4

Memory
Preliminary Level
Topic 1 Memory Basics
1. A place in the computer system where data 7. The term ‘memory’ applies to which one of the following?
programs are temporarily stored. a. Logic b. Storage c. Control
a. Paste b. Open d. Input device e. None of these
c. Memory d. Portable
8. The smallest unit of storage is
e. None of these Punjab & Sindh Bank Clerk 2010
a. Byte b. Bit c. Bug
2. Memory unit is a part of d. Nibble e. None of these UCO Bank PO 2011
a. input device b. control unit
9. Storage devices may be
c. output device d. central processing unit
a. sequential access type only
e. None of these IOB PO 2011 b. direct access type only
3. Memory is made up of c. block access type only
a. set of wires b. set of circuits d. Both (a) and (b)
c. large number of cells d. set of optical fiber e. None of the above
e. None of these 10. Any method for controlling access to or use of memory is
Allahabad Bank Clerk 2011 known as
a. memory protection b. memory map
4. Memory is characterised on the basis of
c. memory management d. memory instruction
a. density b. access time
e. None of these
c. capacity d. Both (b) and (c)
e. None of these SBI Clerk 2008 11. A name or number used to identify a storage location
devices.
5. Which of the following require large computer a. A byte b. A record
memory? c. An address d. All of these
a. Imaging b. Graphics e. None of these
c. Voice d. All of these
12. A storage device used to compensate the difference in
SSC Steno 2012
flow of data, is known as
6. A memory bus is mainly used for communication a. main storage b. auxiliary storage
between c. buffer d. core memory
a. processor and memory e. None of these
b. processor and I/O
13. What is the main folder on a storage device called?
c. I/O device and memory
a. Platform b. Interface
d. Input device and Output device
c. Root directory d. Device driver
e. None of the above
e. None of these SBI PO 2008
KEY Zone
1. c 2. d 3. c 4. d 5. d 6. a 7. b 8. b 9. d 10. a
11. c 12. c 13. c
 Computer Awareness Question Bank | 56
14. One of the class of storage device that can access 22. A half byte is known as
storage locations in any order is a. data b. bit c. half byte d. nibble
a. DTE b. DASD c. DDE d. DDP e. None of these IBPS Clerk 2011
e. None of these SBI Clerk 2009 23. A ……… is approximately a million bytes.
15. The difference between memory and storage is that a. gigabyte b. kilobyte c. megabyte d. terabyte
memory is ……… and storage is ……… . e. None of these
a. temporary, permanent b. permanent, temporary
24. A gigabyte is equal to
c. Both (a) and (b) d. All of these
a. 1024 bytes b. million megabytes
e. None of these SBI Clerk 2009 c. thousand kilobytes d. 1024 megabytes
16. To locate a data item for storage is e. None of these SBI Clerk 2010
a. Field b. Feed c. Database d. Fetch
25. A …………… represents approximately one billion
e. None of these SBI Clerk 2009 memory location.
17. Which of the following is used to hold ROM, RAM, CPU a. kilobyte b. megabyte
and expansion cards? c. gigabyte d. terabyte
a. Computer bus b. Motherboard e. None of these Allahabad Bank Clerk 2008
c. Cache memory d. All of these
26. A 32- bit word computer can access ............ bytes at a
e. None of these SBI Clerk 2009 time.
18. How many types of memory does a computer have? a. 4 b. 8 c. 16 d. 32
a. Four b. Eight c. One d. Two e. 30
e. Five BANK Clerk 2010 27. Which of the following is billionth of a second?
19. The two kinds of main memory are a. Gigabyte b. Terabyte
a. ROM and RAM b. primary and secondary c. Nanosecond d. Microsecond
c. floppy disk and hard disk d. direct and sequential e. Terasecond SBI Clerk 2009
e. None of these
28. Match the following terms with their approximate size.
20. A bit refers to A. kilobyte 1. One billion bytes
a. a farm of storage B. Byte 2. One million bytes
b. a value equal to a kilobyte C. Megabyte 3. One thousand bytes
c. a value equal to a megabyte D. Gigabyte 4. Eigth bits
d. the smallest unit of digital information Codes
e. the same things as a pixel SBI Clerk 2014 A B C D A B C D
a. 2 3 4 1 b. 3 2 4 1
Units of Computer Memory c. 3 4 2 1 d. 1 2 3 4
Measurement e. None of these
1 Bit = Binary Digit
4 Bits = 1 Nibble 29. The analytical engine developed during first
8 Bits = 1 Byte generation of computers used..... as a memory unit.
a. RAM b. Floppies
1024 Bytes = 1 KB (Kilobyte)
c. Cards d. Counter wheels
1024 KB = 1 MB (Megabyte)
e. None of these SBI PO 2014
1024 MB = 1 GB (Gigabyte)
1024 GB = 1 TB (Terabyte) 30. A method of implementing a memory management
1024 TB = 1 PB (Petabyte) system is
1024 PB = 1 EB (Exabyte) a. Buddy memory allocation b. Bridgeware
c. Broadband coaxial system d. All of these
1024 EB = 1 ZB (Zettabyte)
e. None of these
1024 ZB = 1 YB (Yottabyte)
1024 YB = 1 Brontobyte 31. Which of the following places the common data
1024 BrontoByte = 1 Geopbyte elements in order from smallest to largest?
a. Character, File, Record, Field, Database, File
21. Nearly one thousand bytes represent a b. Character, Record, Field, Database, File
a. megabyte b. gigabyte c. Character, Field, Record, File, Database
c. kilobyte d. All of these d. Bit, Byte, Character, Record, Field, File, Database
e. None of these e. None of the above SBI PO 2008; IBPS PO 2012
 Memory | 57
Topic 2 Primary Memory
32. Primary memory is divided into ……… parts. c. secondary memory, primary memory
a. two b. three d. virtual memory, cache memory
c. four d. five e. None of the above
e. None of these
35. The key feature(s) of internal memory is/are
33. Which of the following is/are the primary memory? a. limited storage capacity
a. Random Access Memory (RAM) b. temporary storage
b. Read Only Memory (ROM) c. fast access and high cost
c. Secondary memory d. All of the above
d. Auxiliary memory e. None of the above
e. Both (a) and (b)
36. Primary memory store(s)
34. The internal memory consists of a. data alone b. program alone
a. cache memory, registers c. results alone d. All of these
b. primary memory, cache memory, CPU registers e. None of these IBPS Clerk 2012

