The main electronic component used in first generation computers was
Transistors
Vacuum Tubes and Valves
Integrated Circuits
None of above
Correct Answer :
B. Vacuum Tubes and Valves
Related Questions
WAN stands for
Wap Area Network
Wide Area Network
Wide Array Net
Wireless Area Network
To produce high quality graphics (hardcopy) in color, you would want to use a/n
RGB monitor
Plotter
Ink-jet printer
Laser printer
Daisy wheel printer is a type of
Matrix printer
Impact printer
Laser printer
Manual printer
Which one of the following input device is user- programmable?
Dumb terminal
Smart terminal
VDT
Intelligent terminal
The first web browser is
Mosaic
Netscape
Internet explorer
Collabra
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
When was the worlds first laptop computer introduced in the market and by whom?
Hewlett-Packard, 1980
Epson, 1981
Laplink Traveling Software Inc, 1982
Tandy Model-200, 1985
A computer program that converts an entire program into machine language at one time is called a/ an
Interpreter
simulator
characters
compiler
Analog computer works on the supply of
Continuous electrical pulses
Electrical pulses but not continuous
Magnetic strength
None of the above
A computer can solve more than one kind of problem. This is related to which of the following characteristics?
Accuracy
Reliability
Versatility
Automatic
Which of the following is not a form of data?
numbers and characters
images
sound
none of above
The brain of any computer system is
ALU
Memory
CPU
Control unit
________ computers operate essentially by counting
Portable computer
Hybrid computer
Analog computer
Digital computer
What characteristic of read-only memory (ROM) makes it useful?
ROM information can be easily updated
Data in ROM is non-volatile, that is, it remains there even without electrical power.
ROM provides very large amounts of inexpensive data storage.
ROM chips are easily swapped between different brands of computers.
A systems programming language for microcomputers in the Intel family is
PL/C
PL/CT
PL/M
PLA
The Stepped Reckoner was invented by
John Napier
William Oughtred
Gottfried Leibnitz
Blaise Pascal
A common boundary between two systems is called
Interdiction
Interface
Surface
None of the above
A typical personal computer used for business purposes would have of RAM.
4 KB
16 K
64 K
256 K
Which access method is used for obtaining a record from a cassette tape?
Direct
Sequential
Random
All of the above
Through which device the main components of the computer communicate with each other?
Keyboard
System Bus
Monitor
Memory
A technique used by codes to convert an analog signal into a digital bit stream is known as
Pulse code modulation
Pulse stretcher
Query processing
Queue management
Malicious software is known as:
Bad ware.
Malware.
Malicious ware.
Illegal ware.
One computer that is not considered a portable is
Minicomputer
Laptop computer
Notebook computer
All of above
The report card and merit list forms the
Output data
Data processing
Central Processing
Input data
John Napier invented Logarithm in
1614
1617
1620
None of above
The common name for the crime of stealing passwords is:
Jacking.
Identity theft.
Spoofing.
Hacking.
When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits?
ANSI
ASCII
EBCDIC
ISO
What is the number of read-write heads in the drive for a 9- trac magnetic tape?
9
16
18
27
What do you call the programs that are used to find out possible faults and their causes?
Operating system extensions
Cookies
Diagnostic software
Boot diskettes
Who is credited with the idea of using punch cards to control patterns in a waving machine?
Pascal
Hollerith
Babbage
Jacquard