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Computer System Architecture MCQ - Basic Computer Organization and Design

21 The addressing mode used in the instruction PUSH B is

Push is used to write into stack
1. This is not direct we are not mentioning address here.
2. It's not register indirect we are not mentioning register which contain address.
3. It's not immediate we are not storing immediate value.
So answer is (B) i.e. register addressing

22 The process of fetching and executing instructions,one at a time, in order of increasing addresses is called

23 The CPU of a Computer takes instruction from the memory and executes them. This process is called

24 When a program is being executed in an 8085 microprocessor, its Program Counter contains

25 When the HLT instruction of a 8085 micro-processor is executed, the microprocessor

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Question:

A low memory can be connected to microprocessor by using

A. INTER
B. RESET IN
C. Both (a) and (b)
D. READY

Correct answer: D

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