Architecture & Organization of 8085 Microprocessor – 1 – 2

6. WAIT states are used :

(a) To give slow devices additional time to put out valid data
(b) To insert a deliberate delay
(c) During I/O operation
(d) None of the above

ANSWER
Answer : (b)

EXPLANATION
No answer description available for this question. Let us discuss.

7. Stack pointer is a reg. Which comes into use :

(a) Whenever a data is read from the memory
(b) Whenever a data is written in the memory
(c) Whenever the O/p variable is sent out of the CPU
(d) Whenever an interrupt or high priority call comes from external devices

ANSWER
Answer : (c)

EXPLANATION
No answer description available for this question. Let us discuss.

8. In mp architecture, flag indicates :

(a) The no. of mp
(b) The name of manufacturer
(c) The internal status of the CPU
(d) The bit size of the mp

ANSWER
Answer : (d)

EXPLANATION
No answer description available for this question. Let us discuss.

9. The basic elements of a mp are :

(a) ALU, memory
(b) ALU, control unit
(c) ALU, memory and I/O
(d) ALU, control unit and memory

ANSWER
Answer : (b)

EXPLANATION
No answer description available for this question. Let us discuss.

10. Every processor must necessarily have :

(a) Data bus
(b) Address bus
(c) Control bus
(d) All of the above

ANSWER
Answer : (c)

EXPLANATION
No answer description available for this question. Let us discuss.

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