Computer Awareness Answers Part - 2
21.Correct Answer: D [All of the above]
Notes:
Personal Computers in the 2010s as compared to earlier models had access to a wide range of softwares viz. commercial softwares, freeware, free and open source software etc.
Personal Computers in the 2010s as compared to earlier models had access to a wide range of softwares viz. commercial softwares, freeware, free and open source software etc.
22.Correct Answer: A [Pier Giorgio Perotto]
Notes:
Pier Giorgio Perotto had first developed the magnetic card system for program storage. It is a type of card which can store data by modification of tiny iron-based magnetic particles on a band of magnetic material on a card.
Pier Giorgio Perotto had first developed the magnetic card system for program storage. It is a type of card which can store data by modification of tiny iron-based magnetic particles on a band of magnetic material on a card.
23.Correct Answer: D [All of the above]
Notes:
A workstation is a high-end personal computer which was originally made for technical, mathematical and scientific applications. They are used for computer-aided design, drafting and modelling, computation-intensive scientific and engineering calculations, processing of images etc.
A workstation is a high-end personal computer which was originally made for technical, mathematical and scientific applications. They are used for computer-aided design, drafting and modelling, computation-intensive scientific and engineering calculations, processing of images etc.
24.Correct Answer: A [Central Processing Unit]
Notes:
The control unit and ALU usually are referred to as a processor, or central processing unit (CPU). The operational speed of the CPU primarily determines the speed of the computer as a whole.
The control unit and ALU usually are referred to as a processor, or central processing unit (CPU). The operational speed of the CPU primarily determines the speed of the computer as a whole.
25.Correct Answer: A [Control Unit]
Notes:
Control unit is known as the brain of the computer. The control unit (CU) is a component of a computer’s central processing unit (CPU) that directs the operation of the processor.
Control unit is known as the brain of the computer. The control unit (CU) is a component of a computer’s central processing unit (CPU) that directs the operation of the processor.
26.Correct Answer: D [All of the Above]
27.Correct Answer: C [Universal disk format]
Notes:
Universal Disk Format (UDF) is a file system for computer data storage for a broad range of media. UDF is developed and maintained by the Optical Storage Technology Association (OSTA).
Universal Disk Format (UDF) is a file system for computer data storage for a broad range of media. UDF is developed and maintained by the Optical Storage Technology Association (OSTA).
28.Correct Answer: D [All of the Above]
Notes:
Computer hardware includes the physical, tangible components of a computer system .It includes CPU, Cabinet, Graphic Card, Sound Card, Motherboard, Speaker, Keyboard, Mouse, Desktop etc.
Computer hardware includes the physical, tangible components of a computer system .It includes CPU, Cabinet, Graphic Card, Sound Card, Motherboard, Speaker, Keyboard, Mouse, Desktop etc.
29.Correct Answer: A [Process]
Notes:
A process is the instance of a computer program that is being executed. It contains the program code and its activity. A process may be made up of multiple threads of execution that execute instructions concurrently.
A process is the instance of a computer program that is being executed. It contains the program code and its activity. A process may be made up of multiple threads of execution that execute instructions concurrently.
30.Correct Answer: A [Richard Stallman]
Notes:
In 1983, Richard Stallman launched the GNU Project to write a complete operating system free from constraints on use of its source code.
In 1983, Richard Stallman launched the GNU Project to write a complete operating system free from constraints on use of its source code.
31.Correct Answer: C [Virtual memory]
Notes:
Virtual memory is that uses hardware and software to allow a computer to compensate for physical memory shortages by temporarily transferring data from random access memory (RAM) to disk storage.
Virtual memory is that uses hardware and software to allow a computer to compensate for physical memory shortages by temporarily transferring data from random access memory (RAM) to disk storage.
32.Correct Answer: B [Random Access]
Notes:
Random-access memory is a form of computer data storage that stores data and machine code currently being used. A random-access memory device allows data items to be read or written in almost the same amount of time irrespective of the physical location of data inside the memory.
Random-access memory is a form of computer data storage that stores data and machine code currently being used. A random-access memory device allows data items to be read or written in almost the same amount of time irrespective of the physical location of data inside the memory.
33.Correct Answer: C [Laser]
Notes:
A blue laser is a laser that emits electromagnetic radiation with a wavelength between 360 and 480 nanometers, which the human eye sees as blue or violet. Some of the most commercially common blue lasers are the diode lasers used in Blu-ray applications.
A blue laser is a laser that emits electromagnetic radiation with a wavelength between 360 and 480 nanometers, which the human eye sees as blue or violet. Some of the most commercially common blue lasers are the diode lasers used in Blu-ray applications.
34.Correct Answer: B [Field Replaceable Unit]
Notes:
FRU stands for Field Replaceable Unit. It is a printed circuit board that can be quickly and easily removed from a computer and replaced by the user or a technician without having to send the entire product or system to a repair facility.
FRU stands for Field Replaceable Unit. It is a printed circuit board that can be quickly and easily removed from a computer and replaced by the user or a technician without having to send the entire product or system to a repair facility.
35.Correct Answer: A [CRT]
Notes:
A cathode ray tube (CRT) is a specialized vacuum tube in which images are produced when an electron beam strikes a phosphorescent surface. Most desktop computer displays make use of CRTs.
A cathode ray tube (CRT) is a specialized vacuum tube in which images are produced when an electron beam strikes a phosphorescent surface. Most desktop computer displays make use of CRTs.
36.Correct Answer: A [Impact Printer]
Notes:
Impact printer refers to printers that work by banging a head or needle against an ink ribbon to make a mark on the paper. This includes dot-matrix printers, daisy-wheel printers, and line printers.
Impact printer refers to printers that work by banging a head or needle against an ink ribbon to make a mark on the paper. This includes dot-matrix printers, daisy-wheel printers, and line printers.
37.Correct Answer: D [Both a and b]
Notes:
There are two main types of plotters – drum and flatbed plotters. Drum plotters spin the paper back and forth on a cylindrical drum while the ink pens move left and right. The drum plotters are generally smaller than flatbed plotters.
There are two main types of plotters – drum and flatbed plotters. Drum plotters spin the paper back and forth on a cylindrical drum while the ink pens move left and right. The drum plotters are generally smaller than flatbed plotters.
38.Correct Answer: D [All of the Above]
Notes:
Pen Drive is also known as a USB flash drive, thumb drive, pen drive, gig stick, flash stick, jump drive, disk key. It is a data storage device that includes flash memory with an integrated USB interface. It is typically removable, rewritable and much smaller than an optical disc.
Pen Drive is also known as a USB flash drive, thumb drive, pen drive, gig stick, flash stick, jump drive, disk key. It is a data storage device that includes flash memory with an integrated USB interface. It is typically removable, rewritable and much smaller than an optical disc.
39.Correct Answer: D [Both b and c]
Notes:
Modularization is a technique to divide a software system into multiple discreet modules, which are expected to carry out task independently.
Modularization is a technique to divide a software system into multiple discreet modules, which are expected to carry out task independently.
40.Correct Answer: B [Linker]
Notes:
A linker is a computer program that takes one or more object files generated by a compiler and combines them into one, executable program. The compiler automatically invokes the linker as the last step in compiling a program.
A linker is a computer program that takes one or more object files generated by a compiler and combines them into one, executable program. The compiler automatically invokes the linker as the last step in compiling a program.