Which technology is used in Compact disks?
Mechanical
Electrical
Electro Magnetic
Laser
Correct Answer :
D. Laser
Related Questions
The microcomputer, Intel MCS-80 is based on the widely used Intel
8080 microprocessor
8085 microprocessor
8086 microprocessor
8082 microprocessor
The list of coded instructions is called
Computer program
Algorithm
Flowchart
Utility programs
Daisy wheel, Drum, chain etc are the ________
Flow chart
Mouse
Key board
Printers
Magnetic tape can serve as
Secondary storage media
Output media
Input media
All of the above
Which statement is valid about computer program?
It is understood by a computer
It is understood by programmer
It is understood user
Both a & b
Which programming language is based on Algol 60.
PILOT
SNOBOL
ADA
SIMULA
The commonly used standard data code to represent alphabetical, numerical and punctuation characters used in electronic data processing system is called
ASCII
EBCDIC
BCD
All of above
Why are vacuum tubes also called valves?
Because they can amplify the weak signals and make them strong
Because they can stop or allow the flow of current
Both of above
None of above
The tracks on a disk which can be accessed without repositioning the R/W heads is
Surface
Cylinder
Cluster
All of the above
A memory that holds micro programs is
Core memory
ROM
RAM
Control memory
Second Generation computers were developed during
1949 to 1955
1956 to 1965
1965 to 1970
1970 to 1990
The common name for the crime of stealing passwords is:
Jacking.
Identity theft.
Spoofing.
Hacking.
What are the computers called that performs calculations and comparisons usually in the binary numbering system?
Analog Computers
Digital Computers
Hybrid Computers
None of above
IBM 1401 is the first computer to enter in Nepal. It belonged to
First Generation
Second Generation
Third Generation
Froth Generation
High density double sided floppy disks could store _____ of data
1.40 GB
1.44 MB
1.40 MB
1.44 GB
VGA is
Video Graphics Array
Visual Graphics Array
Volatile Graphics Array
Video Graphics Adapter
Which of the following registers is used to keep track of address of the memory location where the next instruction is located?
Memory address registers
Memory data register
Instruction register
Program counter
Which American computer company is called Big Blue?
Microsoft
Compaq Corp
IBM
Tandy Svenson
Light pen and joystick are________
Algorithm
Input devices
Output devices
Portals
Which of the following memories allows simultaneous read and write operations?
ROM
RAM
EPROM
None of above
Which of the following generation computers had expensive operation cost?
First
Second
Third
Fourth
What is a light pen?
A Mechanical Input device
Optical input device
Electronic input device
Optical output device
Which of the following memories has the shortest access times?
Cache memory
Magnetic bubble memory
Magnetic core memory
RAM
How many numbers could ENIAC store in its internal memory
100
20
80
40
_______ computers are also called personal computers
Mainframe Computer
Mini Computers
Micro Computers
Super Computers
The personnel who deals with the computer & its management put together are called
Software
Human ware
Firmware
Hardware
Which is the largest computer?
Mainframe Computer
Mini Computers
Micro Computers
Super Computers
The term ________ designates equipment that might be added to a computer system to Enhance its functionality.
digital device
system add-on
disk pack
peripheral device
RAM can be treated as the ________ for the computer's processor
factory
operating room
waiting room
planning room
Which of the following is not anti-viruses software?
NAV
F-Prot
Oracle
McAfee