Computer/Computer Organization and Architecture MCQs Sample Test,Sample questions

Question:
 A Boolean function can be translated from ______________ expression into a logic diagram.

1.boolean.

2.logical

3.relational

4.algebric


Question:
 A straight subtraction of 2 numbers requires a __________ circuit.

1.BCD adder.

2.subtractor

3.division

4.subtractor


Question:
 A ________ is a group of flip-flops.

1.memory.

2.circuit

3.register

4.bits


Question:
 During the execution of the instructions, a copy of the instructions is placed in the _____.

1.Register

2.RAM

3.System heap

4.Cache


Question:
 Each gate can be represented in tabular form by __________.

1.symbols.

2.function

3.truth table.

4.logic


Question:
 In flip-flop input R stands for __________.

1. read.

2.reset

3.reimburse

4.rectangle


Question:
 In T flip-flop T stands for ___________.

1.technical

2. toggle.

3.trigger

4. type edged.


Question:
 Minterm is also called ________.

1.standard product.

2.standard sum.

3.union

4.difference


Question:
 The first computer architecture was designed (or developed) in

1.1970

2.1971

3.1968

4.1972


Question:
 The major basic functions performed by a computer are

1.Data and Instructions are accepted as input.

2.Processing of data as per the instructions (called data processing)

3.Control of all operations inside the computer and produced the result in the form of output.

4. All of the above areas


Question:
 The ____________ memory access time is less than the access time of the main memory.

1.virtual

2.associative

3.backup

4.mapping


Question:
 There are ________ basic arithmetic operations.

1.. one.

2. two.

3.three.

4.four


Question:
 What is concerned with the way the hardware components operate to form computer system?

1.Computer organization.

2.Computer design.

3.Computer architecture.

4.Computer implementation.


Question:
A decimal arithmetic unit is a ___________ function that performs decimal micro operations.

1.analog

2.logical

3.digital

4.boolean


Question:
A register is capable of storing __________ bit of information.

1.one.

2.two

3.three

4.four


Question:
A _______ is a digital circuit that performs the inverse operation of a decoder.

1.multiplexer

2.adder

3.subtractor

4.encoder


Question:
A _________ circuit is a connected arrangement of logic gates with a set of inputs and outputs.

1.arithmetic.

2.logic

3.combinational

4.shift


Question:
A _________ is a combinational circuit that forms sum of 3 input bits.

1.half adder.

2. full adder

3.BCD adder.

4.composite adder.


Question:
A _____________ circuit is an interconnection of flip-flops and gates.

1.combinational.

2.arithmetic

3.shift

4.sequential


Question:
A _______________ interrupt is a system that establishes a priority over sources to determine which
condition to service first.

1. software.

2.hardware

3.priority

4.device


Question:
Devices that provide backup storage are called ___________ memory.

1.main

2.auxiliary

3.backup

4.device


Question:
How many digits are used in Binary number system?

1.zero.

2.one

3.two

4.three


Question:
If both inputs A and B are equal to 1 in AND gate, the output is_______.

1.zero.

2.one

3.don’t care.

4.binary


Question:
Maxterm is also called ________.

1.standard product.

2.standard sum.

3.union

4.differnce


Question:
Short form of “American Standard Code for Information Interchange”.

1. ASCFII

2.ASCII

3.ASCFI

4.ASCI


Question:
Special input terminal for setting the flip-flop is called ______.

1.clear.

2.set

3.preset

4.reset


Question:
The addition of 2 binary digits is done by ___________ circuit.

1.half adder.

2. full adder

3.BCD adder.

4. composite adder.


Question:
The arithmetic processor is simple if it has only fixed point ________ instruction.

1.add.

2.subtract

3.multiply

4.division


Question:
The condition when it does not matter if the function produces 0 or 1 for a given minterm is ________________.

1.SOP.

2.POS

3.NOR

4.don’t care.


Question:
The CPU responds to the interrupt signal by storing the ___________ address from program counter.

1.stack.

2.memory

3.return

4.I/O.


Question:
The K-Map is also called ________________ diagram

1.venn.

2.boolean

3.vector

4.veitch


Question:
The K-Map is also called ________________ diagram

1.venn

2.boolean

3.vector

4.veitch


Question:
The main components (or basic units) of a computer system are

1. Input/ Output unit

2.Central Process Unit (CPU)

3.Memory unit (Storage unit)

4.All of the above


Question:
The manipulation of binary information is done by logic circuits called __________.

1.blocks

2.gates

3.symbols

4.functions


Question:
The map simplification method is also known as ___________ map.

1.karnaugh.

2.algebric

3.basic

4.binary


Question:
The means of entering information into computer is through a ___________.

1.mouse

2.keyboard.

3.printer

4.monito


Question:
The memory unit that directly communicates with CPU is called __________ memory.

1. main.

2.auxiliary

3.device

4.backup


Question:
The multiplexer is also called ________ selector since it selects one of many data inputs.

1.line

2.data

3.binary

4.octal


Question:
The solution to any problem stated by a finite number of procedural steps is _________.

1. procedure.

2.algorithm

3.subprogram

4.specification


Question:
The state of the flip flop after the occurrence of a clock pulse is called __________ state .

1.high level.

2.present

3.next

4.low level.


Question:
The state table of sequential circuit consists of __________ sections.

1.one.

2.two

3.three

4.four


Question:
The storage element employed in clocked sequential circuit is called ___________.

1.memory.

2.flipflop

3.circuit

4.subtractor


Question:
The summation symbol stands for the _______.
A. ORing of terms.
B. AND of terms.
C. Not.
D. NAND.

1.ORing of terms.

2. AND of terms.

3.Not

4.NAND


Question:
The _______ input in the register determines the action to be taken with each clock pulse.

1. buffer.

2.register

3.load

4.zero


Question:
The _________ flip-flop is a slight modification of SR flip-flop.

1.JK

2.T

3.edge triggered.

4.D.


Question:
The ___________ subsystem of a computer provides communication between central system and
outside environment.
.

1.. input/output

2.input

3.output

4.exit


Question:
The ____________ memory access time is less than the access time of the main memory.

1. virtual.

2.associative

3.cache

4.mapping


Question:
The ____________ state shows the states of flip-flops A and B at any given time t.

1. input.

2.next

3.present

4.output


Question:
What digit is called a bit?

1.decimal

2.binary.

3.octal

4.hexadecimal


Question:
What is the reflected code for the decimal equivalent 9?

1.1100

2.1101

3.1011

4.1001


Question:
What is the term used for “sequence of instructions for the computer”?

1.hardware

2.program.

3.data

4.instruction


Question:
What type of computer uses the binary number system?

1.Analog.

2.Intra

3.Super

4.Digital


Question:
Which component of the computer consists of physical entity of the device?

1.software

2.middleware

3.hardware

4.firmware


Question:
Which consists of instructions and data that computer manipulates to perform data processing tasks?

1.software.

2.middleware

3.hardware

4.firmware


Question:
________ is a binary code of a group of elements consisting of 10 decimal digits, the 26 letters of
the alphabet and a certain number of special symbols such as $.

1. Alphanumeric code.

2.Decimal code.

3.Error detection code.

4.Reflected code.


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