Primary Memory
Types of Memory Features Advantages Disadvantages
Random Access ● It provides data for immediate ● It allows data to read and ● It does not provide a
Memory (RAM) manipulation. write into it. permanent storage.
● It also keep track what is currently being ● It is volatile in nature.
processed.
● Also called read/write memory.
Static RAM (SRAM) ● Data is stored in flip flop level. ● It need not to be refreshed ● Quiet expensive.
● It is used as cache memory. prediocally.
● It is very fast.
Dynamic RAM ● It is used for most common type of ● It is less expensive. ● It needs a continuously
(DRAM) memory chip. refreshed of memory to
● It used transistors and capacitors, which store information.
are arranged in a matrix form. ● It is slow.

Read Only Memory ● The ROM chip stores the Basic Input ● It is a permanent storage. ● It has only read
(ROM) Output System (BIOS). ● It doesn’t lose its content capability and no write
when the power is switched capability.
OFF. i.e., it is non-volatile.
Programmable ● It have thousands of fuses. ● It is non-volatile in nature. ● Once the contents
ROM (PROM) ● It is also known as One-Time programmed it cannot
Programmable (OTP) device. be changed.

Erasable ● It can be erased and reprogrammed ● It can be reprogrammed. ● It cannot be

Programmable repeatedly. reprogrammed
ROM (EPROM) ● It can be erased by simply exposing it to a indefinitely.
source of UltraViolet (UV) light. ● Most EPROM chips can
only be rewritten a few
hundred times.
Electrically Erasable ● It can be erased by electrical charge. ● It can erased one byte at a ● This chip can not be
Programmable ● It is often used to store programmable time rather than entire removed from computer
ROM (EEPROM) instructions in devices like printers. chip. for re-writing.

KEY Zone
14. b 15. a 16. d 17. b 18. d 19. a 20. d 21. c 22. d 23. c
24. d 25. c 26. a 27. c 28. c 29. d 30. a 31. c 32. a 33. e
34. b 35. d 36. d
 Computer Awareness Question Bank | 58
37. Primary storage is ……… as compared to secondary 46. Which of the following is the second largest
storage. measurement of RAM?
a. slow and inexpensive a. Terabyte b. Megabyte
b. fast and inexpensive c. Byte d. Gigabyte
c. fast and expensive e. Megahertz BOI Clerk 2012; SBI Clerk 2012
d. slow and expensive
e. None of the above Allahabad Bank PO 2008 47. How many address are required for 25x40 video
RAM?
38. Which is not true for primary storage? a. 2000 b. 1920
a. Information must be transferred to primary storage. c. 1000 d. 2000
b. It is relatively more expensive. e. None of these
c. It allows very fast access to data.
d. It is a part of the CPU. 48. The computer memory used for temporary storage of
e. None of the above data and program is called
a. ROM b. RAM
39. Which of the following can be used as primary c. EROM d. EPROM
memory? e. None of these
a. Compact disks b. Floppy disk
c. Hard disk d. All of these 49. RAM is ............ and ................. .
e. None of these a. volatile, temporary b. non-volatile, permanent
c. non-volatile, temporary d. volatile, permanent
40. How can we measure the speed of RAM? e. None of these
a. Capacity
b. Bus width 50. Which memory is the actual working memory?
c. Bus speed a. SRAM b. ROM
d. Both (b) and (c) c. RAM d. Tab memory
e. None of the above Allahabad Bank Clerk 2010 SSC Steno 2012
41. RAM is a volatile because 51. Which of the following is a virtual disk?
a. it can be used for reading and writing both. a. RAM disk b. ROM disk
b. by which, we can access from any location. c. Floppy disk d. Hard disk
c. it must need power supply continuously to retain data. e. None of these
d. it does not need power supply.
e. None of the above 52. How many write cycles are allowed to a RAM?
a. 1 b. 10
42. The performance of RAM is affected by c. 100 d. 1000
a. access speed b. data transfer unit e. None of these
c. size d. Both (a) and (b)
e. None of these SBI Clerk 2012 53. During processing, the data, programs and processed
information are held temporarily in
43. RAM is also called a. ROM b. RAM
a. volatile memory
c. WRAM d. Floppy
b. non-volatile memory
e. CD
c. virtual memory
d. Both (a) and (b) 54. Memories in which any location can be reached in a
e. None of the above fixed (and short) amount of time after specifying its
44. Today’s, RAM’s common form is built with address, is called
a. transistors a. Sequential-access memory
b. vacuum tubes b. Random-access memory
c. semiconductor’s ICs c. Secondary memory
d. super conductor’s ICs d. Mass storage
e. None of the above e. None of the above
IBPS PO 2011
45. RAM is mainly as a short memory because it 55. Size of primary memory of a PC ranges between
a. is volatile b. is very expensive a. 1 KB to 8 KB b. 64 KB to 256 KB
c. has small capacity d. is programmable c. 20 KB to 40 KB d. 256 KB to 640 KB
e. None of these e. None of these
 Memory | 59
56. Which term is used to describe RAM? 65. Permanent instructions that the computer uses when
a. Dynamic RAM (DRAM) it is turned on and that cannot be changed by other
b. Static RAM (SRAM) instructions are contained in
c. Video RAM (VRAM) a. ROM
d. Window RAM (WRAM) b. RAM
e. All of the above c. ALU
d. CPU
57. In which of the following flip-flop component is used?
e. DRAM Allahabad Bank Clerk 2010
a. SRAM b. DRAM
c. SDRAM d. DDR-RAM 66. ROM stands for
e. None of these a. Random Origin Money
58. Which of the following memory chip is faster? b. Random Only Memory
c. Read Only Memory
a. There is no certainty
d. Random Original Memory SSC Steno 2011
b. DRAM
c. SRAM 67. Which of the following is ‘built in memory’ in
d. DRAM is faster for larger chips computer?
e. None of the above a. EROM b. RAM
59. Which of the following is not RAM? c. ROM d. PROM
a. WRAM b. DRAM e. None of these
c. SRAM d. VRAM 68. A type of memory chip, whose contents cannot be
e. PROM
altered by writing data is
60. The dual-port version of DRAM formerly used in a. RAM b. PROM
graphics adaptors is c. ROM d. EPROM
a. FPM DRAM b. EDORAM e. None of these
c. VRAM d. DDR SDRAM
69. Which one of the following is known as ‘permanent
e. None of these SBI PO 2012 memory’?
61. SDRAM refers to a. RAM b. ROM
a. Synchronous DRAM b. Static DRAM c. Registers d. Cache
c. Semi DRAM d. Second DRAM e. None of these
e. None of these
70. Which of the following memories allows simultaneous
62. Which of the following memories needs refresh? read and write operations?
a. SRAM b. DRAM a. ROM b. RAM
c. ROM d. All of these c. EPROM d. All of these
e. None of these e. None of these
63. Which one is faster SRAM or DRAM? 71. Which of the following is an example of non-volatile
a. DRAM b. SRAM memory?
c. equal d. Either (a) or (b) a. ROM b. VLSI
e. None of these c. LSI d. RAM
64. What is the main advantage of magnetic core memory e. None of these
over semiconductor RAM memory? 72. Which is/are the computer memory that does not
a. More compact and smaller forget?
b. More economical
a. ROM b. RAM
c. A bit does not have to write after reading
c. PROM d. All of these
d. Non-volatile
e. None of these
e. None of the above IBPS PO 2011

