When was vacuum tube invented?
1900
1906
1910
1880
Correct Answer :
B. 1906
Related Questions
What is a brand?
The name of companies that made computers
The name of product a company gives to identify its product in market
A name of class to indicate all similar products from different companies
All of above
In what respect computers are superior to human beings?
Diligence
Intelligence
Both of above
None of above
How many bit code is used by Murray code for TELEPRINTER machines.
4
5
9
25
The first computers were programmed using
assembly language
machine language
source code
object code
Why ABC is considered electro-mechanical computer?
Because it was invented before electronic computers were developed
Because there are wheels, drums, bars to rotate and move to produce result
Because they use the flow of electrons in different component
None of above
What type of computers are client computers (most of the time) in a client-server system?
Mainframe
Mini-computer
Microcomputer
PDA
________ Is the functional key to display Save-As box.
F5
F6
F9
F12
Touch Screen is________
Input device
Output device
Both a & b above
None of these
Who suggested Stored Program Concept
John Mauchley
J.P. Eckert
John Neumann
Joseph Jacquard
The difference between memory and storage is that memory is ______ and storage is
Temporary, permanent
Permanent, temporary
Slow, fast
All of above
Which language is directly understood by the computer without translation program?
Machine language
Assembly language
High level language
None of above
RAM can be treated as the ________ for the computer's processor
factory
operating room
waiting room
planning room
Compilers and interpreters are themselves
High-level language
Codes
Programs
Mnemonics
Which of the following is valid statement?
Data in itself is useless unless it is processed
The data that is processed is called a program
The data which is not yet processed is information
Information is processed by computer to generate data.
Easily reloctable language is
Machine language
Assembly language
High level language
Medium level language
ABC is a
Special purpose computer
General purpose computer
All Purpose Computer
None of above
The term gigabyte refers to
1024 bytes
1024 kilobytes
1024 megabytes
1024 gigabyte
Which type of system puts the user into direct conversation with the computer through a keyboard?
Real time processing
Interactive computer
Batch processing
Time sharing
Hard disk is coated in both side with
Magnetic metallic oxide
Optical metallic oxide
Carbon layer
All of the above
The amount of vertical space between lines of text in a document is called
double-space
line spacing
single space
vertical spacing
hat produces useful information out of data?
Computer
Processing
Programming
none of above
Which printer is very commonly used for desktop publishing?
Laser printer
Inkjet printer
Daisywheel printer
Dot matrix printer
How many symbols exist in Baudot code?
32
116
58
76
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
Examples of output devices are
Screen
Printer
Speaker
All of these
CD-ROM is a
Semiconductor memory
Memory register
Magnetic memory
None of above
The ________ is the amount of data that a storage device can move from the storage medium to the Computer per second
data migration rate
data digitizing rate
data transfer rate
data access rate
Which of the following are the best units of data on an external storage device?
Bits
Bytes
Hertz
Clock cycles
The personnel who deals with the computer & its management put together are called
Software
Human ware
Firmware
Hardware
What do you call the translator which takes assembly language program as input & produce machine language code as output?
Compiler
Interpreter
Debugger
Assembler