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| Computer Fundamental MCQ [Multiple Choice Questions]-Junior Office Assistant (Information Technology)-965 |
Q.1. Who is the father of Computers?
a) James Goslingb) Charles Babbage
c) Dennis Ritchie
d) Bjarne Stroustrup
Answer: b
b) Computer Principle Unit
c) Central Processing Unit
d) Control Processing Unit
Explanation: Charles Babbage is known as the father of computers. Charles Babbage designed and built the first mechanical computer and Difference Engine.
Q.2 What is the full form of CPU?
a) Computer Processing Unitb) Computer Principle Unit
c) Central Processing Unit
d) Control Processing Unit
Answer: c
Explanation: CPU stands for Central Processing Unit. CPU is the part of a computer system that is mainly referred to as the brain of the computer.
Q.3 Which of the following computer language is written in binary codes only?
a) pascal
b) machine language
c) C
d) C#
a) pascal
b) machine language
c) C
d) C#
Answer: b
b) LCD
c) CRT
d) Flat Panel Monitors
Explanation: Machine Language is written in binary codes only. It can be easily understood by the computer and is very difficult for us to understand. A machine language, unlike other languages, requires no translators or interpreters.
Q.4 Which of the following is the brain of the computer?
a) Central Processing Unit
b) Memory
c) Arithmetic and Logic unit
d) Control unit
a) Central Processing Unit
b) Memory
c) Arithmetic and Logic unit
d) Control unit
Answer: a
Explanation: The CPU is referred to as the brain of a computer.
b) KB
c) Nibble
d) Byte
Explanation: The CPU is referred to as the brain of a computer.
It consists of a control unit and an arithmetic and logic unit. It is responsible for performing all the processes and operations.
Q.5 Which of the following is the smallest unit of data in a computer?
a) Bitb) KB
c) Nibble
d) Byte
Answer: a
Explanation: A bit is defined as the smallest unit of data in a computer system. It is used as a short form of Binary Digit. A bit can have only two values 0 or 1. A nibble comprises 4 bits, a byte is a collection of 8 bits whereas KB (Kilobyte) is equal to 1024 bytes.
Explanation: A bit is defined as the smallest unit of data in a computer system. It is used as a short form of Binary Digit. A bit can have only two values 0 or 1. A nibble comprises 4 bits, a byte is a collection of 8 bits whereas KB (Kilobyte) is equal to 1024 bytes.
Q.6 Which of the following monitor looks like a television and are normally used with non-portable computer systems?
a) LEDb) LCD
c) CRT
d) Flat Panel Monitors
Answer: c
Explanation: A CRT (or the Cathode Ray Tube) Monitor looks like a television ideally. The flat-panel monitors are thinner and lighter in comparison.
Explanation: A CRT (or the Cathode Ray Tube) Monitor looks like a television ideally. The flat-panel monitors are thinner and lighter in comparison.
Q.7 Which of the following part of a processor contains the hardware necessary to perform all the operations required by a computer?
a) Controllerb) Registers
c) Cache
d) Data path
Answer: d
Explanation: A processor is a part of the computer which does all the data manipulation and decision-making. A processor comprises:
A data path that contains the hardware necessary to perform all the operations. A controller tells the data path what needs to be done. The registers act as intermediate storage for the data.
Q.8 Which of the following device use positional notation to represent a decimal number?
a) Pascalineb) Abacus
c) Computer
d) Calculator
Answer: b
Explanation: Abacus was used to do arithmetic calculations around 2500 years ago. Pascaline was pascal’s calculator by Blaise Pascal invented for doing laborious calculations.
Explanation: Abacus was used to do arithmetic calculations around 2500 years ago. Pascaline was pascal’s calculator by Blaise Pascal invented for doing laborious calculations.
Q.9 Which of the following is used in EBCDIC?
a) Super Computersb) Mainframes
c) Machine Codes
d) Programming
Answer: b
Explanation: This concept of EBCDIC was invented by IBM. It is mainly used in the IBM mainframe environment. So basically, mainframes use EBCDIC codes.
Explanation: This concept of EBCDIC was invented by IBM. It is mainly used in the IBM mainframe environment. So basically, mainframes use EBCDIC codes.
