IT &computer MCQ section 2 MCQ Questions & Answers Detailed Explanation
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The following question based on IT & computer topic of general awareness mcq
(a) Ctrl + Shift + Enter
(b) Ctrl + Alt + Delete
(c) Ctrl + Shift + Escape
(d) Ctrl + Alt + Arrow key
The correct answers to the above question in:
Answer: (b)
The three-finger salute refers to the original PC-compatible system command to reboot or restart a computer by pressing three keys simultaneously: Control, Alt and Delete.
The three-key combination of Control-Alt-Delete is specifically designed to be impossible to execute with one hand in order to avoid the potential for accidental reboots. It was developed by David Bradley.
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Read more it and computer Based General Awareness Questions and Answers
Question : 1
What is the process of defining tables called ?
a) Index definition
b) Data definition
c) Data Normalisation
d) Data administration
Answer »Answer: (a)
The process is known as index definition. The order in which columns are listed in the index definition is important.
Question : 2
What is the size of Floppy Diskette which is used normally ?
a) 4"
b) 3½"
c) 5"
d) 3"
Answer »Answer: (b)
A floppy disk is a thin magnetic-coated disk contained in a flexible or semi-rigid protective jacket. Data is stored in tracks and sectors. The floppy disks are usually 3.5" in size.
However, older floppy disks may be in use; these would be 5.25" in size. Double-sided high density 3.5" disks can hold 1.44 Mb of data.
Question : 3
The name “modem” is derived from
a) modern demodulator
b) modern demarkator
c) modulator demand
d) modulator demodulator
Answer »Answer: (d)
A modem (modulator-demodulator) is a device that modulates an analogue carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information.
The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data.
Question : 4
Where are programs and data to be used by the computer available?
a) Storage
b) Processing Unit
c) Output
d) Input
Answer »Answer: (a)
In a computer, storage is the place where data is held in an electromagnetic or optical form for access by a computer processor. It is a technology consisting of computer components and recording media used to retain digital data. It is a core function and fundamental component of computers.
Question : 5
What are the signals that inform the operating system that some activity has taken place, called ?
a) Events
b) Informers
c) Interrupts
d) Handlers
Answer »Answer: (d)
In computer programming, an event handler is an asynchronous callback subroutine that handles inputs received in a program. Each event is a piece of application-level information from the underlying framework, typically the GUI toolkit.
GUI events include key presses, mouse movement, action selections, and timers expiring. Event handlers are a central concept in event-driven programming.
Question : 6
All forms of ROM are also known as _____.
a) Firmware
b) Freeware
c) Middleware
d) Shareware
Answer »Answer: (a)
As the name suggests, read-only memory, or ROM, stores information that can only be read. It contains the basic instructions for what needs to happen when a computer is powered on. This is typically referred to as the firmware of a computer.
The firmware represents the basic code to get the computer started. Once the computer is up and running, the CPU takes over. Firmware is also referred to as BIOS, or basic input/output system.
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IT &computer MCQ section 1
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IT &computer MCQ section 7
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