KEY Zone
37. c 38. e 39. e 40. d 41. c 42. d 43. a 44. c 45. a 46. b 47. c
48. b 49. a 50. c 51. a 52. a 53. b 54. b 55. d 56. e 57. a 58. c
59. e 60. c 61. a 62. b 63. b 64. d 65. a 66. c 67. c 68. c 69. b
70. b 71. a 72. a
 Computer Awareness Question Bank | 60
73. Which computer memory is essentially empty? 83. BIOS stands for
a. RAM b. ROM a. Basic Input Output Service
c. EPROM d. PROM b. Basic Inner Output System
e. None of these IBPS Clerk 2011 c. Better Input Output Service
d. Better Input Output System
74. Programs stored in ROM are called e. Basic Input Output System SBI Clerk 2008
a. hardware b. firmware
c. software d. None of these 84. Virtual memory is
e. All of these a. memory on the hard disk that the CPU uses an extended
RAM
75. A content of disk that is recorded at the time of b. in RAM
manufacture and that cannot be changed or erased by c. only necessary if you do not have any RAM in your
the user is computer
a. read only b. memory only d. a backup device for floppy disk
c. run only d. write only e. None of the above SBI Associates Clerk 2008
e. None of these
85. Which is a fast main memory and slow peripheral
76. The amount of memory (RAM or ROM) is measured in memory handled by system software?
a. bytes b. bits a. Core memory
c. mega bytes d. mega bits b. Virtual memory
e. Hertz c. RAM
d. Dynamic memory
77. Which of the following is the programmed e. None of the above Allahabad Bank 2012
semiconductor memory?
a. SRAM b. DRAM 86. What do you mean by Virtual memory?
c. EPROM d. All of these a. an extremely large main memory
b. an extremely large secondary memory
e. None of these
c. an illusion of an extremely large memory
78. EPROM can be used for d. a type of memory used in super computers
a. erasing the contents of ROM e. None of the above
b. reconstructing the contents of ROM
87. The technique that extends storage capacities of main
c. erasing and reconstructing the contents of ROM
memory beyond the actual size of the main memory is
d. duplicating ROM
e. None of the above called...... .
IOB PO 2011
a. multitasking
79. EPROM is generally erased by using b. virtual storage
a. ultraviolet rays c. multiprocessing
b. infrared rays d. multiprogramming
c. 12V electrical pulse e. switching
d. 24V electrical pulse
e. None of the above SBI Clerk 2008
88. Flash memory is sometimes called
a. Flash RW
80. EEPROM stands for b. Flash R
a. Electrically Erasable Programmable Read Only Memory c. Flash RAM
b. Electrically Erasable Permanent Resident Of Memory d. Flash Disk
c. Especially Erasable Programmable Read Only Memory e. None of the above
d. Encoded Erasable Programmable Read Only Memory
e. None of the above BANK Clerk 2009
89. MOS stands for
a. Metal Oxide Semiconductor
81. How many write cycles are allowed to EEPROM? b. Most Often Store
a. 1 b. 10 c. Method Organised Stack
c. 100 d. 1000 d. None of the above SSC CHSL 2013
e. None of these
90. USB stands for
82. Computer’s BIOS stored in a. Uniform Service Bus
a. RAM b. hard disk b. Universal Serial Bus
c. ROM d. floppy disk c. Uniforms Sector Buffer
e. None of these IOB Clerk 2008 d. Universe Service Bus SSC CHSL 2013
 Memory | 61
91. Which of the following memory is capable of operating
at electronics speed?
Topic 4 Secondary Memory
a. Semiconductor memory b. Magnetic disks 98. Secondary storage
c. Magnetic drums d. Magnetic tapes a. does not require constant power
e. None of these Allahabad Bank PO 2011 b. does not use magnetic media
c. consists of four main types of devices
92. Which of the following has the fastest access time? d. does not store information for later retrieval
a. Semiconductor memory e. None of the above
b. Magnetic disk
c. Magnetic tapes 99. Memory that cannot be processed directly by CPU is
d. Compact disk a. internal memory
e. None of the above Allahabad Bank 2011 b. external memory
c. cache memory
d. system memory
Topic 3 Cache Memory e. None of the above

