Chapter 2 INTRODUCTION & MICROPROCESSOR AND ARCHITECTURE MCQs 10 min Score: 0 Attempted: 0/10 Subscribe 1. Total number of registers of a microprocessor is called its ……………. (A) Register Array (B) Registers Directory (C) Register Unit (D) None of allShow All Answers 2. General purpose register DX is also known as ……………… (A) Direct Register (B) Discrete Register (C) Double Register (D) Data RegisterShow All Answers 3. BIU stands for ………………… (A) Bus Internal Unit (B) Bus Interface Unit (C) Bus Intact Unit (D) None of allShow All Answers 4. In 8086, the name of program counter register (PC) is ………… (A) MAR (B) IR (C) IP (D) AccumulatorShow All Answers 5. Registers are known as the …………… (A) External memory of microprocessor (B) Internal memory of microprocessor (C) Auxiliary memory (D) None of allShow All Answers 6. Segment registers of 8086 are ------------ bit in width. (A) 32 (B) 8 (C) 16 (D) 4Show All Answers 7. Microprocessor stores the fetched instruction in …………. (A) IR (B) MBR (C) MAR (D) PCShow All Answers 8. Flags register of 8086 is ------------ bit wide. (A) 4 (B) 8 (C) 16 (D) 32Show All Answers 9. In 8086, there are ------------ control flags. (A) 6 (B) 4 (C) 5 (D) 3Show All Answers 10. Microprocessor stores the address of fetched instruction in ……… (A) MBR (B) IR (C) MAR (D) PCShow All Answers
