3. GROUP MEMBERS NIDA IRFAN AHSAN AKRAM USMAN BASHIR Amber shaheen
Ghulam Hassan

4. MINI COMPUTERS

5. WHAT ARE MINI COMPUTERS
Minicomputers are computers that are somewhere in between a microcomputer and a main frame computer
The mini-computer has a wide variety of uses:
communications controller;
large-system pre-processor
real-time data acquisition systems
desk calculator.

6. They are relatively low cost and small.
This setup allowed more people to have access to computers.
It has a less memory than main frame

7. History of mini computer
This was the first mini computer
In 1960’s
It was rather slow
It was too expensive cost $50’000
It is a 22-bit serial machine with
acoustic delay line memory.

8. DEC PDP-8 Classic Introduced in 1965 It was considered first mini
computer.
It was less than 25000
It was faster than earlier
machines

9. Data General Super NOVA
It was the competitor to
DEC
This fast 16-bit mini had
some primitive protection
features

10. DEC PDP-11 The PDP-11 came out in 1970 It was a 16-bit machine with an
elegant instruction set.
It is the most powerful and
combination of old
computers.

11. Structure of mini computers
THESE WERE BASED ON INTEREGRATED
CIRCUITS CALLED CHIPS
THIS TECHNOLOGY WAS INVENTED BY
JACK KIBLY AND ROBERT NOYCE IN 1950’S
IT WAS MADE UP OF SILICIUM AND WORK
AS A CONDUCTOR
THESE CONSUME LESS POWER AND
RELIABLE COMPARED TO TRANSISTORS

12. TECHNOLOGIES THROUGH MINI COMPUTERS
PUNCH CARDS
LINE PRINTER
CATHOD RAY TUBE MONITOR

13. OPERATING SYSTEM USED FOR MINI COMPUTERS
ASSEMBLER CODE OPERATING SYSTEM.
IN 1969 BELL LABS MULTICS OPERATING SYSTEM
KEN THOMPSON’s ‘B’ LANGUAGE SYSTEM NAMED ‘UNIX’
IMPROVED VERSION OF ‘B’ LANGUAGE
NAMED ‘C’ LANGUAGE BYDENNIS.M.RITCHIE

14. MOST SUCESSFUL OPERATING SYSTEM
‘C’ LANGUAGE SYSTEM CALLED UNIX
USED IN
IBM HONEY WELL INTER DATA
/32

15. MODERN TECHNOLOGIES BY MINI COMPUTERS

16. MINI COMPUTERS WERE FAMOUS IN 1960’s AND 1970’s AS THE TIME PASSES NEW TECHNOLIGIES DEVELOPED BUT STILL WE CANT SAY THEY ARE EXTINCT.