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GATE CS 2021 : Subject Revision Quiz 9 (App update required to attempt this test)

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Question 1

The difference of largest positive number and greatest negative number that can be store in the system having 8-bit word length and using 2 complement number system, is_____.

Question 2

Consider the following 8-bit data computation:

(-121) + (-63)

What is the status of carry, parity, sign, and overflow flags in the computation respectively?

Question 3

Which register of current procedure resemble physically similar to the parameter register of called procedure during register to register operation in an overlapping window of RISC Processors?

Question 4

Pipelining is a unique feature of

Question 5

Which processor has the necessity of manual optimization for the generation of assembly language code especially for the embedded systems?

Question 6

Consider the following IEEE single precision floating point number shown below:
0 1 0 0 0 0 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
What is the octal equivalent of above number?

Question 7

The maximum positive and negative decimal numbers that can be represented in two’s compliment using n-bits are

Question 8

Consider the number given by the decimal expression.

16³ x 9 + 16² x 7 + 16 x 5 + 3

The number of 1's in the unsigned binary representation of the number is

Question 9

A distinction is made between physical records and logical records. A logical record is a collection of related data elements treated as a conceptual unit, independent of how or where the information is stored. A physical record is a contiguous area of storage space that is defined by the characteristics of the storage device and operating system. Assume a disk system in which each physical record contains thirty 120-byte logical records. Calculate how much disk space (surfaces) will be required to store 300,000 logical records if the disk is fixed-sector with 512 bytes/sector, with 96 sectors/track, 110 tracks per surface, and 8 usable surfaces. Ignore any file header record(s) and track indexes, and assume that records cannot span two sectors.

Question 10

Identify the false statement:

S1: Separate I/O address space does not necessarily mean that I/O address line are physically separated.

S2: Address decoder is an essential part of I/O interface.

Question 11

Separate instructions are used to address I/O devices and main memory in approach of

1. Isolated I/O
2. Memory-mapped I/O

Question 12

For slow I/O devices, we generally use

Question 13

Consider a system such that the number of clock for a polling operation (including transferring to the polling routine, accessing the device and restarting) is 400 cycles, and that the processor executes with a 500 MHz clock. Determine the fraction of CPU consumed when the mouse must be polled 30 times per second.

Question 14

The speed gained by an ‘n’ segment pipeline executing ‘m’ tasks is

Question 15

Given a 5 stage pipeline with stages taking 2,2,4,3,1 units of time, The clock period of the pipeline is____?

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