93. Cache memory acts between 100. The secondary storage devices can only store data but
a. CPU and RAM b. RAM and ROM they cannot perform
c. CPU and hard disk d. All of these a. arithmetic operations
e. None of these IBPS Clerk 2012 b. logic operations
c. fetch operations
94. The idea of cache memory is based d. All of the above
a. on the property of locality of reference e. None of the above
b. on the heuristic 90-10 rule
c. on the fact that references generally tend to cluster 101. ……… is the maximum amount of data that can be
d. All of the above stored on a storage medium.
e. None of the above IBPS Clerk 2012 a. Magnetic storage b. Optical storage
c. Solid-data storage d. Storage capacity
95. Which of the following memories has the shortest
e. None of these
access time?
a. Cache memory 102. Auxiliary memory is also called
b. Magnetic bubble memory a. primary memory
c. Magnetic core memory b. third memory
d. RAM c. extra memory
e. ROM d. secondary memory
e. None of the above SBI Clerk 2011
96. The reason for the implementation of the cache
memory is 103. Which of the following is not used as secondary
a. to increase the internal memory of the system storage?
b. to difference in speeds of operations of the processor and a. Semiconductor memory
memory b. Magnetic disks
c. to reduce the memory access and cycle time c. Magnetic drums
d. All of the above d. Magnetic tapes
e. None of the above e. None of the above
97. Write through technique is used in which memory for 104. The storage that supplements the primary internal
updating the data. storage of a computer is known as
a. Virtual memory a. secondary storage
b. Main memory b. primary storage
c. Auxiliary memory c. back-end storage
d. Cache memory d. background storage
e. None of the above IBPS Clerk 2012 e. None of the above

KEY Zone
73. a 74. b 75. a 76. c 77. c 78. c 79. a 80. a 81. d 82. c 83. e
84. a 85. b 86. c 87. b 88. c 89. a 90. b 91. a 92. a 93. a 94. a
95. a 96. a 97. d 98. a 99. b 100. d 101. d 102. d 103. a 104. a
 Computer Awareness Question Bank | 62
105. Which of the following computer’s memory is 115. What is the shape of the tracks on the recording
characterised by low cost per bit stored? surface of a disk platter?
a. primary b. secondary a. Spiralling b. Elliptical
c. hard disk d. All of these c. Concentric d. Wavy
e. None of these Allahabad Bank PO 2010 e. None of these IBPS Clerk 2011
106. The key feature(s) of secondary memory storage 116. The space between the read/write ceramic head of a
devices is/are disk drive and the disk platter called fly-height is of the
a. very high storage capacity order of
b. permanent storage (non-volatile) a. 0.0125 mm b. 0.0025 mm
c. stores data and instructions that are not currently being c. 0.006 mm d. 1.012 mm
used by CPU e. None of these IBPS Clerk 2011
d. All of the above
e. None of the above 117. The central part of a disk is known as
a. surface b. hub
107. Which is an item of storage medium in the form of
c. cylinder d. cluster
circular plate?
e. None of these
a. Disk b. CPU c. Printer
d. ALU e. None of these 118. Data for the ‘hard disk’ type is stored in
108. Removable disk is often called a. main memory b. partition table
a. Flash drives b. RAM drive c. CMOS RAM setup d. boot record
c. Expansion card d. All of these e. None of these
e. None of these
119. Capacity of hard disk is measured in
109. Which is the most popular medium for direct-access a. bytes b. kilobytes
secondary storage of a computer? c. megabytes d. gigabytes
a. Magnetic tape b. Magnetic disk e. bits BOB Clerk 2010
c. RAM d. ROM
e. None of these Syndicate Bank Clerk 2010 120. The most common storage device for the personal
computer is the
110. A set of adjacent tracks on a magnetic disk is a. floppy disk b. USB personal computer
a. cluster b. surface c. mainframe d. A laptop
c. band d. cylinder e. None of these SBI Clerk 2014
e. None of these
121. Which of the following is the largest manufacture of
111. The data on the tracks on a magnetic disk are
hard disk drives?
written as
a. IBM b. Seagate
a. up or down b. tiny magnetic spots
c. Microsoft d. Acer
c. 0 or 1 d. high or low voltage
e. None of these
e. None of these BOB Clerk 2010
112. Average access time in the magnetic disk is of the 122. The thick, rigid metal platters that are capable of
order of storing retriving information at a high rate of speed are
a. 50 millisecond b. 50 microsecond known as
c. 50 second d. All of these a. hard disks b. SAN
e. None of these c. soft disks d. flash memory
e. None of these SBI Clerk 2014
113. What is the name of the record-like object which is
coated with a magnetic material and is used for 123. Hard disks and diskettes are
storing data in a computer? a. direct access storage devices
a. Tape b. Track b. sequential access storage devices
c. Disk d. Format c. rarely used with microcomputers
e. None of these IBPS Clerk 2011 d. Both (a) and (c)
e. None of the above Allahabad Bank Clerk 2010
114. Which command can be used to recreate the disk’s
tracks and sectors? 124. Hard disk is coated in both sides with
a. Edit b. Delete a. magnetic metallic oxide b. optical metallic oxide
c. Format d. Save c. carbon layer d. All of these
e. None of these e. None of these
 Memory | 63
125. Magnetic tape can serve as 134. Rotational delay is also known as
a. secondary storage media b. output media a. seek time b. shift time
c. input media d. All of these c. latency d. access time
e. None of these e. All of these

