Name: ____________________________________________________________ Class: _________________

SECOND TERM E-LEARNING NOTE

SUBJECT: DATA PROCESSING

SCHEME OF WORK

WEEK TOPIC
REVISION.
THE ART OF INFORMATION PROCESSING.
PROCESS OF INFORMATION TRANSMISSION.
PROCESS OF INFORMATION TRANSMITTING.
MEDIUM OF INFORMATION TRANSMISSION.
COMPUTER ETHICS.
SAFETY MEASURES.
OPERATING SYSTEM 1.
OPERATING SYSTEM 11.
FUNCTIONS OF OPERATING SYSTEM.
REVISION.
EXAMINATION.

REFERENCE
Hiit @ Schools Data Processing for Senior Secondary Education.

WEEK ONE DATE: ………………

TOPIC: DATA AND INFORMATION.
Data is raw, unorganized or unprocessed facts that need to be processed. Data can be
something simple and seemingly random and useless until it is organized.

TYPES OF DATA
Qualitative data: is a descriptive information (it describes something).
Quantitative data: is a numerical information.

CLASSIFICATION OF QUANTITATIVE DATA

Continuous data
Discrete data

EXAMPLES OF DATA
Numbers
Name of thing, place or animal
Words
Measurements Descriptions of things

SOURCES OF DATA
Television
Internet
Articles
Government documents
Newspapers and Magazines
Textbooks

EVALUATION
Define data.
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Name: ____________________________________________________________ Class: _________________
Mention the two types of data

INFORMATION
Information can be defined as a processed data that is meaningful to the user. Information can
be used in the decision making process.

EXAMPLES OF INFORMATION
Student ID card
Weather report
Student’s Report card
National passport

SOURCES OF INFORMATION
Internet
Database
Magazine/Newspaper
Document
Census Board

WAYS OF HANDLING DATA

Electronic Methods
Non – Electronic Methods

GENERAL EVALUATION
Define information
Differentiate in tabular form, between data and information
Give four examples of data.
State any five sources of information.

READING ASSIGNMENT
Hiit @ Schools , data Processing for Senior Secondary Education, Pgs 8 – 9.

WEEKEND ASSIGNMENT
The unprocessed fact is called ……. A. Data B. Processing C. Information D. All of
the above
There are ……… types of data. A. 3 B. 6 C. 2 D. 8
One of these is not an example of data. A. Words B. Numbers C. Weather report. D.
Observations
We have ………. ways of handling data. A. 3 B. 5 C. 2 D. 4
Sources of information are these except. A. Internet B. Database C. Census board D.
Textbooks

THEORY
Explain the two ways of handling data.
List five examples each of Data and information

WEEK TWO DATE: ………………

TOPIC: THE ART OF INFORMATION PROCESSING.
DEFINITION
Information processing is the acquisition, recording, organization, retrieval, and
dissemination of information.
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Name: ____________________________________________________________ Class: _________________

It refers to the manipulation of digitized information by computers and other digital

electronic equipments known as Information Technology (IT).
Information processing systems include business software, operating systems, computers,
networks and mainframe. A computer information processor processes information to
produce understandable results.

This processing includes the acquisition of information, recording, assembling, retrieval or

dissemination of information. For example, in printing a text file, an information processor
works to translate and format the digital information for printed form.
Procedure for Information Processing
Collation of information
Organization of information
Analysis of information
Interpretation of information
Collation of Information: This is to gather information together, examine it carefully, and
compare it with other information to find any differences. It is the assembling of written
information into a standard order. Collation differs from classification. Classification is
concerned with arranging information into logical categories.
Information can be gathered through the following:
internal ii. external
Internal information: Is gotten within an organization e.g about production performance,
sales performance, standard operating procedures and manufacturing systems etc.
External Information: The information gotten from outside the organization e.g information
about customers and markets.

