Intel is marking 40 years since the launch of its first microprocessor, which was revealed on 15 November 1971, just over three years after the company was created. The 4004 was originally designed for use in a calculator, reducing the number of chips needed from twelve to four, before being marketed to a wider audience via an advert in Electronic News magazine. The chip was a long way from the world of Core 2 Duos and i7s — a 4-bit processor clocked at 740kHz, with 46 possible instructions — but it introduced the Processor, RAM, and ROM setup that we still use today. Even the production method of the chips seems antiquated now, with individual sheets of film being physically cut and printed before being sandwiched together, in...
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