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

EXPLANATION

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

EXPLANATION

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

EXPLANATION

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

EXPLANATION

10. Every processor must necessarily have :

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

ANSWER

EXPLANATION

1 2
Be a Part of The New & Next

MCQs fb  MCQs G+

Share the Knowledge

Shares
Copy Protected by Chetan's WP-Copyprotect.