While the 8086 has 3 16-bit slots in the instruction prefetcher the 8088 gets 4 slots, each 8-bit. The prefetching hardware is part of the Bus Interface Unit (BIU), which effectively decouples the ...

While the 8086 has 3 16-bit slots in the instruction prefetcher the 8088 gets 4 slots, each 8-bit. The prefetching hardware is part of the Bus Interface Unit (BIU), which effectively decouples the ...

Elsewhere, the key innovation in the 8088 versus the 8086 was the use of a full 16-bit internal architecture but mated with an 8-bit data bus. Without the 8088 we wouldn't have the likes of the ...