A pen shaped device which can sense light, and is used to point at spots on a video screen.
Mouse
Light pen
Joystick
Plotter
Correct Answer :
B. Light pen
Related Questions
Compression of digital data for efficient storage is
Buffer
CPU
Packing
Field
Which of the following is used as a primary storage device?
Magnetic drum
Hard Disks
Floppy
All of above
Magnetic disks are the most popular medium for
None of above
Both of above
Sequential access
Direct access
Which is not consisted in a processor
ALU
CU
Memory
Registers
Which programming languages are classified as low level languages?
BASIC, COBOL, Fortran
Prolog
C, C++
Assembly languages
What is the responsibility of the logical unit in the CPU of a computer?
To produce result
To compare numbers
To control flow of information
To do math's works
Which of the following does not affect the resolution of a video display image?
Bandwidth
Raster scan rage
Vertical and horizontal lines of resolution
Screen size
An error in software or hardware is called a bug. What is the alternative computer jargon for it?
Leech
Squid
Slug
Glitch
Which device can understand difference between data & programs?
Input device
Output device
Memory
Microprocessor
RAM is also called as
Read / Write Memory
Long Memory
Permanent Memory
Primary Memory
The arranging of data in a logical sequence is called
Sorting
Classifying
Reproducing
Summarizing
A technique used by codes to convert an analog signal into a digital bit stream is known as
Pulse code modulation
Pulse stretcher
Query processing
Queue management
What are the stages in the compilation process?
Feasibility study, system design and testing
Implementation and documentation
Lexical Analysis, syntax analysis, and code generation
None of the above
174. When was the X window system born?
1984
1989
1988
1990
When was the X window system born?
1984
1989
1988
1990
When was the world's first laptop computer introduced in the market and by whom?
Hewlett-Packard
Epson, 1981
Laplink traveling software In1982
Tandy model-2000, 1985
________ is the key to close a selected drop -down list; cancel a command and close a dialog box.
TAB
SHIFT
ESC
F10
The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately
16 digits
6 digits
9 digits
All of above
The two kinds of main memory are:
Primary and secondary
Random and sequential
ROM and RAM
All of above
A computer which CPU speed around 100 million instruction per second and with the word length of around 64 bits is known as
Super computer
Minicomputer
Micro computer
Macro computer
Which of the following is NOT one of the four major data processing functions of a computer?
gathering data
processing data into information
analysing the data or information
storing the data or information
Before a disk can be used to store datA. It must be
Formatted
Reformatted
Addressed
None of the above
The difference between people with access to computers and the Internet and those without this access is known as the :
digital divide
Internet divide
Web divide
E-illiteracy
Apple company used chips from for its computers
Intel
Motorola
Both of above
None of above
A group of magnetic tapes, videos or terminals usually under the control of one master is
Cylinder
Cluster
Surface
Track
When a computer is switched on, the booting process performs
Integrity Test
Power-On Self-Test
Correct Functioning Test
Reliability Test
RJ45 UTP cable has ________ Cables.
2 pair
3 pair
4 pair
5 pair
Which is a unit representing the no bits of discrete.
Baud
Byte
Bit
All of the above
The word processing task associated with changing the appearance of a document is
Editing
Writing
Formatting
All of above
What type of computers are client computers (most of the time) in a client-server system?
Mainframe
Mini-computer
Microcomputer
PDA