Charles Babbage originated the concept of the programmable computer in the early 19th century. A computer is an electronic device that can store, retrieve, and process data, allowing users to type documents, send email, play games, and browse the web. Hardware refers to the physical parts of a computer like the keyboard and mouse, while software provides instructions to tell the hardware what to do.

1. COMPUTER
By Nida Chaudhary

2. COMPUTER:
• Charles Babbage, an English mechanical engineer, originated the concept
of a programmable computer. Considered the "father of the computer", he
invented the first mechanical computer in the early 19th century.
• A computer is an electronic device that manipulates information, or data. It
can store, retrieve, and process data. You may already know that you can
use a computer to type documents, send email, play games, and browse the
Web.
Nida Chaudhary

3. CONCEPT OF HARDWARE & SOFTWARE:
let's talk about two things all computers have in common:
Hardware and Software.
• Hardware is any part of your
computer that has a physical
structure, such as the keyboard
or mouse.
• Software is any set of instructions that
tells the hardware what to do and how
to do it. Examples of software include
web browsers, games, and word
processors.
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4. TYPES OF COMPUTER:
Analogue
Computer
• Analogue
computers are
designed
to process
analogue data.
Digital
• Digital computer
is designed to
perform
calculations and
logical operations
at high speed.
Hybrid
• Hybrid computer
has features of
both analogue and
digital computer.
Fast in speed.
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5. 1. SUPERCOMPUTER
Supercomputers are the biggest and fastest computers. They are designed to process huge amount of data. A supercomputer
can process trillions of instructions in a second. It has thousands of interconnected processors.
2. MAINFRAME COMPUTER
Mainframe computers are designed to support hundreds or thousands of users simultaneously. They can support multiple programs at
the same time.
3. MINIFRAME OR MINICOMPUTER
It is a midsize multiprocessing computer. It consists of two or more processors and can support 4 to 200 users at one time.
4. WORKSTATION
Workstation is a single user computer that is designed for technical or scientific applications. It has a faster microprocessor, a large
amount of RAM.
5. MICROCOMPUTER
Microcomputer is also known as a personal computer. It is a general-purpose computer that is designed for individual
use. It has a microprocessor as a central processing unit, memory, storage area, input unit and output unit.
TYPES OF COMPUTER:
On the basis of size, the computer can be of five types:
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6. PARTS OF COMPUTER:
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