Organization of information: it refers to the standard protocols by which information is

arranged. Data can be organized in various ways. The processes of organizing data include
both electronic and non-electronic forms.
Ways of Organizing Information
Category: Using similarity and relatedness to classify information.
Time: We can categorize information using time or when time based sequence is important
to the information.
Location: It is another way of organizing information most especially when information
relates to a geographical place.
Alphabet: Alphabet can also be used in sorting information. It is the arrangement of
information in an alphabetical order.
Continuum: This is used when comparing things across a common measure; highest to
lowest. Best to worst. First to last etc.

EVALUATION
Define Information transmission.
List TWO procedures for information processing.
Analysis of information: Is a process of inspecting, cleaning, transforming, and modeling
data with the goal of highlighting useful information, suggesting conclusions and supporting
decision making. Information can then be analyzed by using computers or manual methods.
Information analysis will be very easy using database and spreadsheets.

Process of Analysis Information

Skim Scan
Determine accuracy, relevance and reliability of information.
Differentiate
Identify propaganda, bias etc.
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Name: ____________________________________________________________ Class: _________________
Recognize omissions and faulty logic.
Recognize interrelationships.

Interpretation of information: Is the process through which organizations make sense of

new information that they have acquired and disseminated.
Advantages of using computers for Information Processing
Tasks can be completed faster.
Large amounts of data can be processed by computers having error-free results.
Ability to store enormous amounts of data for future use.
The high reliability of components inside modern computers enables computers to produce
consistent results.
Efficiency and productivity can rise.
Running cost becomes lower in the long run.
Tasks can be completed with little human intervention.
Overall security can be raised due to less human intervention.
Customer services can be improved due to more efficiently management and operations.
Sharing of data among computers makes communication possible.
Disadvantages of using computers for Information Processing
Initial investment cost can be high.
Extra cost is required to employ specialized staff to operate and design the data processing
system.
Some jobs may be lost due to computerization and thus lower the morale of staff members.
Training and retraining of staff is required.
Face to face interactions among staff may be reduced.

GENERAL EVALUATION
State the difference between collation and classification of information.
Give any three kinds of information that may be gotten from external.
List two advantages and disadvantages of information processing.
What is interpretation of information?

READING ASSIGNMENT
Hiit @ schools data processing for senior secondary education, pgs 19-21.

WEEKEND ASSIGNMENT
……… is the acquisition, recording, organization, retrieval, display and dissemination of
information. A. Data processing B. Information processing C. Operating system D.
DBMS
There are …...... kinds of procedure for information processing. A. 4 B. 5 C. 3 D. 2
One of these is NOT a way of organizing information. A. Time B. Location
C. Distance D. Alphabet
…….. is a process of inspecting and modeling data. A. Collation B. Analysis
C. Interpretation of information D. All of the above
………. is the manipulation of digitized information by computers and other digital
electronic equipments. A. Data processing B. Information processing
C. Organization of information. D. Collation of information.

THEORY
Give any two definition of information processing.
List four advantages and disadvantages of using computers for information processing.

WEEK THREE DATE: ……………

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Name: ____________________________________________________________ Class: _________________
TOPIC: PROCESS OF INFORMATION TRANSMISSION CONTENT.
INTRODUCTION
Information is an important tool for decision making in any organization. The type of
information gotten and the method or mode of disseminating this information will determine
the effectiveness and productivity of any organization or individual. Therefore information
transmission is the process of sending and receiving information from one place to another at
a particular point in time. It is the transfer of information from one the source to a destination
through communication media or gadgets.

Sources of Information Transmission:

We have two sources of information, namely
Ancient source of information
Modern source of information

Ancient source of information are methods of transmitting information from person to

person and from one place to another at a particular time. Examples of Ancient source of
information transmission are:
Town criers
Metal gong beating
Fire lighting
Flags or flashing lights
Bind
Drum
Smoke
Story telling

Modern Information Transmission: Technology has brought about changes and an

improved system of information transmission through the use of electronic devices.
Newspaper as a mean of information transmission

EVALUATION
List the TWO methods of information transmission.
Explain one of the TWO methods listed.

Advantages of Wireless Communication

Communication has enhanced convey of the information quickly to the consumers.
Working professionals can work and access internet anywhere and anytime without
carrying cables or wires wherever they go.
Doctors, Workers and other professionals working in remote areas can be in touch
with medical centres through wireless communication.
Urgent situation can be alerted through wireless communication.
It is cheaper to install and maintain.