126. We can format the hard disk at the time of 135. Access time is
a. RAM b. DM and ADM a. Seek time + latency time
c. booting d. disk reader b. Seek time
e. None of these c. Seek time − latency time
d. latency time
127. Which of the following can hold maximum of 1.44 MB e. None of the above
data?
a. Hard disk b. CD-ROM 136. Which of the following Blue-ray disk is used only for
c. Floppy disk d. DVD high-definition audio/video and television recording?
e. None of these a. BD-RE b. BD-ROM
c. BD-RW d. BD-R
128. A winchester disk is a
e. None of these
a. disk stack b. removable disk
c. flexible disk d. All of these 137. FPI stands for
e. None of these Allahabad Bank Clerk 2010 a. Faults Per Inch b. Frames Per Inch
129. Which of the following memories contains a thin film c. Figure Per Inch d. Film Per Inch
of magnetic material sandwitched between two e. None of these SBI Associates Clerk 2008
permanent bias magnets? 138. The storage subsystem in a micro computer consists
a. ROM b. Magnetic disk mainly of ……..… or ……....… media, with varying
c. Core memory d. Bubble memory
capacities.
e. None of these
I. memory II. magnetic
130. In comparison to the internal (main) memory, tape or III. optical IV. video
disk memory is
Select the correct one
a. slower and more expensive
a. I b. Both I and II
b. slower and less expensive
c. I, II and III d. Both II and III
c. faster and more expensive
e. None of these SBI Clerk 2013
d. faster and less expensive
e. None of the above BOB Clerk 2008 139. Which one of the following uses sequential access
131. The time taken for the read/write head to move to the mechanism?
a. Magnetic tape b. Hard disk
correct track on the magnetic disk is called
c. Floppy disk d. CD
a. epoch delay b. latency delay
c. seek time d. approach time e. None of these
e. None of these 140. Which one of the following medium is universal,
132. As compared to a magnetic tape, the main advantage portable and inexpensive but has its own limitation in
of magnetic disk is terms of storage capacity and speed?
a. rigidity b. direct access a. Hard disk b. Winchester disk
c. low cost d. high packing density c. Floppy disk d. Optical disk
e. None of these IBPS Clerk 2013 e. None of these

133. Hard disk drives are considered .......... storage. 141. Specification for a floppy drive is
a. flash b. temporary a. TPI b. CPI
c. worthless d. non-voltaile c. DPI d. FPI
e. non-permonent SBI Clerk 2014 e. None of these

KEY Zone
105. b 106. d 107. a 108. a 109. b 110. d 111. b 112. a 113. c 114. c 115. c
116. b 117. b 118. e 119. d 120. e 121. b 122. a 123. a 124. a 125. d 126. c
127. c 128. a 129. c 130. b 131. c 132. b 133. d 134. c 135. a 136. a 137. b
138. d 139. a 140. c 141. a
 Computer Awareness Question Bank | 64
142. Which of the following description related to floppy 144. Auxiliary storage consists of
disk? a. Magnetic tapes b. CDs
a. 9 Track, 1600 BPI b. Single sided, double density c. Floppies d. All of these
c. 33 MHz, zero wait time d. 40 MB space e. None of these
e. None of these
145. Which of the following is not a valid size of a floppy
143. Capacity at a 5 41 inch floppy disk is disk?
a. 1.44 MB b. 1.2 MB a. 8" b. 2"
c. 1.44 GB d. 2 MB c. 3.5" d. 5.25"
e. None of these e. None of these IOB PO 2011

Secondary Memory (Auxiliary Storage)

Device Cost Capacity Speed of Portability Features
Access
Hard Disk Expensive 20 GB to 10 TB Very fast No-usually — The speed of hard disk is
inside machine determined in Revolutions
Per Minute (RPM).
— It is permanent memory.
— It provides relatively quick
access.
Floppy Disk Very cheap 1.44 MB Slow Yes but easily — It is also known as ‘diskette’.
damaged — It is soft removable magnetic
disk.
CD Very cheap 0.65-0.90 GB, Fast Yes but easily — Pre-stamped disc for
700 MB damage delivering applications or
music.
CD-ROM Very cheap Around 700 MB Fast Yes and not — Contains the most update
easily damaged product and service.
CD-R Very cheap Around 700 MB Fast Yes and not — They are not reusable.
easily damaged — Write once CD for music,
short video etc.
CD-RW Very cheap Around 700 MB Fast Yes and not — They are reusable.
easily damaged — Write many CD for music.

DVD Fairly cheap Big up to 17 GB Fast Yes and not — Pre stamped disc for
easily damaged delivering standard definition
video.
DVD-R Fairly cheap 4.37 GB Fast Yes and not — Write-once DVD for video.
easily damaged — Single and dual layer.

DVD+RW Fairly cheap 4.37 GB Fast Yes and not — Single and dual layer.
easily damaged — Write many DVD.

USB Flash Drive Expensive for Increasing but Fast Yes, very small — The single most portable data
amount of storage upto 1 GB and robust backup device possible.
Blue Ray Cheap 25 GB single layer, Advance Yes, can’t — Write once Blue ray.
Disk-Read (BD-R) 50 GB dual layer access Format it
Blue Ray Cheap 25 GB single layer, Advance Yes, can’t — Write many Blue ray disk.
Disk-Read Write 50 GB dual layer access Format it
(BD-RW)
Sandisk Ultra Very cheap 64 GB Advance Yes — Very small with high storage.
access
 Memory | 65
146. A DVD is an example of a(n) 154. The normal speed of the motor in revolution per minute
a. optical device (rpm) used for a hard disk drive is
b. output device a. 1000–1200 b. 300–900
c. hard disk c. 5400–7200 d. 200–300
d. solid state storage device e. None of these
e. None of the above SBI Clerk 2014
155. All sectors on a floppy disk are bigger than tracks when,
147. What is the alternative name for a diskette? a. always
a. Floppy disk b. Hard disk b. only boot sector
c. Flexible disk d. Winchester disk c. only sectors on the periphery
e. None of these d. only sectors at the centre
e. None of the above
148. The general range of speed in revolutions per minute
(rpm) at which floppy disks rotate is 156. A floppy disk can be made protected by
a. 2400–4700 b. 390–600 a. breaking the slider lever
c. 150–250 d. 300–600 b. shifting the slide lever away from the edge of the disk
e. None of these c. shifting the slide lever towards the edge of the disk
d. All of the above
149. A floppy disk contains e. None of the above
a. circular tracks
b. sectors 157. A beam of light used to record and retrieve data on
c. sequential tracks optical disc is known as
d. Both (a) and (b) a. polarised light b. unpolarised concentric light
e. None of the above c. laser beam d. coloured light
e. None of these
150. The 3.5 inch floppy disk drives were originally
designed by 158. CD-ROM is a
a. semiconductor memory b. memory register
a. IBM b. Sony
c. magnetic memory d. All of these
c. Panasonic d. Samsung
e. None of these
e. None of these
159. CD-ROM stands for
151. Floppy disk drives were first introduced by which of
a. Compactable Read Only Memory
the following computer manufactures?
b. Compact Data Read Only Memory
a. IBM b. Sony c. Compactable Disc Read Only Memory
c. Panasonic d. Compaq d. Compact Disc Read Only Memory
e. None of these e. None of the above
1
152. The HD format of 3 inch floppy diskette is 160. Which technology is used in a CD-ROM
2
a. 512 bytes per sector a. Optical b. Mechanical
b. 512 kilobytes per sector c. Electro-mechanical d. Fiber optical
c. 612 bytes per sector e. None of these
d. 612 kilobytes per sector 161. CD-ROM drive is used
e. None of the above
a. to play music b. to play compact disc
153. What is the brand name of the popular floppy disk c. to install software d. to control virus
e. None of these
manufactured by Allied Electronics and Magnetic
Ltd? 162. What is the shape of CDs?
a. Dycill b. Verbatim a. Quadrilateral b. Rectangular
c. Amkette d. Maxells c. Circular d. Hexagonal
e. None of these UCO Bank 2010 e. None of these Allahabad Bank Clerk 2010

