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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