Disadvantages of Wireless Communication

Unlimited security threats.
Risk of information loss.
Need for strong security protocols.

CABLE: Cable used for information transmission is Fiber-optics, also called OPTICAL
FIBER, is a technology that allows light to travel along thin glass or plastic wires.

FIBER-OPTIC COMMUNICATION: is a method of information transmission from one

place to another by sending pulses of light through an optical fiber.
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Name: ____________________________________________________________ Class: _________________

CLASSIFICATION OF THE MEANS OF TRANSMITTING INFORMATION

Electronic means of information transmission
Fax Machine: It is a technology that sends copies of documents over the telephone
lines. It is an example of digital communication system.
Telephone/ Mobile Phone: Telephone and mobiles are most commonly used means
of communication. They are not only very fast but also link far distant locations
within no time.
Telegraphy: Is a communication system in which information over a wire through a
series of electrical current pulse, usually in the form of morse code.
Television: News and entertainment programmes are broadcasted on television.
Television can broadcast both audio and video communication.
Radio: News and entertainment programmes are broadcasted on radio. Radio can be
used only for broadcasting the audio messages to a large audience.
Satellite: Artificial satellites are used to communicate with very distant locations.
They are used to live-telecast matches and programmes worldwide.
Internet: This is very cheap and reliable means of not only for communication but
also useful for employment and education.
Non – electronic means of information transmission: they include Drums, Metal gong,
Animal Signs, Horn, Fire lighting etc.

GENERAL EVALUATION
Differentiate between Electronic and Non – electronic means.
State the advantages of wireless communication.
List its disadvantages.
Explain any four types of non – electronic information transmission.

READING ASSIGNMENT
Hiit @ Schools, Data Processing for Senior Secondary Education, pgs 25 – 29.

WEEKEND ASSIGNMENT
There are ………. types of information transmission medium. A. 5 B. 3 C. 4 D. 2
………. type of information transmission medium is known as space communication.
A. Wireless B. Cable C. Sallie D. None of the above
…….. is an audio – visual transmission medium. A. Radio B. Television C. Telegraph
D. Internet
There are …….. classification of information transmission. A. 2 B. 4 C. 5 D. 6
One of these is an example of non-electronic information transmission medium.
A. Television B. Animal C. Internet D. Satellite

THEORY
State any FOUR advantages of wireless communication.
Mention THREE disadvantages of wireless communication

WEEK FOUR DATE: ………………

TOPIC:METHODS OF TRANSMITTING INFORMATION RADIO
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Name: ____________________________________________________________ Class: _________________
In 1894, the young Italian inventor Guglielmo Marconi began working on the idea of
building a commercial wireless telegraphy system based on the use of Hertzian waves (radio
waves).

By August 1895, Marconi was field testing his system but even with improvements, he was
only able to transmit signals up to one-half mile.

In 1897, he established a radio station on the isle of Wight, England.

In summary, Radio is a means of transmitting information over a long distance; most
especially rural areas have access to information transmitted over the radio.
It is all about sending audio messages over a long distance using electromagnetic wave.

TELEVISION
Television is used to transmit both visual and audio messages to large audience over a far
distance.

Electronic television was first successfully demonstrated in San Francisco on Sept, 7th, 1927.

The system was designed by Philo Taylor Famsworth, a 21year old inventor who had lived in
a house without electricity until he was 14. While still in high School, Famsworth had begun
to conceive of system that could be coded onto radio waves and then transformed back into a
picture on a screen.

There was also a mechanical television system, which scanned images using a rotating disk
with holes arranged in a spiral pattern, had been demonstrated by John Logie.
In summary, Famsworth scanned images with a beam of electrons while John Logie
developed a mechanical television.

Television is audio – visual electronic used to transmit both the audio messages and images.

GENERATION EVALUATION
How can Radio and Television be used as media of information transmission?
Differentiate between Radio and Television.

READING ASSIGNMENT
Surfing the internet to know more on radio and Television,
Hiit @ Schools Data Processing for Senior Secondary Education, pg 23.

