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X86 Interview Questions

Q   |   QA

Because 8085 processor has 8 bit ALU (Arithmetic Logic Review). Similarly 8086 processor has 16 bit ALU. 

8-bit Processor - 8085 / Z80 / 6800;
16-bit Processor - 8086 / 68000 / Z8000;
32-bit Processor - 80386 / 80486 

RST 6.5 & RST 5.5 are level-triggering interrupts. 

The data bus is Bi-directional because the same bus is used for transfer of data between Micro Processor and memory or input / output devices in both the direction. 

The address bus is unidirectional because the address information is always given by the Micro Processor to address a memory location of an input / output devices. 

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