concepts set 3 Detailed Explanation And More Example
MOST IMPORTANT computer mcq - 3 EXERCISES
The following question based on fundamental & concepts of computer topic of computer mcq
(a) a word processing software
(b) an operating system
(c) an attached printer
(d) a virus checking program
e) None of these
The correct answers to the above question in:
Answer: (b)
An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs.
An Operating System (OS) is an interface between a computer user and computer hardware. An operating system is software which performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers.
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Read more fundamental concepts Based Computer Questions and Answers
Question : 1
______is used for scanning the pictures and putting them in digitized form in the computer:
a) CD-ROM
b) Plotter
c) Scanner
d) None of The Above
Answer »Answer: (c)
A scanner, image scanner, or optical scanner is a hardware input device that optically "reads" an image and converts it to a digital signal. For example, a scanner may be used to convert a printed picture, drawing, or document (hard copy) to a digital file that can be edited on a computer
Question : 2
DMA stands for :
a) Direct Memory Access
b) Direct Module Access
c) Direct Memory Access
d) None of The Above
Answer »Answer: (a)
Direct memory access (DMA) is a method that allows an input/output (I/O) device to send or receive data directly to or from the main memory, bypassing the CPU to speed up memory operations.
Question : 3
The basic goal of a computer process is to convert data into
a) graphs
b) tables
c) files
d) information
e) diagram
Answer »Answer: (d)
As a result, data processing refers to the act of converting raw data into usable information.
The data we enter is unprocessed, and the computer transforms it into valuable data.
Data manipulation by a computer is called data processing. It entails the translation of raw data into a machine-readable format, data flow via the CPU and memory to output devices, and output formatting or modification.
As a result, data processing refers to the act of converting raw data into usable information.
The data we enter is unprocessed, and the computer transforms it into valuable data.
Data manipulation by a computer is called data processing. It entails the translation of raw data into a machine-readable format, data flow via the CPU and memory to output devices, and output formatting or modification.
Question : 4
The Second Generation computer was based on:
a) Vacuum Chips
b) Silicon Chips
c) Transistor
d) Bio Chips
e) None of The Above
Answer »Answer: (c)
Transistors replaced vacuum tubes and ushered in the second generation of computers. The transistor was invented in 1947 but did not see widespread use in computers until the late 1950s. The transistor was far superior to the vacuum tube, allowing computers to become smaller, faster, cheaper, more energy-efficient and more reliable than their first-generation predecessors.
Though the transistor still generated a great deal of heat that subjected the computer to damage, it was a vast improvement over the vacuum tube. Second-generation computers still relied on punched cards for input and printouts for output.
Second-generation computers moved from cryptic binary machine language to symbolic, or assembly, languages, which allowed programmers to specify instructions in words. High-level programming languages were also being developed at this time, such as early versions of COBOL and FORTRAN.
Question : 5
Computers that are portable and convenient for users who travel are known as
a) supercomputers
b) planners
c) minicomputers
d) file servers
e) laptops
Answer »Answer: (e)
Question : 6
________ is not a microcomputer
a) Desktop computer
b) Tablet PC
c) Handled computer
d) Mainframe computer
e) Laptop
Answer »Answer: (d)
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