COMPUTER SCIENCE
This is the study of computers including their design and how they are operated
Definition of the term computer
A computer can simply be defined as a machine which simplifies work than a man can. This is
the layman’s definition.
Technically, a computer is an electronic device that receives, processes, stores data and outputs
information.
A computer can also be defined as a general purpose machine which can receive, store process
data and output information.
It is the processing machine or device made up of electronic and electro-mechanical components
that can perform computations including arithmetic and operations.
It is an electronic device capable of interpreting and executing programmed commands for input,
output computation and logical operations.
A computer is an electronic programmable device that receives, stores, processes data and output
information.
Note:
Data refers to the raw facts of input by the user (a person operating a computer) into the
computer.
Information refers to the processed facts of output by the computer to the user for the purpose of
decision making or record keeping.
Why we study computer studies in schools
To widen our reasoning and thinking capacities
To develop in students an appreciation of the range and power of computer
applications
To develop an understanding and practical experience of the computer system
To provide students with the basic knowledge and skills required for computer
use
To develop a desire (need) to use computer within other interests like games
To develop an understanding of the organization of computer system such as
computer software, hardware and communication.
Reasons for studying computers
1. To attain knowledge for problem solving.
2. To acquire critical and analytical thinking for prove (hands-on) solutions.
3. To get awareness about ICT developments (emerging issues) in the world.
4. To get jobs. There are specialized computer skills which are in high demand and once
you acquire these specific skills you will be able to get an outstanding paying job fairly
easily.
, 5. To acquire skills in the use of IT for enhanced productivity & development.
6. It makes work easier and faster
7. It helps organizations to store huge amount of data. Therefore studying it is important
in order to know how storing data is done, Thus making data analysis easy.
8. Computers serve as an important part in the world of communications. Thus we should
learn how to use computers in order to avail the applications it has.
9. One of the main reasons to study computers is to get money. There is lots of money in
computers. For example there are specialized computer skills which are in high demand
and once you acquire these specific skills you will be able to get an outstanding paying
job fairly easily.
10. Self employment: Another benefit of studying computers is that you can become self
employed. This means that you can use computers to offer services to people who will in
turn pay you.
11. Computers keep us up to date because the nature of computers and technology keep
advancing and changing. This forces you to keep on building your knowledge for the rest
of your life. And in doing so, if you meet the needs on the market then you will always be
able to find a job and will hopefully never be in too much of a financial crisis.
Others
To get employment opportunities in future
To get first hand information around the world
To answer questions about computer in an exam
ADVANTAGES OF COMPUTERS:
1. Speed: A Computer can perform a lot of work in a short time.
2. Accuracy and consistency: If a Computer is properly programmed, it can hardly make
a mistake.
3. Reliability: Computers are very reliable as tools of data processing. They can do the
same task over and over again without making a machine processing error
4. Safe storage: Computers are equipped with a lot of memory that helps them to Store
data safely.
5. Performs Variety of tasks: A Computer can do a variety of tasks like giving
entertainment, film shows, telephone, and Communication service etc.
6. A Computer makes data less bulky. Since large volumes of data can be stored on
magnetic disks as tinny Electromagnetic particles thus saving people from piling files and
files of papers.
7. A Computer stores data for retrieval: (Receives) Stores and brings back). This enables
one to use data for future references.
8. A Computer prints out neat work.
9. A Computer is economical to use i.e. it requires less manpower.
10. They help in breaking boredom since one can access many games using computers.
Advantages of computers
This is the study of computers including their design and how they are operated
Definition of the term computer
A computer can simply be defined as a machine which simplifies work than a man can. This is
the layman’s definition.
Technically, a computer is an electronic device that receives, processes, stores data and outputs
information.
A computer can also be defined as a general purpose machine which can receive, store process
data and output information.
It is the processing machine or device made up of electronic and electro-mechanical components
that can perform computations including arithmetic and operations.
It is an electronic device capable of interpreting and executing programmed commands for input,
output computation and logical operations.
A computer is an electronic programmable device that receives, stores, processes data and output
information.
Note:
Data refers to the raw facts of input by the user (a person operating a computer) into the
computer.
Information refers to the processed facts of output by the computer to the user for the purpose of
decision making or record keeping.
Why we study computer studies in schools
To widen our reasoning and thinking capacities
To develop in students an appreciation of the range and power of computer
applications
To develop an understanding and practical experience of the computer system
To provide students with the basic knowledge and skills required for computer
use
To develop a desire (need) to use computer within other interests like games
To develop an understanding of the organization of computer system such as
computer software, hardware and communication.
Reasons for studying computers
1. To attain knowledge for problem solving.
2. To acquire critical and analytical thinking for prove (hands-on) solutions.
3. To get awareness about ICT developments (emerging issues) in the world.
4. To get jobs. There are specialized computer skills which are in high demand and once
you acquire these specific skills you will be able to get an outstanding paying job fairly
easily.
, 5. To acquire skills in the use of IT for enhanced productivity & development.
6. It makes work easier and faster
7. It helps organizations to store huge amount of data. Therefore studying it is important
in order to know how storing data is done, Thus making data analysis easy.
8. Computers serve as an important part in the world of communications. Thus we should
learn how to use computers in order to avail the applications it has.
9. One of the main reasons to study computers is to get money. There is lots of money in
computers. For example there are specialized computer skills which are in high demand
and once you acquire these specific skills you will be able to get an outstanding paying
job fairly easily.
10. Self employment: Another benefit of studying computers is that you can become self
employed. This means that you can use computers to offer services to people who will in
turn pay you.
11. Computers keep us up to date because the nature of computers and technology keep
advancing and changing. This forces you to keep on building your knowledge for the rest
of your life. And in doing so, if you meet the needs on the market then you will always be
able to find a job and will hopefully never be in too much of a financial crisis.
Others
To get employment opportunities in future
To get first hand information around the world
To answer questions about computer in an exam
ADVANTAGES OF COMPUTERS:
1. Speed: A Computer can perform a lot of work in a short time.
2. Accuracy and consistency: If a Computer is properly programmed, it can hardly make
a mistake.
3. Reliability: Computers are very reliable as tools of data processing. They can do the
same task over and over again without making a machine processing error
4. Safe storage: Computers are equipped with a lot of memory that helps them to Store
data safely.
5. Performs Variety of tasks: A Computer can do a variety of tasks like giving
entertainment, film shows, telephone, and Communication service etc.
6. A Computer makes data less bulky. Since large volumes of data can be stored on
magnetic disks as tinny Electromagnetic particles thus saving people from piling files and
files of papers.
7. A Computer stores data for retrieval: (Receives) Stores and brings back). This enables
one to use data for future references.
8. A Computer prints out neat work.
9. A Computer is economical to use i.e. it requires less manpower.
10. They help in breaking boredom since one can access many games using computers.
Advantages of computers