KEY Zone
142. b 143. a 144. d 145. b 146. a 147. a 148. c 149. d 150. b 151. a 152. a
153. c 154. c 155. e 156. c 157. c 158. e 159. d 160. a 161. b 162. c
 Computer Awareness Question Bank | 66
163. For viewing video CDs, you would use 171. Which of the following memory storage is slow?
a. CD player a. Cache memory
b. windows media player b. RAM
c. windows video player c. Magnetic disc
d. windows movie player d. Optical disc
e. None of the above IOB PO 2011 e. None of the above

164. What is the process of copying software progams 172. Which of the following is optical disk?
from secondary storage media to the hard disk a. ROM b. Hard disk
a. Configuration b. Download c. DVD d. Register
c. Storage d. Upload e. None of these
e. Installation
173. How much data can be stored inside a DVD?
165. In a CD-RW, you can a. 700 MB b. 1 GB
a. read and write information c. 4.4 GB d. 4.7 GB
b. only read information e. 1000 MB
c. only write information
d. read, write and rewrite information 174. A DVD-RAM is similar to a ....... except it has storage
e. None of the above capacity upto 5.2 GB.
a. CD-R b. CD-RW
166. The information stored in CD-ROM is in the form of c. floppy disk d. hard disk
a. binary b. digital e. None of these IBPS PO 2011
c. analog d. codes
e. None of these 175. Before a disk drive can access any sector record, a
computer program has to provide the record’s disk
167. Three types of compact disks include CD-ROM, CD-R address. What information does this address specify?
and a. Track number
a. CD-W b. CD-RAM b. Sector number
c. CD-DVD d. CD-RW c. Surface number
e. None of these IOB PO 2011 d. All of the above
e. None of the above
168. Which media has/have the ability to have
data/information stored (written) on them by users 176. Which storage device is mounted on ‘reels’?
more than once? a. Floppy disk b. Hard disk
a. CD-R disc b. CD-RW disc c. Magnetic tape d. CD-ROM
c. Zip disc d. Optical disc e. None of these IBPS Clerk 2013
e. Both (b) and (c)
177. The data recording area between the blank gaps on
169. How much data can be stored in a CD? magnetic tape is called a
a. 1 GB b. 700 MB a. record b. block
c. 2.5 MB d. 1.44 MB c. field d. database
e. 2.86 MB e. None of these

170. Which of the following items below are considered 178. The metal disks, which are permanently housed in,
removable storage media? sealed and contamination free containers are
I. Removable hard disk cartridges called
II. Hard disks a. hard disk b. floppy disk
c. winchester disk d. flexible disk
III. Flexible disk cartridges
e. None of these
IV. Optical (Magneto-optical) disks
Select the correct statement(s) 179. Which is not a storage device?
a. I and II b. I, II and III a. Floppy disk b. Printer
c. II, III and IV d. I, III and IV c. DVD d. Hard Disk
e. All of these e. CD

KEY Zone
163. b 164. e 165. d 166. b 167. d 168. e 169. b 170. d 171. d 172. c 173. d
174. b 175. d 176. c 177. b 178. c 179. b
 Advanced Level
1. In comparison with static RAM memory, the 7. It is better to copy a file from a floppy disk to hard disk,
dynamic RAM memory has then open the copy on the hard disk because
a. lower bit density and higher power consumption a. a floppy disk is easily moved from one computer to another
b. higher bit density and higher power consumption b. you can store more on a hard disk
c. lower bit density and lower power consumption c. the computer cannot open a file stored on a floppy disk
d. higher bit density and lower power consumption d. reading a hard disk is much faster and safer
e. None of the above e. None of the above SBI Clerk 2012
2. What is the difference between a CD-ROM and a 8. RAM is
CD-RW? a. a memory built from silicon chips that is used to store
a. They are the same just two different terms used by programs and data temporarily, while they are being
processed
different manufacturers
b. is an acronym for random access memory
b. A CD-ROM can be written to and a CD-RW cannot
c. Readily Assigned Memory
c. A CD-RW can be written too, but a CD-ROM can only
d. Both (a) and (b)
be read from
e. None of the above
d. A CD-ROM holds more information than a CD-RW
e. None of the above 9. What happens when we try to delete the files from the
3. A CD-RW disk floppy?
a. has a faster access than an internal disk a. The files get moved to the Recycle bin
b. is a form of optical disk, so it can only be written b. Files from a floppy cannot be deleted
once c. The files get deleted and can be restored again from Recycle
c. holds less data than a floppy disk bin
d. can be erased and rewritten d. The files get deleted and cannot be restored again
e. None of the above e. The files get copied on the hard disks

