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Intel

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Read Also:

• Intel 4004

  processor The world’s first microprocessor, released in 1971. The 4004 contained 2300 transistors (compared with 5.5 million in the 1996 Pentium Pro) and was intended for use in a calculator. It processed data in 4 bits, but its instructions were 8 bits long. Program and Data memory were separate, it had 1 kilobyte of data […]

• Intel 4040

  processor An enhanced version of the Intel 4004, adding 14 instructions, larger (8 level) stack, 8 kbyte program memory and interrupt abilities (including shadows of the first 8 registers). The 4040 was similar to the Intel 8008. (1994-10-31)

• Intel 486

  processor (Or “i486”, “iAPX 80486”, and “Intel DX4” but usually just “486”). A range of Intel CISC microprocessors which is part of the Intel 80×86 family of processors. The 486s are very similar to their immediate predecessor, the Intel 80386DX. The main differences are that the 486 has an optimised instruction set, has an on-chip […]

• Intel 486dx

  processor One of Intel’s Intel 486 family of microprocessors (one of the last before the Pentium). The 486DX has a working built-in floating point unit (FPU). The Intel 486SX is effectively a DX with the FPU disabled. The DX has a pin to select the external data bus width (16 or 32). The Intel 487SX […]

• Intel 486sx

  processor An Intel 486DX microprocessor with its floating-point unit disconnected. All 486SX chips were fabricated with FPUs. If testing showed that the CPU was OK but the FPU was defective, the FPU’s power and bus connections were destroyed with a laser and the chip was sold cheaper as an SX, if the FPU worked it […]

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