The document outlines the types and generations of computers, categorizing them into four types: micro-computers, mini-computers, mainframe computers, and super-computers. It also discusses the advancements through five generations of computers, starting from vacuum tube-based systems to modern microprocessors and artificial intelligence. Each type and generation is characterized by its purpose, capabilities, and technological evolution.

1. Title : - Types and generations of computer
NAME :-SNEHA INGOLE
E-mail :- sneha9729i@gmail.com

2.  Types of computer
 Generations of computer

3.  There are basically four types of computer as
follows:-
1. Micro-computer
2. Mini-computer
3. Mainframe-computer
4. Super-computer

4. Figure:-Micro-computer

5.  Most familiar type of computer.
 Two types:- personal computer & workstation.
1. Personal computer:-
 Personal computer whereas desktop or portable machine .
 Easy to use .
 Most affect able than both workstation.
 Micro-computer didn’t have processing power than workstation.
2. Workstation:-
 More powerful and expensive.
 Used by engineers, scientists and other professionals who proceed lots of data.
 People who needs to run complex program and display both work in program
and result gives the best when we have workstations.
 Operating system is unique that permitted that multi-tasking workstations also
used powerful networking to other computers.
 Powerful workstation - super micros
 Well known workstations are those made by SUN, OPOLO,NEXT & IBM.

6.  Also known as mid-range computers.
 Developed as special purpose mainframe computer.
 They are widely used as general purpose computer.
 More powerful mini-computer models are called super computer.
 One of the purpose of mini-computer system is the VAX made by the digital
equipments corporation.
Figure:- Mini-Computer

9.  Faster calculating device even invented a desktop micro-computer process
data and instruction in million of second.
 It is 1000 -1 million times as faster micro-computer.
 Most super computer are used by government agencies.
 Most powerful super-computer used the technology called massively in
parallel processing.
 This super –computer consists of 1000 of integrated micro processor .
 One massive parallel computer made by Intel corporation is capable of
perform 8.6 millions mathematical calculation per second.
Super-computer

10. Both the super-computer & mainframe computer looks similar. Then what
makes it different?

11. The difference is…….………
Super computers are used for large and complex mathematical
computations.
Mainframe are used as storage for large database and serve a maximum
number of users at a time.
Some of the fastest super computers operate at hundred of quadrillions of
floating point operation per second(FLOPS).

12.  There are basically five generations of computer as
follows
 First generation of computer
 Second generation of computer
 Third generation of computer
 Fourth generation of computer
 Fifth generation of computer
Lets have a look……………..

13.  Discovered in university of PENSYLAMIA – by John Presper &
John M. Mauchly.
 Digital computer using parts – named ENIAC (Electronic
Numerical Integrator And Computer).
 It required –
 18000 Vacuum tubes.
 17000 registers
 Five million shoulder joined
 Each computer has different binary coded program called machine
language.
 Consumes 160kv of electric power.

15.  Transistors were replaced by vacuum tubes.
 Transistors invented in 1947- used in 1950’s
 Replaced machine allowed language with the assembly language which
program to specify instruction in words.
 Used in business universities and government companies.
 Contain printer, disk storage, operating system, etc.
 1 Transistor = 40 vacuum tubes.
 Heat generating problem.

16. Transistor

17.  Transistor are tiny electrical devices that can be found
in everything from radio to robots.
 They have two key properties:
 They can amplify an electrical signal .
 They can switch on and off, letting current through or
blocking it as necessary.

18.  Integrated circuit were replaced by transistors.
 Transistors were mini authorized and placed on silicon chip called
semi-conductor.
 Instead of punch cards and print out this generation computer were
interacted with keywords and monitor and interface with operating
system.
 Central program monitor memory.
Integrated circuit

20.  Microprocessor bought the fourth generation of computer.
 1000 of integrated circuit were build onto a single silicon chip because of
that computers are very small.
 1982 IBM introduced its first computer for home used of 1984.
 APPLE introduce MASIGTUS.
 Use of personal computer jump for :
2 million in 1981,
1982- 55 million.
 Should be linked and communicate with the local area network(LAN).
 Fourth generation – leads to the development of Internet.

21. microprocessor

22.  Based on artificial intelligence.
 Voice-recognization are being used today.
 Ability to translate the foreign language.
 Example:- ROBOTS.