Q.10 Which of the following defines the assigned ordering among the characters used by the computer?
a) Accumulation
b) Sorting
c) Collating Sequence
d) Unicode
b) Sorting
c) Collating Sequence
d) Unicode
Answer: c
Explanation: Collating sequence is the term used for ordering among characters. It may vary depending upon the type of code used by a computer.
Q.11 Which of the following devices provides the communication between a computer and the outer world?
a) Compactb) I/O
c) Drivers
d) Storage
Answer: b
Explanation: The I/O i.e. the input/output devices provide a means of communication between the computer and the outer world.
Explanation: The I/O i.e. the input/output devices provide a means of communication between the computer and the outer world.
Q.12 Which of the following can access the server?
a) Web Clientb) User
c) Web Browser
d) Web Server
Answer: a
Explanation: Any computer that has access to the webserver is called the web client. A web server is any computer that uses the HTTP protocol.
Explanation: Any computer that has access to the webserver is called the web client. A web server is any computer that uses the HTTP protocol.
Q.13 Which of the following invention gave birth to the much cheaper microcomputers?
a) PDAs
b) Microprocessors
c) Microcomputers
d) Mainframes
a) PDAs
b) Microprocessors
c) Microcomputers
d) Mainframes
Answer: b
Explanation: The invention of the microprocessor (also called a single-chip CPU) gave birth to much cheaper microcomputers.
Explanation: The invention of the microprocessor (also called a single-chip CPU) gave birth to much cheaper microcomputers.
Q.14 A process is a _______.
a. a single thread of execution.
- program in the execution
- program in the memory
- task
Answer: (b) program in the execution
Explanation: A process is a program that is executed by the threads. It consists of multiple threads of execution.
Q.15 Which of the following is the first neural network computer?
a) ANb) AM
c) RFD
d) SNARC
Answer: d
Explanation: SNARC was the first neural network computer. it was built by Minsky and Edmonds in 1956.
Explanation: SNARC was the first neural network computer. it was built by Minsky and Edmonds in 1956.
Q.16 Components that provide internal storage to the CPU are ______
a) Registersb) Program Counters
c) Controllers
d) Internal chips
Answer: a
Explanation: The Registers are the fast storage units. They are responsible for storing intermediate computational results in the CPU. The registers can be user accessible or inaccessible.
Explanation: The Registers are the fast storage units. They are responsible for storing intermediate computational results in the CPU. The registers can be user accessible or inaccessible.
Q.17 Which of the following is non-volatile storage?
a) Backup
b) Secondary
c) Primary
d) Cache
a) Backup
b) Secondary
c) Primary
d) Cache
Answer: b
Explanation: The secondary storage is the non-volatile storage unit because the data is not lost when the power supply is dissipated. Primary memory is the volatile memory.
Explanation: The secondary storage is the non-volatile storage unit because the data is not lost when the power supply is dissipated. Primary memory is the volatile memory.
Q.18 Which of the following is used in main memory?
a) SRAM
b) DRAM
c) PRAM
d) DDR
a) SRAM
b) DRAM
c) PRAM
d) DDR
Answer: b
Explanation: DRAM stands for dynamic random access memory. It is denser than SDRAM (Static) and therefore it is used in the main memory. They are in the form of semiconductor RAMs.
Explanation: DRAM stands for dynamic random access memory. It is denser than SDRAM (Static) and therefore it is used in the main memory. They are in the form of semiconductor RAMs.
Q.19 A non-erasable disk that stores digitized audio information is _____
a) CD
b) CD-ROM
c) DVD-R
d) DVD-RW
a) CD
b) CD-ROM
c) DVD-R
d) DVD-RW
Answer: a
Explanation: A compact disk stores digitized audio information. The standard system uses 12 cm disks and can record more than 60 minutes of uninterrupted playing games.
Explanation: A compact disk stores digitized audio information. The standard system uses 12 cm disks and can record more than 60 minutes of uninterrupted playing games.
Q.20 The first practical form of Random Access Memory was the __________
a) SSEM
b) Cathode Ray Tube
c) William’s Tube
d) Thomas’s Tube
a) SSEM
b) Cathode Ray Tube
c) William’s Tube
d) Thomas’s Tube
Answer: c
Explanation: The first practical form of RAM was William’s Tube made in 1947. It stored data as electrically charged spots on the face of a Cathode Ray Tube.
Explanation: The first practical form of RAM was William’s Tube made in 1947. It stored data as electrically charged spots on the face of a Cathode Ray Tube.
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