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ISRO Exam CS 2017 Topic-Wise Quiz Computer Organization (ALU)

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Question 1

Suppose two jobs, each of which needs 10 min of CPU time, start simultaneously. Assume 50%I/O wait time.
How long will it take for both to complete if they run sequentially?

Question 2

A processor that has carry, overflow and sign flag bits as part of its program status word (PSW)performs addition of the following two 2’s complement numbers 01001101 and 11101001. After the execution of this addition operation, the status of the carry, overflow and sign flags, respectively will be

Question 3

The two numbers given below are multiplied using the Booth’s algorithm.
Multiplicand: 0101 10101110 1110
Multiplier : 0111 0111 1011 1101
How many additions /Subtractions are required for the multiplication of the above two numbers?

Question 4

In which class of Flynns Taxonomy, von Neumann architecture belongs to?

Question 5

Two eight bit bytes 1100 0011 and 0100 1100 are added. What are the values of the overflow, carry and zero flags respectively, if the arithmetic unit of the CPU uses 2's complement form?

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GATE & PSU CS Computer Organization and Architecture

Jun 8GATE & PSU CS