4. Magnetic tape is not practical for applications 10. Pick out the wrong statement.
where data must be quickly recalled because a. Information stored in RAM can be changed by over writing it
tape is b. Information stored in ROM cannot be changed by over-writing
c. Information can be stored in any location of RAM
a. a random access medium
d. Computer main memory can be accessed only sequentially
b. expensive
e. None of the above
c. a read only medium
d. fragile and easily damaged 11. Memory, also called Random Access Memory or RAM,
e. a sequential access medium IOB PO 2011 when
5. Advantage of DRAM is a. contains the electronic circuits that cause processing to occur
b. makes the information resulting from processing available for
a. it is inexpensive and cheaper than SRAM
use
b. it stores more than SRAM
c. allows data, programs, commands and user responses to be
c. it is faster than SRAM entered into a computer
d. its data can be easily erased as compared to SRAM d. consists of electronic components that store data
e. None of the above e. None of the above
6. The larger the RAM of a computer, the faster its 12. Which of the following describes the characteristics of
processing speed is, since it eliminates SRAM?
a. need for external memory a. Cheap but slow
b. need of ROM b. More clear and more consumption of power
c. frequent disks I/Os c. Based on combination of transistor and capacitor
d. need for wider data d. Less consumption of power
e. None of the above e. None of the above SBI Clerk 2012

KEY Zone
1. d 2. c 3. d 4. e 5. a 6. a 7. d 8. d 9. d 10. d
11. d 12. b
 Computer Awareness Question Bank | 68
13. Which of the following is are advantage(s) of CD-ROM 20. The working of magnetic tape is
as a storage media? I. it is divided horizontally into tracks and vertically into
a. CD-ROM is an inexpensive way to store large amount of frames
data and information II. data is recorded on tape in the form of blocks
b. CD-ROM disks retrieve data and information more quickly III. magnetic tape mechanism consists of the supply reel,
than magnetic disks do
take-up reel and the read/write head assembly
c. CD-ROMs make less errors than magnetic media
d. All of the above IV. tapes are categorised based on their width-1/4 inch,
1/2 inch, etc
e. None of the above Allahabad Bank PO 2011
Which of the following is true statement?
14. How is it possible that both programs and data can be a. I and II are true
stored on the same floppy disk? b. II is false and III is true
a. A floppy disk has two sides, one for data and one for c. I and IV are false
program d. All are true
b. A floppy disk has to be formatted for one or for the other e. None of the above
c. Programs and data are both software and both can be
stored on any memory device 21. Advantage of zip disk is
d. Floppy disks can only store data, not programs a. it can be connected to the computer system externally
e. They are better than CDs IOB PO 2011 using a parallel chord or SCSI cable
b. it is commonly used medium for distributing software
15. Which of the following statements is true? and large data
a. Cache memories are bigger than RAM c. it looks like CDs, in shape and physical size
b. Cache memories are smaller than RAM d. it improves on CD technology
c. ROM are faster than RAM e. None of the above
d. Information in ROM can be written by user
e. None of the above 22. Which of the statements is false?
a. Flash memory is a kind of semiconductor based
16. An advantage of blocking a tape is that non-volatile, rewritable computer memory
a. additional processing time is consumed b. Magnetic tapes are inexpensive, can store a large amount
b. the direct file method can be emulated of data, are easy to transport, are slow access device and
c. tapes contain less data and longer tapes are suitable for backup storage
d. less tape is used to store the same amount of data c. Byte is the smallest unit that is used to represent data in a
e. None of the above computer
d. Cache, the fast memory, is placed between the CPU and
17. Which of the following is/are not advantage(s) of the RAM
magnetic disk storage? e. None of the above
a. The access time of magnetic disk is much less than that
of magnetic tape 23. The data from the memory can be accessed in the
b. Disk storage is longer lasting than magnetic tape following ways
c. Disk storage is less expensive than tape storage I. Sequential, i.e., the locations in the memory are
d. All of the above accessed in a predefined sequential order
e. None of the above II. Random, i.e., the locations in the memory can be
18. Pick the incorrect statement. accessed in any order regardless of the memory
location that was accessed before
a. Registers are placed inside the CPU
b. Cache memory is placed after RAM III. Direct, i.e., the data are accessed independently of the
CPU
c. Primary memory is placed next in the hierarchy
d. Secondary memory is the farthest from CPU Which of the following is incorrect statement?
e. None of the above a. Both I and II b. Both II and III
c. I, II and III d. All are incorrect
19. Static RAM
e. None of these
I. uses multiple transistors (4-6), for each memory cell
II. needs constant refreshing and therefore slower than 24. PROM is a
DRAM a. PROM are manufactured blank and can be programmed
III. stores information as long as it is supplied with power at wafer
b. it’s content can be changed
Which of the following is/are false statement(s)?
c. it is also known as ‘one time programmable’ device
a. I and II is false b. I and III are false
d. Both (a) and (c)
c. II is false d. All of these
e. None of the above
e. None of these
 Memory | 69
25. Pick out the correct statement about magnetic tapes. 29. The best reason that a computer needs to have a hard
a. They do not hold high data recording density disk is because
b. They are randomly accessed in nature a. it can then use the same programs as other computers
c. They have virtually unlimited storage capacity b. it would not work without one
d. They are flexible as compared to other media types c. it can store information, when it is switched off
e. None of the above d. it can store information, while it is working
e. None of the above
26. Which of the following is/are not important aspect(s)
of hard disks? 30. What is the most common way to get a virus in your
a. The performance of the hard disk is critical, when computer’s hard disk?
multitasking is exercised a. By installing games from their CD-ROMS
b. A hard disk is considered the successful storage b. By uploading pictures from mobile phones to computer
component by a long way c. By opening e-mails
c. The whole disk mechanism and components are encased d. By sending e-mails
in a protective housing to prevent any dust particle e. None of the above
d. All of the above
e. None of the above 31. How can the user determine, what programs are
available on a computer?
27. The term ‘data access time’ means a. Checking the hard disk properties
a. a register or storage location that forms the result of an b. Viewing the installed programs during the booting
arithmetic or logic operation process
b. time taken by a computer or data storage device to c. Checking the control panel for a list of installed programs
respond to a user’s request for data d. Checking the existing files saved on the disk
c. to locate the desired data e. None of the above SBI Clerk 2007
d. All of the above
e. None of the above
32. .............. is having more memory address than are
physically available.
28. What characteristic of Read Only Memory (ROM) a. Virtual memory b. System software
makes it useful? c. Application software d. RAM
a. ROM information can be easily updated e. Vertical memory
b. Data in ROM is non-volatile that is it remains there even
without electrical power
33. Virtual memory allocates hard disk space to
c. ROM provides very large amounts of inexpensive data supplement the immediate, functional memory
storage capacity of what?
d. ROM chip are easily swapped between different brands of a. ROM b. EPROM
computer c. The registers d. Extended memory
e. None of the above e. RAM SBI PO 2014

