Question

Difference between 8086 and 8088 microprocessor ?

Answer 1

8086	8088
1. 8086 microprocessors is a 16 bit microprocessor, with 16 bit internal and external data bus.	1. The 8086 microprocessor is an 8 bit microprocessor with 16 bit internal and 8 bit external data bus.
2. The control pin in 8086	2. The control pin in 8088 is M’/IO. Is M/IO’.
3. The instruction queue Length is 6 byte.	3. The instruction queue length is 4 byte.
4. 8086 has 16 data pins ,So it fetch two byte of instruction code only when two register Of IQ (instruction queue) become code byte. Vacant.	4. 8088 has8 data pin .so whenever one register of iq become vacant then 8088 will fetch in the instruction code byte.
5. The BHE’ pin used along With A0 to access low, high Or Both byte from memory location.	5. Unlike the 8086, BHE’is not present in 8088. Therefore the external memory interface will not have even byte from a memory location.