WEEKEND ASSIGNMENT
………. is used to transmit audio messages. A. Radio B. Newspaper C. Television D.
Typewriter
……….. is used to transmit both audio and visual messages to the audience. A. Radio B.
Newspaper C. Television D. Typewriter
Radio uses ………. to transmit its content. A. Air B. Electromagnetic wave
C. Magnetism D. Hydro
Radio was invented by ……… A. Blaize Pascal B. Guglielmo Marconi C. Joseph
Jacquard D. John Logie
One of the inventors of Television is …… A. Famsworth B. G. Marconi C. Blaize Pascal
D. None of the above

THEORY
List any other THREE examples of modern information transmission.
Mention Four ancient methods of information transmission.
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Name: ____________________________________________________________ Class: _________________

WEEK 5 DATE: ……………

TOPIC: MEDIUM OF INFORMATION TRANSMISSION
Types of Information Transmission, namely:
Satellite
Wireless
Cable

SATELLITE: In satellite communication, signal transferring between the sender and

receiver is done with the help of satellite. In this process, the signal which is a beam of
modulated microwaves is sent towards the satellite. Then the satellite amplifies the signal and
sent it back to the receiver’s antenna present on the earth surface. All the signal transferring is
happening in the space. Thus, this type of communication is known as SPACE
COMMUNICATION.

EVALUATION
State the three types of information transmission.
What are the means of transferring information?

WIRELESS: Wireless communication involves the transmission of information over a

distance without the help of wires, cables or any other forms of electrical conductors. The
transmitted distance can be anywhere between a few meters ( e.g a television’s remote
control) and thousands of kilometers (e.g radio communication).
Devices used for Wireless Communication
Cordless telephones
Mobiles
GPS Units
Wireless computer parts
Satellite

CABLE: Cable used for information transmission is Fiber-optics, also called OPTICAL
FIBER.
It is a technology that allows light to travel along thin glass or plastic wires. This type of
cable is used most commonly in the communication industry, because digital information can
be converted into light pulses that move along the length of the wire. Examples of the kinds
of information that can pass through a fiber-optic cable are : Telephone calls, the internet and
television.
Means of transmitting information
Fax Machine
Mobile Phone
Telegraph
Television
Radio
Satellite
Internet

GENERAL EVALUATION
What is information transmission?
Explain modern method information transmission.
Explain space communication.
State the differences between the modern and ancient methods of information transmission.
READING ASSIGNMENT
2ND TERM/DATA PROCESSING Page 8
Name: ____________________________________________________________ Class: _________________
Hiit @ Schools, Data Processing for Senior Secondary Education, pgs 25 -29.

WEEKEND ASSIGNMENT
There are ……… types of information transmission. A. 3 B. 6 C. 2 D. 5
The type of communication satellite uses is called …….. A. Satellite communication B.
Space communication C. Wireless communication D. Cable communication
There is need for ……… in satellite communication so as to allow the receiver to receives
signal. A. Battery B. Antenna C. Cable D. Printer
The following are devices used for wireless communication except. A. Phone
B. Satellite TV C. Typewriter D. Wireless computer parts
Example of the kind of information that can pass through a fiber - optic cable is.
A. Processed information B. Telephone calls C. Dissemination D. None of
the above

THEORY
State the types of information transmission.
Write short notes on types of information transmission.

WEEK SIX DATE: ………………

TOPIC: COMPUTER ETHICS
Ethics are set of moral principles that govern the behavior of a group or an individual.
Therefore, computer ethics are set of moral principles that regulate the use of computers.
Some common issues of computer ethics include intellectual property rights (such as
copyrighted electronic content); piracy concerns, and how computers affect society. For
instance, while it is easy to duplicate copyrighted Content, computer ethics would suggest
that it is wrong to do so without the author’s approval. It may be possible to access someone’s
personal information on a computer system; computer ethics would advice that such an action
is unethical.

