 |
| Generation of computer |
Generation
|
Hardware feature
|
Characteristics
|
System Names
|
First (1942-1956)
|
Ø
Vacuum
Tubes
Ø
Punch
card
|
Ø
Support
machine language only
Ø
Very
costly
Ø
Generate
lot of heat
Ø
Huge
size
Ø
Consumed
lot of electricity
|
Ø
ENIAC
Ø
EDVAC
Ø
TBM
701
|
Second (1956-1965)
|
Ø
Transistors
Ø
Magnetic
tapes
|
Ø
Batch
operating system
Ø
Faster,
smaller and reliable then previous generation
Ø
Costly
|
Ø
Honeywell
400
Ø
CDC
1604
Ø
IBM
7030
|
Third(1965-1975)
|
Ø
ICs
Ø
Large
capacity disk and Magnetic tapes
|
Ø
Time
sharing os
Ø
Faster
smaller and reliable cheaper
Ø
Easier
to update
|
Ø
IBM
360/370
Ø
CDC
6600
Ø
PDP
8/11
|
Fourth(1975-1988)
|
Ø
ICs
with VLSI Technology
Ø
Semiconductor
memory
Ø
Magnetic
tapes and floppy as portable
|
Ø
Multiprocessing
& GUI OS
Ø
Object
oriented programs
Ø
Small,
affordable, easy to use
Ø
Easier
to update
|
Ø
Apple
-2
Ø
VAX
9000
Ø
CARY
1/2
|
Fifth(1988-present)
|
Ø
ICs
with ULSI Technology
Ø
Large
capacity hard disk with RAID support
Ø
Optical
disks as portable read-only storage media
Ø
Powerful
server, internet cluster computing
|
Ø
Powerful,
cheaper, reliable easy to use ,portable
Ø
Rapid
software development possible
|
Ø
IBM
Ø
PENTIUM
Ø
PARAM
|
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