2. The proliferation of the microcomputer in the market, as well
as the school has virtually made it accessible to everyone.
Today, software games are available and youngster learn to
operate computers and appreciate games they can play
through a computer, however, computers can be effective
devices in other areas of human endeavor, e.g., business and
industry, science and technology and educational institutions.
3. A computer is a mechanical or
electro apparatus capable of carrying out
to repetitions and highly complex
mathematical operations at higher speed,
within its central processing unit, based
on the set of program instructions and
produces results in the form of
meaningful and useful output. The use of
computers is influential almost in every
facet of human modern life.
4.
5. 1. A computer is an electronically apparatus
and performs its functions and achieves
results through electronic impulses and not
through the physical movement of its
internal parts.
2. A computer as an internal storage system
and has ability to store simultaneously
program instruction and data.
6. 3. A computer can store program and allows
a pattern of statements in its internal
storage which instruct it in detail on
specific operations to perform and the
order in which to perform them.
4. A computer has a program execution
modification and change the course of
execution of program statements.
7.
8. 1. To perform operation in a fast, perfect,
reliable and accurate manner.
2. To store and recall information.
3. To perform arithmetic and logical
operations-add, subtract, divide and
multiply as well as determine whether a
number is positive, negative or zero.
9. 4. To compare two numbers and decide
whether one variable is greater than, equal
to, or less than to the other variable.
5. To handle large volumes of repetitive
tasks accurately over long period of time.
6. To communicate with its operators and
with other computers.
10. 7. To detect errors and perform
decisions.
8. To process one job at a time or several
job almost simultaneously.
11.
12. A.Purpose
1.General Purpose Computer
These can handle various application jobs; e.g.
payroll preparations, inventory control,
accounting and auditing and other institutional
problems. These types of computers are very
versatile but quite slow in speed and less
efficient.
13. 2. Special Purpose Computer
These are designed to handle special
types job. They are specifically designed
and used in traffic control management,
airline reservations, industrial process
control and satellite tracking. These
computer are highly sophisticated and are
designed exclusively for a specialized
type of task.
14. B. Type of Data Handled
1. Analog Computers
Are used in handling and dealing with
continuously changing physical data such as
current, pressure and temperature.
15. 2. Digital Computer
These computers are readily adapted to
business data processing application in as
much as they specialized in counting and
provide 100 percent accuracy arithmetic
operations.
3. Hybrid Computer
These computers combine both the analog
and digital features and are used in specific
types of problems in science and engineering.
16. C. Capacity
1. Microcomputers
These computers are also called “single-chip”
processor. This computer is a digital
computer system under the control of a
stored program that uses a microprocessor,
a programmable read only memory (ROM).
2. Minicomputers
These types of computers are products of
the miniaturization revolution and most
talked about computer system in the
industry.
17. 3. Medium-sized Computers
These computers can provide greater speed
and larger memory capacity than the
microcomputer and mini-computers and is
capable of furnishing high-speed input-output
devices efficient data handling.
4. Large-scale Computers
These computers are very expensive but
valuable to big firms that handle hundreds
of thousands of customer accounts every
day.
18. 5. Super Computer
This computer is the biggest and fastest
model in which can handle numerical
computation at a high speed up to fifty
million operations per second.
