1. Total number of registers of a microprocessor is called its …………….
(A) Register Array
(B) Registers Directory
(C) Register Unit
(D) None of all
2. General purpose register DX is also known as ………………
(A) Direct Register
(B) Discrete Register
(C) Double Register
(D) Data Register
3. BIU stands for …………………
(A) Bus Internal Unit
(B) Bus Interface Unit
(C) Bus Intact Unit
(D) None of all
4. In 8086, the name of program counter register (PC) is …………
(A) MAR
(B) IR
(C) IP
(D) Accumulator
5. Registers are known as the ……………
(A) External memory of microprocessor
(B) Internal memory of microprocessor
(C) Auxiliary memory
(D) None of all
6. Segment registers of 8086 are ------------ bit in width.
(A) 32
(B) 8
(C) 16
(D) 4
7. Microprocessor stores the fetched instruction in ………….
(A) IR
(B) MBR
(C) MAR
(D) PC
8. Flags register of 8086 is ------------ bit wide.
(A) 4
(B) 8
(C) 16
(D) 32
9. In 8086, there are ------------ control flags.
(A) 6
(B) 4
(C) 5
(D) 3
10. Microprocessor stores the address of fetched instruction in ………
(A) MBR
(B) IR
(C) MAR
(D) PC