Which of the following have low failure rate?
Mechanical devices
electronic devices
electro-mechanical devices
None of above
Correct Answer :
B. electronic devices
Related Questions
Which electronic component was made out of semiconductor material?
Vacuum tubes
Transistors
ICs
All of above
The terminal device that functions as a cash register, computer terminal, and OCR reader is the:
Data collection terminal
OCR register terminal
Video Display terminal
POS terminal
Who designed the first electronics computer ? ENIAC/
Von Neumann
Joseph M Jacquard
J. P. Eckert and J. W. Mauchly
All of above
The list of coded instructions is called
Computer program
Algorithm
Flowchart
Utility programs
The output quality of a printer is measured by
Dots per inch
Dot per sq. inch
Dots printed per unit time
All of above
Which was the most popular first generation computer?
IBM 1650
IBM 360
IBM 1130
IBM 2700
On-line real time systems become popular in ________ generation
First Generation
Second Generation
Third Generation
Fourth Generation
A system is
an integration of different units so as to achieve an objective
input unit
input and output unit
input, output and storage units
What is the other name for programmed chip?
RAM
ROM
LSIC
PROM
Any device that performs signal conversion is
Modulator
Modem
Keyboard
Plotter
You use a(n) ________, such as a keyboard or mouse, to input information
output device
input device
storage device
processing device
Microprocessors can be used to make
Computer
Digital systems
CalculatorS
All of the above
The value of each bead in heaven is
1
3
5
7
The computer that can input analog signals and return result in digital form
Analog Computers
Digital Computers
Hybrid Computers
Mainframe Computers
What is meant by a dedicated computer?
Which is used by one person only?
Which is assigned one and only one task?
Which uses one kind of software?
Which is meant for application software?
A modern digital computer has
Extremely high speed
Large memory
Almost unlimited array
All of the above
Symbolic languages were developed in
1962
1950
1974
1980
Which device is used to backup the data?
Floppy Disk
Tape
Network Drive
All of the above
The first firm to mass-market a microcomputer as a personal computer was
IBM
Super UNIVAC
Radio Sharks
Data General Corporation
Hard disk is coated in both side with
Magnetic metallic oxide
Optical metallic oxide
Carbon layer
All of the above
A paper printout of a document is known as
Softcopy output
Hardcopy output
Permanent Output
All of above
Most important advantage of an IC is its
Easy replacement in case of circuit failure
Extremely high reliability
Reduced cost
Low power consumption
What was the main disadvantage of vacuum tubes?
They were larger in size
They consumed a lot of electricity
They produced heat and often burned out
The operation cost was high
To move a copy of file from one computer to another over a communication channel is called?
File transfer
File encryption
File modification
File copying
Magnetic disks are the most popular medium for
Direct access
Sequential access
Both of above
None of above
Symbolic logic was discovered by
George Boole
Herman Hollerith
Van Neumann
Basic Pascal
In 1999, the Melissa virus was a widely publicised:
E-mail virus.
Macro virus.
Trojan horse.
Time bomb.
Which part of the computer is used for calculating and comparing?
Disk unit
Control unit
ALU
Modem
Who used punched cards practically for the first time in the history of computers?
Charles Babbage
Dr. Herman Hollerith
Howard Aikin
Joseph Jacquard
High density double sided floppy disks could store _____ of data
1.40 GB
1.44 MB
1.40 MB
1.44 GB