Use this PPT if you want to know about computer classification.

1. CLASSIFICATION OF
COMPUTERS
Submitted by Anandhu v & Akshay Shaji

2. QUESTIONS
1. How do HP manufactured and released a microcomputer in 1970?
2. What are the input devices that built in a laptop computer?
3. Which keyboard used to run tablet PC?
4. Are palm top computers and microcomputers same type of computer? Explain the
reason.
5. What are supercomputers used for?

3. CLASSIFICATION OF COMPUTERS?
Computers are classified by Size And
Capacity.
When classified according to size and
capacity, the following types
of computers can be identified.

4. TYPES OF COMPUTERS
• Micro computers or Personal Computers
• Notebook Computers or Laptop Computers
• Palmtop
• Tablet PC
• Mini Computer
• Mainframe Computers
• Super Computers

5. Micro computers or Personal Computers
• A microcomputer is a computer with a central
processing unit (CPU) as a microprocessor.
Designed for individual use, a microcomputer is
smaller than a mainframe or a minicomputer.
• In 1970, Hewlett-Packard (HP) manufactured and
released a microcomputer as a calculator with
varying levels of programmability.
• Different brands and shapes are available
• Inexpensive

6. USES OF MICROCOMPUTER
• Word Processing
• Home entertainment
• Home banking
• Printing
• Surfing the internet
• Etc..

7. NOTEBOOK COMPUTERS OR LAPTOP
COMPUTERS
• Laptop computers, also known as notebooks, are
portable computers that you can take with you and
use in different environments.
• They include a screen, keyboard, and a trackpad or
trackball, which serves as the mouse.
• Today, most laptop computers are becoming thinner
and lighter to help compete with other devices, such
as tablets. Some laptops may be also be referred to as
Ultrabooks.

8. HISTORY
• The IBM 5100 is the first portable computer, which was released on
September 1975. The computer weighed 55 pounds and had a five
inch CRT display, tape drive, 1.9 MHz PALM processor, and 64 KB of
RAM. In the picture is an ad of the IBM 5100 taken from a November
1975 issue of Scientific America.
• The first truly portable computer or laptop is considered to be
the Osborne I, which was released on April 1981 and developed by Adam
Osborne. The Osborne I weighed 24.5 pounds, had a 5-inch display, 64
KB of memory, two 5 1/4" floppy drives, ran the CP/M 2.2 operating
system, included a modem, and cost US$1,795.

9. PALMTOP
• A palmtop computer is a personal computer or other
electronic device that has many of the same features as
a computer and fits in the palm of your hand. A good
example of an early palmtop computer is the PalmPilot

10. TABLET PC
• A tablet PC is a portable PC that is a hybrid
between a personal digital assistant (PDA)
and notebook PC. Equipped with a touch
screen interface, a tablet PC usually has a
software application used to run a virtual
keyboard. However, many tablet PCs support
external keyboards.

11. MINI COMPUTER
• A minicomputer is a type of computer that
possesses most of the features and capabilities of
a large computer but is smaller in physical size.
• Minicomputers are mainly used as small or mid-
range servers operating business and scientific
applications.

12. MAINFRAME COMPUTERS
• A mainframe is an ultra high-performance computer
made for high-volume, processor-intensive
computing.
• They are mainly used by government institutions
and large companies for tasks such as census.
• It is also known as big iron.

13. SUPER COMPUTERS
• A super computer is a computer with great
speed and memory. This kind of computer can
do jobs faster than any other computer of its
generation.
• They are usually thousand of times faster
than ordinary personal computers.
• Traditionally, supercomputers have been used
for scientific and engineering applications.
• Supercomputer PARAM 8000 (made by the
Centre for Development of Advanced
Computing (C-DAC)) was launched on July 1,
1991 is considered India's first supercomputer.

14. HISTORY
• Supercomputer were introduced in the 1960s and
were designed by Seymour Cray at Control Data
Corporation(CDC), which led the market into the
1970s until Cray left to form his own company, Cray
Research.
• He then took the supercomputer market with his
new designs, holding the top spot in supercomputing
for five years(1985-1990).
• Today, supercomputers are typically designs and
produce by traditional companies such as Cray.

15. FIRST SUPERCOMPUTER
CD-6600