A CPU’s job is to execute programs.
microarchitecture.
16 memory locations, each containing 8 bits.
four, 8-bit memory registers, labeled A, B, C and D
fetch phase.
first instruction. 0010 1110.
decode phase. 0010. “LOAD A” instruction
execute phase!
Clock Speed.
The very first, single-chip CPU was the Intel 4004, a 4-bit CPU released in 1971.
A new level of abstraction!
