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BARC ECE 2019 : Computer Engineering Nuclear Quiz 1
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Question 1
A device employing INTR line for device interrupt puts the CALL instruction on the data bus while
Question 2
Find the capacity of a hard disk if it has 8 platters, 128 sectors, 2K cylinders, 512 byte per sector.
Question 3
The use of multiple register windows with overlap causes a reduction in the number of memory accesses for
I. Function locals and parameters
II. Register saves and restores
III. Instruction fetches
I. Function locals and parameters
II. Register saves and restores
III. Instruction fetches
Question 4
Cache memory is situated between CPU and main memory because
Question 5
Which of the following does not interrupt a running process?
Question 6
Consider a memory has 3 levels with 0.6,0.5 and 0.9 hit ratios. Find the total number of memory references for level one and level two memories made by 600 instruction program.
Question 7
Which type of memory is used to built main memory.
Question 8
A CPU has two modes-privileged and non-privileged. In order to change the mode from privileged to non-privileged
Question 9
Let the clock cycles required for various operations be as follows:
Register to/from memory transfer : 3 clock cycles
ADD with both operands in register: 1 clock cycle
Instruction fetch and decode: 2 clock cycles per word
The total number of clock cycles required to execute the program is?
Question 10
If instruction length in a system is 32 bits and memory has 32 words. Then find the 1 address instructions if there are 42 address instructions’.
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Jun 25ESE & GATE EC