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The document contains multiple choice questions about microprocessors and their components. It asks about the specifications of early microprocessors like the 4004 and 8008 as well as the 8085, 8086, and their features. Questions include the data bus size of the first microprocessor, what processor was introduced by Intel in 1971, whether certain processors are 8-bit, the limitations of 8-bit microprocessors, the address and data lines of the 8085, the size of registers and address space for the 8086, the functions of registers like the base pointer and index registers, uses of flags, how instructions are prefetched and stored, what is not part of the execution unit, segment addressing, and the number of address lines for

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67 views3 pages

1

The document contains multiple choice questions about microprocessors and their components. It asks about the specifications of early microprocessors like the 4004 and 8008 as well as the 8085, 8086, and their features. Questions include the data bus size of the first microprocessor, what processor was introduced by Intel in 1971, whether certain processors are 8-bit, the limitations of 8-bit microprocessors, the address and data lines of the 8085, the size of registers and address space for the 8086, the functions of registers like the base pointer and index registers, uses of flags, how instructions are prefetched and stored, what is not part of the execution unit, segment addressing, and the number of address lines for

Uploaded by

Thil Pa
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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1. The first micro-processor had a (n) ______.

a) 1-bit data bus


b) 2- bit data bus
c) 3-bit data bus
d) 4-bit data bus

2. __________ processor is first introduced by the Intel in 1971.


a) 8080
b) 4004
c) 8008
d) 8085

3. Which of the following is/are 8-bit micro processor?


a) 8008
b) 8080
c) 8085
d) All of the mentioned

4. The limitations of the 8-bit microprocessors was/were is ________.


a) Low speed of execution
b) Low memory addressing capability
c) Less powerful instruction set
d) All of the mentioned

5. The number of address and data lines of 8085 are____.


a) 8 and 8
b) 16 and 8
c) 8 and 16
d) 16 and 16

8. A 16-bits address bus can generate _____addresses.


a) 32767
b) 25652
c) 65536
d) None of the mentioned

1. The register of 8086 are_____ bits in size.


a) 8
b) 12
c) 16
d) 20
3. Which of the following is a 16-bit register?
a) AL
b) AX
c) AH
d) All of the mentioned

8. Base Pointer (BP) contains offset address of ________ segment.


a) Data segment
b) Code segment
c) Stack segment
d) Extra segment

11. The index register is used to hold __________.


a) Segment memory
b) Offset memory
c) Offset address
d) Segment address

15. Direction flag is used with ____.


a) String instructions
b) Stack Instructions
c) Arithmetic Instructions
d) Branch Instructions

3. The BIU prefetches the instruction from memory and store them in _____.
a) Queue
b) Register
c) Memory
d) Stack

5. Which is not part of execution unit?


a) ALU
b) Address conversion mechanism
c) Flag register
d) General purpose registers

9. If the size of the segment is 64 kb, what will be the starting and ending off set addresses of it
a) 0000H to 7FFFH
b) 0000H to FFFFH
c) 8000H to FFFFH
d) 00000H to FFFFFH
1. A microprocessor is a _______ chip integrating all the functions of a CPU of a computer.

A. multiple

B. single

C. double

D. triple

34. The conditional branch instruction specify ___________ for branching

A. conditions B. instruction C. address D. memory

36. The LES copies to words from memory to register and __________

A. DS B. CS C. ES D. DS

38. The _______ contains an offset instead of actual address A. SP B. IP C. ES D. SS

42. The pin of minimum mode AD0-AD15 has ____________ address A. 16 bit B. 20 bit C. 32 bit D. 4 bit

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