The description of the generation of computers is down below: “Computers of this generation appeared, when IBM introduced the System360, a line of software-compatible computers with varying levels of capability and pricE. Because the machines shared the same architecture and instruction set, programs created for one could be run on the other”. Which generation of computers is described in the text?

• This is a description of the first generation, which lasted from 1940s to 1950s, when word- oriented computers typically had a single accumulator and an extension, referred to as, E. g., Upper and Lower Accumulator, Accumulator and Multiplier-Quotient (MQ) register
• This is a description of the third generation, which lasted from 1965 to 1980s. These devices generally relied on early (sub-1000 transistor) integrated circuit technology. The third generation ends with the microprocessor-based fourth generation
• This is a description of the fourth generation, which has been lasting from 1970s to Present. he basis of the fourth generation is the microprocessor, a computer processor contained on a single large-scale integration (LSI) MOS integrated circuit chip

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