When was vacuum tube invented?
1900
1906
1910
1880
Correct Answer :
B. 1906
Related Questions
Where as a computer mouse moves over the table surface, the trackball is
Stationary
Difficult to move
Dragged
Moved in small steps
How many bit code is used by Murray code for TELEPRINTER machines.
4
5
9
25
The computer abbreviation KB usually means
Key Block
Kernel Boot
Kilo Byte
Kit Bit
The subject of cybernetics deals with the science of
Genetics
Control and communication
Molecular biology
Biochemistry
What is the name of an application program that gathers user information and sends it to someone through the Internet?
A virus
Spy bot
Logic bomb
Security patch
The translator program used in assembly language is called
Compiler
Interpreter
Assembler
Translator
________ are used to identify a user who returns to a Website
Cookies
Plug-ins
Scripts
ASPs
Excessive parallel processing is related to
First generation
Fourth generation
Fifth Generation
Third generation
Which of the following is the largest unit?
data
field
record
database file
________ Computers are of large size
Micro
Mainframe
Super
Mini
What does DMA stand for?
Distinct Memory Access
Direct Memory Access
Direct Module Access
Direct Memory Allocation
ASCII is a coding system that provides
256 different characters
512 different characters
1024 different characters
128 different characters
Computer is free from tiresome and boardroom. We call it
Accuracy
Reliability
Diligence
Versatility
Networking such as LAN, MAN started from
First generation
Second generation
Third generation
Fourth generation
Which of the following is true?
Mark I was 8 feet long
Mark I was 2 feet long
Mark I was 40 feet long
None of above
Which of the following is used only for data entry and storage, and never for processing?
Mouse
Dumb terminal
Micro computer
Dedicated data entry system
A program that converts computer data into some code system other than the normal one is known as
Encoder
Simulation
Emulator
Coding
John Napier invented Logarithm in
1614
1617
1620
None of above
Hardware or software designed to guard against unauthorized access to a computer network is known as a(n):
Hacker-proof program.
Firewall.
Hacker-resistant server.
Encryption safe wall.
In the IBM PC-At, what do the words AT stand for
Additional Terminals
Advance technology
Applied technology
Advanced terminology
Assembly language started to be used from
first generation computers
second generation computers
third generation computers
fourth generation computers
The digital computer was developed primarily in
USSR
Japan
USA
UK
A type of channel used to connect a central processor and peripherals which uses multiplying is known as
Modem
Network
Multiplexer
All of the above
A stand-alone system which produces one page of printed output at a time is
Page printer
Line printer
Laser printer
Dot matrix printer
In a computer _____ is capable to store single binary bit.
Capacitor
Flip flop
Register
Inductor
Father of "C" programming language
Dennis Ritchie
Prof John Keenly
Thomas Kurtz
Bill Gates
High density double sided floppy disks could store of data
1.40 MB
1.44 GB
1.40 GB
1.44 MB
Pick the one that is used for logical operations or comparisons such as less than equal to or greater than.
Arithmetic and Logic Unit
Control Unit
Both of above
None of above
Which of the following is an example of fifth generation computer?
PIM/m
ICL 2950
IBM 1401
None of above
Computer is free from tiresome and boardroom. We call it
Accuracy
Reliability
Diligence
Versatility