Knowledge about COMPUTER
 • Half
byte = 1nibble = 4 bits
 • Bit
means Binary Digit
 • 1
byte = 8 bits
 • 1
mega byte = 1048576 bytes
 • 1
kilo byte = 1024 bytes
 • A
combination of 16 bits are called word.
 • A
terabyte = 1 trillion bytes
 • Our
PC belongs to 4th generation
 • Fred
Cohen coined the word computer virus
 •
First computer virus was created in 1970 at Bell laboratories
 • WORM
means Write Once Read Many
 •
Power of a super computer is measured in FLOPS (Floating Point Operations per
Second)
 •
WWW/http: (hypertext transfer protocol) was created by Tim Burner Lee in 1992
 •
Intel means Integrated Electronics
 • 1
worksheet contains 256 columns
 •
G.W.Basic G.W stands for Gate Way
 •
Super Computer was created by J.H.Van Tassel
 •
CORBA is Common Object Request Broker Architecture
 • URL
is Uniform or Universal Resource Locator
 •
Intel invented RAM chip
 •
Information stored on disk as series of bumps on its shiny side.
 • DVDs
hold more information than CDs. They use smaller bumps and have two reflective
layers
 •
Recordable CDs do not have bumps. There are patches of color on disk to change
the reflected laser light
 • In 1951 Univac – 1, the world’s first commercial
computer was designed by John Mauchly and J. Presper Eckert. They built ENIAC, the first electronic
computer in 1946
 • In
1968 mainframe was built.
 • In
1976 first supercomputer the Cray-1 was developed
 • In
1981 IBM produce the IBM PC.
 • In
1998 IBM made quantum computer
 •
Super computers uses parallel processing
 • In
1974, computer games were introduced.
 • PROM
is the abbreviation of programmable read only memory 
 • What
was the world’s first high level programming language 1957: IBM FORTRAN
 • A
JPEG is a picture file format - what does JPEG stand for: Joint Photographic
Experts Group
 • During World War II, IBM built the computers the
Nazis used to manage their death/concentration camps
 •
Registers are temporary storage areas within the CPU.
 •
First apple computer was built in garage.
 • The
language of small talk is object oriented.
 •
Shell is an operating environment.
 •
Virtual memory is also known as virtual page.
 • NOS
refer to operating systems for a network.
 • In
EBCDIC each character is denoted by 8 bits.
 •
Diodes are used in analog computer circuits as limiter.
 •
Wetware stands for any organic intelligence.
 • GIGO
stands for garbage in garbage out.
 •
Application of flip-flap are counters, shift register and transfer register.
 •
Bootstrap is associated with computer.
 •
FORTRAN stands for formula translator.
 • A
group of character that is termed as a single entity is called word.
 • Clip
art is a computer prepared art.
 • Mark
sensing is another term for OMR.
 •
Authorization to make multiple software copies is called site licensing.
 •
Antivirus is also known as vaccines.
 • Free
software is also known as public domain software.
 • In
computer DFD stands for Data Flow Diagram.
 •
Cyber Space is called to Virtual world of the computer.
 • What
does the sun in SUN Microsystems stand for Stanford University Network
 • What
does Intel stand for- Integrated Electronics
 • All
PCs have a BIOS what does bios stand for-Basic Input Output System
 • What
is the common name for an integrated circuit A Chip
 • In
WWW terms what does i.e. mean on a domain name-Ireland
 • What
company introduced the first commercial minicomputer 65 DEC
 • Name
the first web browser publicly available NCSA Mosaic
 • The
world’s most powerful super computer is called ASCI white.
 •
World Wide Web was invented in 1993 by Tim Bareness Lee.
 • The
B-programming language was developed by Ken Thompson.
 • The
1st commercially produced and sold computer (1951) was UNIVAC. 
 • The
transformation from heavy computers to PCs was made possible using
microprocessors. 
 • The
first microprocessor was developed in 1971 by Intel.
 • A
pentium 4 (P-4) employs roughly 40 million transistors. 
 •
Mark-1, Apple-1, and collossus were initial desktop computers. 
 •
Binary digits are briefed as bit. 
 • A
collection of bits is called byte.
 • The
first home computer (1977), which was sold in millions of units was Apple II. 
 •
‘PARAM’ is a supercomputer.
 •
Father of the Computer.. Charles Babbage 
 •
First artificial satellite was Sputnik-I sent by Soviet Union on October 4,
1957
 • What
country launched its first space rocket January 1961-Italy
 •
First human in space is Yuri Gagrin 1961 on USSR • First space scientist was
Henry Quendish 
 •
First woman in space was Valentine Khurachoof in 14 June, 1963
 •
Apollo XI enabled man to step on moon
 ▪ Generators convert mechanical energy into
electricity. Nuclear energy is a cheap
source of abundant electricity.
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