what is 8086 in 8086 microprocessor?

Question

86 refers to instructions but what is 80 in 8086

Answer 1

80 is the year of manufacture - 1980.
Some more info abt 8086,
Intel 8086 microprocessor is a first member of x86 family of processors. Advertised as a "source-code compatible" with Intel 8080 and Intel 8085 processors, the 8086 was not object code compatible with them. The 8086 had complete 16-bit architecture - 16-bit internal registers, 16-bit data bus, and 20-bit address bus (1 MB of physical memory). Because the processor had 16-bit index registers and memory pointers, it could effectively address only 64 KB of memory. To address memory beyond 64 KB the Intel 8086 used segment registers - these registers specified where code, stack data and extra data 64 KB segments are located within 1 MB of total processor memory. To accommodate this awkward memory addressing many 8086 compilers included 6 different memory models: tiny, small, compact, medium, large and huge. 64 KB direct addressing limitation went away with the introduction of the 32-bit protected mode in Intel 80386 processor.

Answer 2

Actually, neither number really mean anything.

Intel first made a 4-bit CPU called the 4004 microprocessor.

Then they made one twice as good (double everything) and they called it 8008.

Then they started making improvements on it, and various different models came along. First the 8080, then 8085 by integrating more parts, bigger memory address space, and so on.

8086 was a full 16-bit processor derived from the 8085. It has a 20-bit address space using "segmentation". It was quickly launched to capture the market before Motorola and Zilog actually get the 16 and 32-bit CPUs launched, so it actually featured very little new technology.

8088 is a variant of 8086.

I can tell you that 8086 was NOT named 86 for instructions. There were 116 instructions in the 8086 instruction set, way more than "86". Even if you try to interpret 86 as hex, that's 134 in decimal, still not 116.

And it's a coincidence that 8086 came out in 1980. 8008 came out way before that, as did the 8080 and 8085.

Answer 3

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what is 8086 in 8086 microprocessor?
86 refers to instructions but what is 80 in 8086

Answer 4

8086 Processor