As technology advances, computers continue to have a greater impact on society. Therefore,

computer ethics promotes the discussion of how much influence computers should have in
areas such as artificial intelligence and human communication in nutshell, computer ethics
creates ethical standard that addresses new issues caused by new technologies

EVALUATION
What is ethics?
Define computer ethics

Computer Room Management Ethics

Maintenance and dust free environment
Appropriate ventilation
Appropriate lighting system
Setting computer before the students come in

Below are suggested rules and regulations for computer laboratory users.
Pupil are prohibited to enter the lab unless authorized by the teacher
Scan diskettes before using them
Report all problems related to the system to the teacher.
Do not attempt to repair or tamper with lab equipment
Be responsible when using equipment, software and Facilities in the lab
Do not remove or load software into the computer
Do not change the settings in the computer
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Name: ____________________________________________________________ Class: _________________
Do not bring in bags, food and drink in to the lab
Turn off the computer accordingly after use
The lab should be kept clean and tidy at all time.

GENERAL EVALUATION
Define ethics.
What is computer ethics?
Give two instances of using computer in an unethical way.
List four ways of misusing computers.
List four proper ways of using computer.

READING ASSIGNMENT
Hiit@ Schools, Data Processing for Senior Secondary Education, pgs 50 – 51.

WEEKEND ASSIGNMENT
……….. refers to the set of moral principles that regulate the use of computer.
A. Safety measure B. Computer Ethics C. Computer Software D. Computer
Hardware
Duplicating copyrighted electronic content is ………. A. Ethical B. Unethical
C. Moral D. All of the above
The lab should be kept ………… at all time. A. Covered B. Clean C. Pure D.
None of the above
One of these is a computer room management ethic. A. Ventilation B. Operating
system C. Formatting D. Editing
To protect computer, all ……… need to be scanned before using them. A. Chairs B.
Diskettes C. Printer D. None of the above

THEORY
List three proper ways of using computer.
Explain the four computer room management.

WEEK SEVEN DATE: ………………

TOPIC: SAFETY MEASURES
The computer lab is a place where students learn practical uses of a computer, such as
programming, how to use a spreadsheet program etc. There are safety rules that need to be
applied in a computer lab that protect students and the computers themselves.

Protecting a computer consists of the following:

Unwanted programs from installation.
Unauthorized users from spying on private data and accidental visits to dangerous
networks that contain viruses and spyware.
In a nutshell, safety measures of computer are about keeping computers from things that can
render it useless.

SAFETY MEASURES FOR COMPUTER USERS

Due to ever increasing usage of computers, it is important for computer users to protect
themselves against any hazard.
The following are safety measures that will safeguard the computer users:
Blink your eyebrows to reduce dryness.
The top of your eyebrows should be leveled with the top of the screen.
Adjust the chair setting to adapt your body for the proper height and lumbar support.
Shake your hands periodically when typing for a long periods of time.
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Name: ____________________________________________________________ Class: _________________
Reduce the need to reach for items by moving frequently used things such as
telephones and files closer.
Take frequent short breaks when performing repetitive tasks.

EVALUATION
Define safety measures.
State any four safety measures for computer users.

SAFETY RULES IN THE COMPUTER LABORATORY

Surge Protectors: A surge protector is used to protect computer from electrical
surges that can damage components and destroy important information.
Static Mat: Place every laboratory computer on static mat.
Moving Equipment: When moving components within the lab, be sure to look out for
cables on the floor to avoid tripping.
Liquids: Keep all liquids Away from computers and electrical equipment in the lab.
Personal Information: A computer laboratory is not the place for students to enter
their personal information on websites.

GENERAL EVALUATION
What are computer safety measures?
Why safety measures for computers (why is it important)?
Mention five ways to protect computer users.
List and explain four safety rules in the computer laboratory.

READING ASSIGNMENT
Hiit @ Schools, Data Processing for Senior Secondary Education, pgs 52 - 53.

