Describe Briefly The External And Internal Bus Of The 8088 Processor?
Internal Data Bus: As its name suggests the internal data bus only works inside a CPU that is internally. It is able to communicate with the internal cache memories of the CPU. Since they are internally placed they are relatively quick and are now affected by the rest of the computer. External Data bus: This type of bus is used to connect and interface the computer to its connected peripheral devices. Since they are external and do not lie within the circuitry of the cpu they are relatively slower. The 8088 processor in itself contains a 16-bit internal data bus coupled with a 20-bit address register. This allows the processor to address to a maximum of 1 MB.
