Quiz 1
Second Semester
Session 1435/1436 AH
Student Name
:
Student ID
:
Student Signature
:
Department
Course Code
Course Name
Date of Exam
:
Time
Number of Exam Pages
:
:
:
:
:
Department of Computer Science
COCS 312
Computer Organization
Thursday, February 26, 2015
11:00 - 12:00
3
Total Marks
10
Marks
Outcome A
Outcome B
Signature:___________________________
Name of the Examiner:
Total Marks
(In Figure)



/5 Marks
/5 Marks
/10 Marks
Total Marks
(In Words)
Instructions to Candidates:
There are two outcomes(A, B) in this paper. Read each question carefully. Figure in the right hand side shows marks.
Answer each question according to the instruction provided. Give figure whenever necessary. Give code whenever necessary.
1 of 3
Outcome A
Q1. Define
.
A. Micro ops serial transfer
Ans.
[2]
Q2. Explain the instruction format for a machine and the types of instruction .
Ans.
[3]
Outcome B
Q3. Write the steps for instruction fetch ,instruction decode, instruction execute for the following operation
F=a+b+c*d-e
[2]
2 of 3
Q4. Answer the following multiple choice questions .
1.____________ register holds fetched instruction for decoding
a.Address register
b.Temporary register
c.Instruction register
[3]
2. ____________made up of elements which describe the registers being manipulated, and the micro-ops being
performed on them .
a.Micro operations
b. Register transfer language
c. Bus
3.___________ represents carrying or borrowing between half bytes of an 8 bit arithmetic or logic operation
a. Carry (CF)
b. Auxillary Carry(AF)
c. Parity (PF)
3 of 3