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1st Generation
The first generation used vacuum tube technology and were built between 1946 and 1959. Vacuum tubes were expensive and produced a lot of heat, which made these computers very expensive and only affordable to large organizations. Machine language was the programming language used for these computers, and they could not multitask. -
1st Generation
The first ENIAC computer -
2nd Generation
Characterized by transistors
Computers were smaller, faster, and more reliable
Examples:
IBM 7090 (1959)
DEC PDP-1 (1960)
Key features:
Used transistors for logic and memory
Introduced assembly languages
Magnetic tapes and disks were introduced for storage -
Period: to
2nd Generation