![]() ![]() ![]() The address bus was 20 bits wide, which enabled the 8086 to address a full 1MB (2 20) of memory. It also had a 16-bit external data path, so it could transfer data to memory 16 bits at a time. The 8086 had 16-bit internal registers and could run a new class of software using 16-bit instructions. The 8086 was one of the first 16-bit processor chips on the market at the time, virtually all other processors were 8-bit designs. Intel introduced the 8086 back in June 1978. IBM, as the architect of the PC at the time, chose Intel processors and support chips to build the PC motherboard, setting a standard that would hold for many subsequent processor generations to come. The first generation of processors represents the series of chips from Intel that were found in the first PCs. Learn More Buy P1 (086) First-Generation Processors Upgrading and Repairing PCs, 17th Edition
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