This document classifies and describes different types of computers. It discusses analog computers, which provide continuous outputs based on physical inputs like temperature or pressure. It then covers digital computers, which represent inputs and outputs numerically. Microcomputers are the smallest systems, including PCs, notebooks, and tablets. Mini computers are multi-user systems less powerful than mainframes. Mainframes offer high-speed processing and storage and function as central servers. Supercomputers, the most powerful and expensive, contain multiple parallel CPUs for tasks like weather modeling. The document also categorizes different forms of digital computers like desktops, workstations, notebooks, tablets, handhelds, and smartphones.

1. TYPES OF
COMPUTERS

2. Classification of computerClassification of computer
Type of computer
Digital computer Analog computer Hybrid Computer
Micro Computer
Main frame
Computer
Super Computer
Home PC
Mini Computer

3. Analog computerAnalog computer
Analog computer measures and answer the
questions by the method of “HOW MUCH”. The
input data is not a number infect a physical
quantity like tem, pressure, speed, velocity.
 Signals are continuous of (0 to 10 V)
 Used in Gun fire control in World War II
 The development of transistors made electronic
analog computers practical
 Accuracy 1% Approximately
 High speed
 Output is continuous
 Time is wasted in transmission time

4. Analog computerAnalog computer

5. Digital ComputersDigital Computers
Digital computer counts and answer the questions
by the method of “HOW Many”. The input data is
represented by a number. These are used for
the logical and arithmetic operations.
 Signals are two level of (0 V or 5 V)
 Accuracy unlimited
 low speed sequential as well as parallel
processing
 Output is continuous but obtain when
computation is completed.

6. Digital computer

7. Micro ComputerMicro Computer
Micro computer are the smallest computerMicro computer are the smallest computer
system. There size range from calculatorsystem. There size range from calculator
to desktop size. Its CPU isto desktop size. Its CPU is
microprocessor. It also known as Grandmicroprocessor. It also known as Grand
child Computer.child Computer.
Application : - personal computer, MultiApplication : - personal computer, Multi
user system, offices.user system, offices.
They are of two typesThey are of two types
Desktop computersDesktop computers
Notebook computersNotebook computers

8. Desktop computers Notebook computersDesktop computers Notebook computers

9. Mini ComputerMini Computer
These are also small general purpose system.These are also small general purpose system.
They are generally more powerful and mostThey are generally more powerful and most
useful as compared to micro computer. It is auseful as compared to micro computer. It is a
multi-user computer that is less powerful thanmulti-user computer that is less powerful than
mainframe computer. Mini computer are alsomainframe computer. Mini computer are also
known as mid range computer or Childknown as mid range computer or Child
computer.computer.
 Application :- Departmental systems, NetworkApplication :- Departmental systems, Network
Servers, work group system.Servers, work group system.
 available in the 1960’s when large scaleavailable in the 1960’s when large scale
integrated circuitsintegrated circuits are introduced

10. Mini computerMini computer

11. Main Frame ComputerMain Frame Computer
Mainframe computers are those computers thatMainframe computers are those computers that
offer faster processing and grater storage area.offer faster processing and grater storage area.
The word “main frame” comes from the metalThe word “main frame” comes from the metal
frames. It is also known as Father computer.frames. It is also known as Father computer.
 Application – Host computer, Central data baseApplication – Host computer, Central data base
server.server.
 Mainframes are also now being used as high-Mainframes are also now being used as high-
capacity server computers for networks withcapacity server computers for networks with
many client workstations or for serving files overmany client workstations or for serving files over
the Internet.the Internet.

12. Mainframe computer

13. Super ComputerSuper Computer
 Super computer are those computer which areSuper computer are those computer which are
designed for scientific job like whetherdesigned for scientific job like whether
forecasting and artificial intelligence etc. Theyforecasting and artificial intelligence etc. They
are fastest and expensive. A super computerare fastest and expensive. A super computer
contains a number of CPU which operate incontains a number of CPU which operate in
parallel to make it faster. It also known as grandparallel to make it faster. It also known as grand
father computer.father computer.
 Application – whether forecasting, weaponsApplication – whether forecasting, weapons
research and development.research and development.

14. Super computerSuper computer

15. Classification of Digital computerClassification of Digital computer
DesktopDesktop
WorkstationWorkstation
NotebookNotebook
Tablet PCTablet PC
Handheld computerHandheld computer
Smart PhoneSmart Phone

16. workstationworkstation

17. Tablet PCTablet PC

18. Handheld PC ( Personal DigitalHandheld PC ( Personal Digital
Assistant )Assistant )

19. Smart phoneSmart phone