WEEKEND ASSIGNMENT
………. is a place where students learn practical uses of a computer. A. Biology lab
B. Chemistry lab C. Computer lab D. Computer village
Safety measures are needed to protect computer against ……… A. Professionalism
B. Expertise C. Hazard D. All of the above
Our computers need to be protected against …… A. Antivirus B. Virus C. Computer
Efficiency D. All of the above
Students need to look for cables in the computer lab to avoid …….. A. Connection
B. Tripping C. Electrocution D. All of the above
Spilling liquids on computer can cause ………. A. Effectiveness B. Dust – free
C. Electrical fire D. Tripping

THEORY
State four safety measures for computer users.
List five safety rules in the computer lab.
WEEK EIGHT DATE: ………………
TOPIC: OPERATING SYSTEM
An operating system, or “OS”, is software that communicates with the hardware and allows
other programs to run. An operating system is a software that manages the computer
hardware and provides common services for execution of various application software
operating system acts as an intermediary between application programs and the computer
hardware. An operating system is the program that after being loaded into the computer by a
boot program, manages all the other programs in a computer.

OBJECT OF OPERATING SYSTEM

Convenience: makes computer user friendly.
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Name: ____________________________________________________________ Class: _________________
Efficiency: allows computer to use resources efficiently.
Ability to evolve: Constructed in a way to permit effective development, testing and
introduction of new functions without interfering with service.

EVALUATION:
Define operating system
Mention the objectives of OS.

TYPES OF OPERATING SYSTEM

Single user operating system
Multi – user operating system
Multi – tasking operating system
Distributed operating system
Batch processing operating system
Real – time operating system
Command based OS
Network operating system
GUI

Single – User Operating System: A single user operating system is an operating

system that is designed to manage the computer resource and allocates them to one
user. Examples are MS – DOS, Some versions of windows operating system etc.
Multi – User Operating System: is an operating system that allows access by
multiple users of a computer. This operating system allows more than one user to run
several programs at the same time. The process of running more than one program
concurrently or at the same time is known as multiprogramming. Examples are :
UNIX, XENIX etc.
Multi – Tasking Operating System: this type of OS, several application maybe
simultaneously loaded and used in the memory.
While the processor handles only one application at a particular time, it is capable of
switching between the applications effectively to apparently execute each application.
Examples are all windows operating system.
Distributed Operating System: In a distributed system, software and data may be
distributed around the system, programs and files may be stored on different storage
devices which are located in different geographical locations and maybe accessed
from different computer terminals.
Batch Processing Operating System: In a batch process operating system,
interaction between the user and processor is limited or there is no interaction at all
during the execution of work. Data and programs that need to be processed are
bundled and collected as a “batch” and executed together. Batch processing operating
systems are ideal in situation where:
There are large amounts of data to be processed.
Similar processing is involved when executing the data.

Real – Time Operating System: A real time OS processes inputs simultaneously,

fast enough to affect the next input or process. It is used to control complex systems
that require a lot of processing like machinery and industrial systems.
Dos: It is operating system software used in most computers that provides the
abstraction and management of secondary storage devices and the information on
them.
GUI (Graphical User Interface): operating systems of this class have interactive
features which make them user friendly, easier to use, etc. examples are: Ms
Windows, Linus etc.
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Name: ____________________________________________________________ Class: _________________
Network Operating System: A network operating systems links computers and users
together to share resources and communicate with one another. Common examples
includes: windows NT, Windows server 2003 etc.

In summary, operating system can be categorized into two, namely:

Command based operating system.
Graphical user interface (GUI)
Each of the types of operating system either falls under command based operating system or
Graphical user interface (GUI).

GENERAL EVALUATION
List the types of operating system.
What is operating system?
Differentiate between command based operating system and GUI
What do you understand by batch processing operating system?
State the objectives of OS.

READING ASSIGNMENT
HIIT (a) School Data processing for senior secondary Education, pages 30 – 32.

