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History of computer Before 1st generation of computers?
Electro-Mechanical Computers were used before first generation of computers.
1st generation of computer?
First generation computers were built with vacuum tubes. The capabilities were about the same as that of modern computers, except limited by very small memories and slow speed. Typical first generation computer memory cost from $2 to $20 per byte equivalent, whereas today's computer memory costs less than a micro-penny per byte.
What were the sizes of first generation computers?
It depends on how you define 1st generation. The earliest computers were mechanical, and the size of a fairly large room. We then had electrical computers, like the Enigma encryption device, about the size of a large typewriter. 1st generation electronic devices were quite big - about 4 filing cabinets, with the first generation of 'home' computers being about the size we have now, but using CRT monitors.
What is the difference between 1st and 2nd generation of computer?
First Generation Computers refer to ones with vacuum tubes and were really huge and required vast amounts of electricity. The programming was very limited and very complex USN machine language. Usually they were hardwired and the applications very limited. Second Generation Computer were built using transistors that were much smaller and required less power and space. General Purpose program languages were developed that could be moved from 1 computer to the next.
What are th compare all generations of computer?
No difference really, they still take 1's and 0's and make mathematical calculations corresponding to their instruction sets (CPU). What is DONE with that has changed dramatically tho, with every new generation, and that's about the only real difference...well besides the darn size thing. Any more of an answer would be doing your test for you, and take far more room than this page offers. 1st generation computers used vacuum tubes. This generation spanned roughly 1940s to 1958. Today's generation uses very complicated integrated circuits. It started no earlier than the 1990s. A typical single IC from a modern computer contains several orders of magnitude more components than an entire 1st generation computer occupying an entire room, and runs at speeds unimaginable in the 1st generation.
