Find out who is not the inventor of transistors among following names
John Burdeen
William Shockley
Walter Brattain
Lee de Forest
Correct Answer :
D. Lee de Forest
Related Questions
A device for converting handwritten impressions into coded characters & positional coordinates for input to a computer is
Touch panel
Mouse
Wand
Writing tablet
Who invented Integrated Circuits?
Jack Kilby
Robert Noyce
Both of above
None of above
Which of the following programming language started from second generation?
Cobol
BASIC
C
LISP
A high quality CAD system uses the following for printing drawing and graphs
Dot matrix printer
Digital plotter
Line printer
All of the above
The first digital computer built with IC chips was known as
IBM 7090
Apple ? 1
IBM System / 360
VAX-10
The silicon chips used for data processing are called
RAM chips
ROM chips
Micro processors
PROM chips
A paper printout of a document is known as
Softcopy output
Hardcopy output
Permanent Output
All of above
Registers, which are partially visible to users and used to hold conditional, are known as
PC
Memory address registers
General purpose register
Flags
The most important advantage of a video disk is
Compactness
Potential capacity
Durability
Cost effectiveness
What was the computer invented by Attanasoff and Clifford?
None of above
Mark I
Z3
ABC
Which of the following memories must be refreshed many times per second?
Static RAM
Dynamic RAM
EPROM
ROM
The report card and merit list forms the
Output data
Data processing
Central Processing
Input data
Malicious software is known as:
Bad ware.
Malware.
Malicious ware.
Illegal ware.
Which statement is valid about magnetic tape?
It is a plastic ribbon
It is coated on both sides with iron oxide
It can be erased and reused
All of 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
The capacity of 3.5 inch floppy disk is
1.40 MB
1.44 GB
1.40 GB
1.44 MB
A kind of scanner MICR is the short form of
Magnetic Ink Character Reader
Magnetic Ink Code Reader
Magnetic Ink Cases Reader
None
Which of the following are input devices?
Keyboard
Mouse
Card reader
Any of these
Which of the following is a class of computers based on model?
Digital Computer
Hybrid Computers
Analog Computers
AT Computers
Integrated Circuits (ICs) are related to which generation of computers?
First generation
Second generation
Third generation
Fourth generation
Which of the following is not a form of data?
numbers and characters
images
sound
none of above
Mnemonic a memory trick is used in which of the following language?
Machine language
Assembly language
High level language
None of above
The first firm to mass-market a microcomputer as a personal computer was
IBM
Super UNIVAC
Radio Sharks
Data General Corporation
Which of the following is the smallest storage?
Megabyte
Gigabyte
Terabyte
None of these
Which of the following is not the classification of computers based on application?
Electronic Computers
Analog Computers
Digital Computers
Hybrid Computers
Which of the following is the 1's complement of 10?
1
110
11
10
Mostly which of the following device is used to carry user files?
Floppy Disk
Hard Disk
RAM
CDROM
Which 8-bit chip was used in many of today's TRS-80 computers?
Z-8000
Motorola 6809
Z-8808
Z-80
Circular division of disks to store and retrieve data are known as
tracks
sectors
cycles
rings
The first firm to mass-market a microcomputer as a personal computer was
IBM
Super UNIVAC
Radio Shaks
Data General Corporation