WEEKEND ASSIGNMENT
Types of operating system can be categorized into ………… A. 4 B. 2 C. 3 D. 7
………. type of OS processes input simultaneously. A. Dos B. Real – time C. GUI
D. Single – user OS
The operating system fits for computer networking is ……… A. Single user B. multi
user C. Real – time D. Batch processing
………helps us in loading programs into the computer. A. Hardware B. software
C. Operating system D. DBMS
Example of the command based operating system is ………. A. Single – user
B. GUI C. Dos D. Batch processing

THEORY
What is operating system?
List various types of

WEEK NINE DATE: ………………

TOPIC: EXAMPLES OF OPERATING SYSTEM
Common examples of operating system
Ms Windows (Microsoft window): It is a single user GUI operating system. That is, only
one person can use the system at a time.
Versions of windows operating system:
Windows 95
Windows 98
Windows 2000
Windows ME ( millennium edition)
Windows XP ( Experience)
Windows NT ( New Technology)
Windows Vista
Windows 7
Windows 8
Windows 10
UNIX ( A multiuser command line operating system)
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Name: ____________________________________________________________ Class: _________________
Novell Netware (is a command line Network Operating System)
Linux: A GUI/ Command li ne multiuser and network operating system.
XENIX: A Unix based multiuser operating system.
MS DOS ( Microsoft Disk operating system): This is a single user operating system.

EVALUATION:
Mention Eight versions of windows operating system.
What is the full meaning of GUI?

GENERAL EVALUATION :
State the full meaning of : Windows XP, Windows NT.
What is the difference between GUI and Command based operating system?
Mention the latest version of windows operating system.
The full meaning of Ms DOS is ………

READING ASSIGNMENT
Hiit @ Schools Data Processing for Senior Secondary Education, pg 27.

WEEKEND ASSIGNMENT
Windows ME stands for ……. A. More experience B. Millennium Edition C. More
Millennium D. None of the above
In windows NT, NT there stands for ………. A. New technology B. New Technical C.
Now Technology D. Non Technology
‘XP’ in windows XP stands for ………. A. Professional B. Exceptional C. Experience
D. Expert
DOS stands for ……… A. Disk operating system B. Do operating system C. Disk open
system D. Diskette operating system
……… is an example of windows command line operating system. A. Novell B. Ms
DOS C. Linux D. XENIX

THEORY
List the different versions of windows operating system.
Give any two examples of GUI/Command line multiuser operating system.

WEEK TEN DATE: ………………

TOPIC: FUNCTIONS OF OPERATING SYSTEM
Operating system performs the following functions:
Storage Management: Operating system also controls all the storage operations. This
means how the data or files will be stored intro the computers and how the file will be
accessed by the users etc. Creation of files, Directories. Basically, operating system
performs the following :
It allows creation of files and directories.
It allows the reading of data from and writing of data to files and directories.
It copies the contents of the files and directories from one place to another.

Process Management: The operating system also treats the process management.
That is, it is the duty of operating system to handle processes given it by the users; the
system own process as well.
Memory Management: It manages the sharing of internal memory among multiple
applications. E.g Primary Memory : RAM , ROM ; Secondary Memory : Hard disc,
CD, DVD etc.

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Name: ____________________________________________________________ Class: _________________
Resources Management: Operating system manages all the resources of the
computer system. Both the hardware ( Input, Output and Peripheral) and the software
resources.
Security Management: these include: Virus management, Alert messages,
passwords, Access protection etc.
Load and run application software: the operating system determines which
application should run in what order and how much time should be allowed for each
application before giving another application a turn.

EVALUATION
Define operating system.
State six functions of operating system.

GENERAL EVALUATION:
What is operating system?
List functions of operating system.
What do you understand by memory management?
Without operating system, what would happen to a computer?

READING ASSIGNMENT
Hiit @ Schools, Data Processing for Senior Secondary Education, pgs 31 – 32.

WEEKEND ASSIGNMENT
Which function of operating system deals with the creation of files and directories. A.
Memory management B. Resources management C. Storage management D. All of the
above
Control of the right and access to file is ……… function of O.S. A. Memory management
B. Resources management C. Storage management D. Process management
……… handles processes in computer. A. DBMS B. O.S C. Software D. Hardware
The …….. part of a computer is synchronized to perform tasks. A. Monitor B. Keyboard
C. CPU D. System unit
The hardware part of computer has ……… A. 2 B. 3 C. 5 D. 7

THEORY
Explain the security management functions of operating system.
Mention four examples of secondary memory.

2ND TERM/DATA PROCESSING Page 15