4,004 microprocessor Intel invention could be said to be brought into being through chance encounters that occurred in the story, it is hard to imagine Intel received Japan Busicom delegate's case, the influential inventions. In April 1969, the Japan Busicom company launches new type of machine, a delegate at that time specialized in areas of memory designed in Intel chips. Busicom's original application specifications of 16 different chips, so single-chip research and development benefit important. Intel engineer Ted Hoff and Stan Mazor came up with the concept of 4,004 preliminary and feasible framework, they cooperate in 1971 and completed a design instruction set (instruction set) Foundation. In April 1970, joined by fast semiconductor competitors Vadasz lured Faggin, rapid progress has been caught in a stalemated. When Faggin developed the "silicon-gate technology" (Silicon Gate technology) so that designers no longer have to use large and difficult to control the transistor gate control of aluminum (aluminum transistor gates) for testing.Because there is a viable structure, the test chip results coupled with efficient, 4,004 microprocessors come out on November 15, 1971. Single-chip microcomputer 4,004 integrated 2,300 transistors, 4 bits of data at a time, working frequency is 1MHz, to perform mathematical calculations, cost less than $ 100. Intel CEO Gordon Moore said that this was "one of the most revolutionary product ever." Because of the single-core parts of the chip into the calculator, personal computers were introduced. In 1974, Intel build developed 8,080 processor, designed for application in the control of traffic lights. 8,080 processor integrates 6,000 transistors, computing 290,000 times per second. EdRoberts to 8,080 in the same year as the core completed the first Altair8800 personal calculators, while the original, popular at that time, it has a 256KB of storage space, no keyboard, cursor, display, nor are there any software. Ancestor of 4,004 8,080 processor is a CPU and microprocessor, created a dominance of Intel central processing units in future research and development, Intel set the precedent for many manufacturers follow up, and Bill Gates is due to 4,004 microprocessor has a special idea, he set up Microsoft's enthusiasm was ignited by only. With alternating generations of byte, evolution features of today's CPU does not know how many times, Single chip still has its old non-fade in significance.