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The Intel 4004 is a 4-bit central processing unit (CPU) released by Intel Corporation in 1971. Sold for US$60 (equivalent to $450 in 2023 [ 2 ] ), it was the first commercially produced microprocessor , [ 3 ] and the first in a long line of Intel CPUs .
The Intellec 8 is able to address up to 16 K of memory and came with 5 K pre-installed. The Intellec 4 came with 1 K of PROM and 4 K of RAM for instruction memory, as well as 320 4-bit words of data memory, expandable to 2560 words. The Intellec 8 ran with a two-phase clock of 800 kHz, resulting in an instruction cycle time of 12.5 us.
Download as PDF; Printable version; ... 5.185 MHz Clock Generator Crystal for 4004/4201A or 4040/4201A; Intel C4040. ... Intel MMX (instruction set) support;
Intel 4040 DIP chip pinout. The 4040 was essentially an expansion of the 4004, with additional pins, more registers and new instructions to take advantage of both. The 4004 had a single ROM pin, whereas the 4040 added another ROM pin to allow two banks of ROM. This effectively increased the ROM address from 12 to 13 bits, or 8 kB.
Download as PDF; Printable version ... like the Intel 4004, ... the 1980s involved overall design philosophy with the emergence of the reduced instruction set ...
The first commercial microprocessor was the binary-coded decimal (BCD-based) Intel 4004, [2] [3] developed for calculator applications in 1971; it had a 4-bit word length, but had 8-bit instructions and 12-bit addresses. It was succeeded by the Intel 4040, which added interrupt support and a variety of other new features.
A follow-on chip, the TMS 9980, was designed to compete with the Intel 8080, had the full TI 990 16-bit instruction set, used a plastic 40-pin package, moved data 8 bits at a time, but could only address 16 KB. A third chip, the TMS 9995, was a new design.
The x86 instruction set refers to the set of instructions that x86-compatible microprocessors support. The instructions are usually part of an executable program, often stored as a computer file and executed on the processor. The x86 instruction set has been extended several times, introducing wider registers and datatypes as well as new ...