The digital computer was developed primarily in
USSR
Japan
USA
UK
Correct Answer :
C. USA
Related Questions
Napier's Bones were invented in
1614
1617
1620
None of above
ABC is a
Special purpose computer
General purpose computer
All Purpose Computer
None of above
Which of the following helps to protect floppy disks from data getting accidentally erased?
Access notch
Write-protect notch
Entry notch
Input notch
Which of the following device was not invented by Babbage?
Pascaline
Difference Engine
Analytical Engine
None of above
VDU is also called
Screen
Monitor
Both 1 & 2
printer
The first electronic general purpose digital computer built by Eckert and Mauchly called ENIAC did not work on the stored program concept. How many numbers could it store in its internal memory?
100
20
40
80
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
The device used to carry digital data on analogue lines is called as
Modem
Multiplexer
Modulator
Demodulator
Before a disk drive can access any sector record, a computer program has to provide the records disk address. What information does this address specify?
Track number
All of above
Sector number
Surface number
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
Operating system, editors, and debuggers comes under?
System Software
Application Software
Utilities
None of the above
A term associated with the comparison of processing speeds of different computer system is:
EFTS
MPG
MIPS
CPS
A characteristic of card systems is:
Slowness in processing data
Using cards as records of transactions
Needing a larger DP staff
All of the above
EEPROM stands for
Electrically Erasable Programmable Read Only Memory
Easily Erasable Programmable Read Only Memory
Electronic Erasable Programmable Read Only Memory
None of the above
A language which is close to that used within the computer is
High-level language
Assembly language
Low-level language
All of the above
Which of the following are input devices?
Keyboard
Mouse
Card reader
Any of these
Which device can understand difference between data & programs?
Input device
Output device
Memory
Microprocessor
Access time is
seek time + latency time
seek time
seek time ? latency time
latency time
Word length of a Personal Computer is ___
4 bits
8 bits
16 bits
64 bits
The term referring to evacuating the content of some part of the machine is known as
Dump
Enhancement
Down
Compiler
A modern electronic computer is a machine that is meant for
Doing quick mathematical calculations
Input storage, manipulation of outputting of data
Electronic data processing
Performing repetitive tasks accurately
Which of the following is the largest unit?
data
field
record
database file
The digital computer was developed primarily in
USSR
Japan
USA
UK
What is a light pen?
Mechanical Input device
Optical input device
Electronic input device
Optical output device
Which of the following is input device?
scanner
speaker
monitor
projector
The full form of ALU is
Arithmetic Logic Unit
Array Logic Unit
Application Logic Unit
None of above
EEPROM stands for
Electrically Erasable Programmable Read Only Memory
Electronic Erasable Programmable Read Only Memory
Easily Erasable Programmable Read Only Memory
Easily Erasable Programmable Read Only Memory
Which computer memory is used for storing programs and data currently being processed by the CPU?
Mass memory
Internal memory
Non-volatile memory
PROM
An optical input device that interprets pencil marks on paper media is
OMR
Punch card reader
Optical scanners
Magnetic tape
The personal computer industry was started by
IBM
Apple
Compaq
HCL