KEY Zone
13. d 14. c 15. b 16. d 17. e 18. b 19. c 20. d 21. a 22. c
23. e 24. d 25. a 26. e 27. b 28. b 29. c 30. c 31. c 32. a
33. e
 Explanations for Selected Questions
Preliminary Level
4. Access time refers to the time required between the request Cache memory is the fast memory, is placed between the CPU
made for read/write operation and the time taken for the and the RAM. The contents from the RAM are stored in the
completion of the request. cache.
CPU registers are very high speed storage areas located inside
7. A computer memory refers to the electronic holding place for
the CPU. After CPU gets the data and instructions from the cache
instructions and data where the processor can reach quickly. or RAM, the data and instructions are moved to the registers for
8. Bit is the smallest unit of data on a machine and a single bit processing.
can hold only one of two values 0 and 1. 40. Bus width refers to the number of bits that can be sent to the
12. Buffer is a temporary storage area that takes a stream of bits CPU simultaneously.
from a device. It hold the bits and then release them to the Bus speed refers to the number of times a group of bits that
CPU at a convenient rate so that the CPU can act on it. can be sent each second.
14. DASD It is ‘Direct Access Storage Device’. A Redundant array 56. Static RAM (SRAM) retains data as long as power is provided
of Independent Disks (RAID) is also a type of DASD. DASD is to the memory chip and need not to be refreshed
used to describe any disk storage that is directly connected periodically.
to the computer. Dynamic RAM (DRAM) the data on DRAM continues to move
23. Byte is a unit of eight bits is known as a byte. Hence, a byte is in and out of the memory as long as power is available and
able to contain any binary number between 00000000 and thus, DRAM must be continually refreshed to maintain the
11111111. It is represented by B. data.
Kilobyte In a decimal system, kilo stands for 1000, but in a binary Video RAM is a dual ported version of DRAM, which was
system, kilo refers to 1024. Therefore, a kilobyte is equal to 1024 formely used in graphics adaptors. It was designed to
bytes. It is usually represented as KB. provide two access paths to each memory address.
Megabyte comprises 1024 kilobytes or 10,48,576 bytes. However, Window RAM is a type of RAM developed by Samsung
since this number is hard to remember, a megabyte can be
Electronics that supports two ports.
thought of as million bytes. Megabyte is the standard unit of
measurement of RAM and is represented as MB. 77. An EPROM is programmed in exactly the same manner as a
Gigabyte consists of 1024 megabytes (10,73,741,824 bytes). It is PROM. It can be erased and reprogrammed repeatedly by
the standard unit of measurement for hard disks and is often simply exposing it to a strong source of UltraViolet (UV) light
represented as GB. for a certain amount of time.
Terabyte refers to 1024 gigabytes and is often represented as TB. 80. EEPROM can be erased by an electrical charge and then by
Terabyte memory is usually associated with only super using slightly higher than normal voltage. It can be erased
computers. by one byte at a time, rather than erasing the entire chip with
33. RAM (Random Access Memory) is used to store the data and UV light.
instructions that need to be operated upon by CPU. 86. Virtual memory is a way of showing the main memory of a
It is classified into two parts computer system effectively larger than it really is.
(a) Static RAM (SRAM)
88. Flash memory is a kind of semiconductor based non-volatile,
(b) Dynamic RAM (DRAM)
rewritable computer memory. It is used in digital camera,
ROM (Read Only Memory) is a non-volatile primary memory. mobile phone, printer, laptop, etc.
It does not leave its contents when the power is switched off.
90. USB It is designed to standardize the connection of
It is further classified into following categories
computer peripherals (include keyboard, pointing devices,
(a) Programmable ROM (PROM)
disk drives) to personal computers.
(b) Erasable Programmable ROM (EPROM)
(c) Electrically Erasable Programmable ROM (EEPROM) 91. Semiconductor memory is the technology for storing digital
information that is fabricated by using integrated circuit
34. Primary memory consists of RAM (Random Access Memory),
technology.
which is volatile in nature and ROM (Read Only Memory),
e.g., RAM, ROM, etc.
which is non-volatile in nature.
 Memory | 71
111. Magnetic disks are cheap storage device, can store a large amount of Advanced Level
data, are easy to carry, are suitable for frequently read/write data and
are fast access device. 21. Zip disk Zip disks were a floppy-like technology
that used design concepts from hard disks.
118. Hard disk is a fixed disk and can store much more data than floppy disk.
It is the key secondary storage device of computer. 24. PROM short for Programmable Read Only
Memory, a memory chip on which data can be
CMOS RAM (Complementary Metal-Oxide Semiconductor) RAM is a type
written only once. Once a program has been
of memory chip that has low power requirements.
written onto a PROM, it remains there forever.
122. Hard disk drive is the most common and usually largest, data storage
25. Magnetic tape is a medium for magnetic
device of the computer system.
recording, made of a thin magnetizable coating
131. The time taken to position the read/write head over the desired track on on a long, narrow strip of plastic.
the disk plotter is known as seek time.
30. Virus use the host’s resources, memory and hard
159. CD-ROM is a non-volatile optical data storage medium using the same disk space amongst other, and such are
physical format as audio compact disk, readable by a computer with a sometimes deliberately destructive as erasing
CD-ROM drive. The standard 12cm diameter CD-ROM store about 660 files, formatting hard disk.
megabytes.
33. Virtual memory allocated hard disk space to
166. In digital form, data is stored in the form of 0 and 1. supplement the immediate, functional memory
176. Magnetic tape are inexpensive, can store a large amount of data, are easy capacity of RAM. If your computer lacks, the
to transport, are slow access device, and are suitable for backup RAM needed to run a program or operation,
storage. operating system uses virtual memory to
compensate.