Download - Generations of computers
GENERATIONS OF COMPUTERS
1st Gen 1940-56
2nd Gen 1956-63
3rd Gen 1964-71
4th Gen 1971-
present
5th Gen Present & Beyond
Use of vacuum tubes
Use of transistor & diodes
Use of IC’s Use of LSI & VLSI
Use of IC’s with ULSI technology
Limited storage capacity
Increased storage capacity
Memory flexibility with i/p & o/p
Increased storage
Based on artificial intelligence
Enormous in size, Expensive
Faster speed Smaller in size& better performance
Faster & smaller
Larger storage capacity
Slow speed Reduced in size & heat generation
Extensive use of high level languages
Modular design , compatible
Support for more complex apps
Machine & assembly languages
High level programming languages
Remote processing & timesharing
Programs & languages for special applications
Still under development
Problems of overheating
COBOL & FORTRAN
Increased use of microcomputers