BASICS OF COMPUTERS

• 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

* RAM is Random Access Memory

* ROM is Read-Only Memory

* CPU is Central Processing Unit

• 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

• What does CMOS stand for in a computer- Complimentary metal Oxide semi-conductor