Enrolment Number:
PARUL UNIVERSITY
FACULTY OF ENGINEERING & TECHNOLOGY
B. TECHMIDSEM EXAMINATION WINTER 2022-23
SUBJECT NAME (CODE): Computer Organization and Microprocessor Architecture. (203124209)
BRANCH: AYBDA/BC/CCICS/IOT
DATE: 8.8.2022 TIME:2$O PM to 4:00 PM TOTAL MARKS: 40
Sr.No.
Q.1 (A) Compulsory Question (5 MCQ)
1. 8085 has _ address bit.
a.4 b.3 c.8 d.16
L
2.Total number of Pins in 8085 are
a.40 b.32 c.20 d. 16
3.MOV A, B is a _ byte instruction.
a. 1 Byte b. 3 Byte c.2Byte d. None
4. LXI H,2048H is a _ byte instruction.
a. I Byte b. 3 Byte c.2 Byte d. None
5. Which among these is a non-vectored Intenupt.
a. INTR b. INTA c. RST 4.5 d. RST 7.5
(B) Compulsory Question
l. Define: Opcode and Operand.
2. ALE is used to perform arithmetic and logical function. (TRUE/FALSE)
3. In LDA 5041H instruction, is Opcode and _ is Operand.
4. What is Microprocessor?
5. Define: T-state.
Q.2 Attempt any four(Short Questions)
(1) Describe: LDA, STA and MVI instruction with example.
(2) Explain classification of Addressing mode.
(3)What is Address Bus, Data Bus and Control Bus.
(4)What is a memory? Give difference of static and dynamic RAM
(5)Draw and explain Flag register?
Marks
05
05
t2
