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COMPUTER BASIC INFORMATION I

COMPUTER BASIC INFORMATION I


  • The earlier computers, which were massive in size, were based on vacuum tubes.
  • Computer is a fast and accurate electronic symbol processing machine that can accept, store and process data and can produce useful information as output.
  • The computer system is divided into two parts, hardware and software.
    • I. Hardware is the electrical and electronic components of a computer that can be seen and touched.
    • 2. Software is the collection of programes written for computer to perform certain tasks.
  • A computer program refers to the range of programs that are used to perform various functions.
  • The three important parts of a computer are Input device, Central Processing Unit (CPU) and Output device.
  • Main chip of the computer is called CPU
  • The CPU is the brain of the computer.
  • Parts of CPU are ALU, CU, MU
  • Control Unit (CU) controls the processing of data inside computer.
  • Memory Unit stores data temporarily during the processing.
  • Arithmetic and Logic Unit (ALU) performs all the mathematical calculations.
  • WINDOWS is a Software.
  • Windows is an operating system that helps the user to work on the computer.
  • The My Computer folder on the Desktop shows the program icons present in your computer such as hard disk, floppy disk, CD-Rom, Pendrive and Printer.
  • The My Documents Folder is a desktop folder that stores all the documents, graphics and other files.
  • The Recycle Bin is a folder in which deleted files are stores.
  • MS DOS, Linux, Unix, MS Windows etc are the most popular Operating System.
  • My Computer, My Documents, Recycle Bin and Network Neighbourhood are the common icons found on the Windows Desktop.
  • The free programs that we get from start menu is called Accessories
  • Mouse is a device for moving the cursor on the screen of a computer.
  • The part of a computer that contains the screen where messages to and from the Central Processing Unit are displayed - Monitor.
  • Scanner is a device that converts images into digital form so that they can be stored and manipulated on computer.
  • Early computing machines, like the ENIAC, were actually meant to assist the armed forces.
  • The printers in pre-1950s were punch cards.
  • An improvement on the The  ENIAC, which pioneered 'stored program', was made possible with the help of the mathematician John von Neumann.
  • The B-programming language was developed by Ken Thompson.
  • Famous people, associated with the ENIAC, EDVAC, UNIVAC computers are Eckert & Mauchly.
  • IBM was provided software for PCs by Microsoft.
  • Time-sharing, teletyping, were associated with mainframe computers.
  • The transformation from heavy computers to PCs was made possible using microprocessors.
  • The first microprocessor was developed in 1971 by Intel.
  • The term 'micro' (extremely small) denotes 10-6m.
  • The Harvard student, who chose to write computer programs and dropped studies was Bill Gates.
  • The newly released microprocessor from Intel is Pentium-4.
  • The Pentium is the semiconductor chip used in today's computer.
  • 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 8 bits is called byte.
  • A megabyte has 106(million) bytes.
  • C++, is a computer language.
  • The process of eliminating programming faults is called debugging.
  • Starting up on operating system is called booting.
  • A program used to browse the web is called browser.
  • An error in software designing which can even cause a computer to crash is called bug.
  • Click and double-click are achieved using the mouse.
  • Java, C, ForTran, Pascal and BASIC are computer programming languages.
  • The device which sends computer data using a phone line is called MODEM.
  • 'Worm' and 'virus' are actually programs.
  • A 'file' is a unit of information.
  • A small, single-site network is called LAN.
  • A processor that collects several data and sends them over a single line is called bridge.
  • 'Nano' stands for one billionth part.
  • The number of bit patterns using an n-bit code is 2n.
  • To convert a binary number to a decimal, we have to express it in power of 2.
  • www stands for world wide web.
  • Mathematics employed in computers is called Boolean algebra.
  • The first home computer (1977), which was sold in millions of units was Apple II.
  • 'PARAM' is a supercomputer.
  • A website containing periodic posts is called blog.
  • While cutting and pasting, the cut item is temporarily stored in the clipboard.
  • http stands for hyper text transfer protocol.
  • The unwanted or non-requested emails are called "spam".
  • A computer framed to give various network services is called server.
  • The new processor introduced by Advanced Micro Devices (AMD) is Athalon.
  • Divine Logic is a software that prevents piracy.
  • Divine Logic has been developed by Shaju Chacko, a native of Kottayam.
  • The new supercomputer built by IBM can perform 12.3 trillion operations per second.
  • New version of microsoft office automation software - Office 2007
  • Internet explorer software.
  • DOS (Disc Operating System) was developed by Tim Patterson in microsoft.
  • Paul Brainard developed the publishing software pagemaker.
  • Philipcan invented cameraphone
  • Founder of Satyam Technologies - Ramalingaraju
  • Computer chess was discovered by - Citric G. Prince
  • Simputer was discovered by - Vinay Despandey
  • First E. Paper - The - Thejith (from Belgium)
  • ATM system was first launched in London in the year 1967
  • Powered by Intellect driven by values - Infosys
    motto
  • Intel 4004 - First microprocessor
  • December 2 - World Computer literacy day
  • E-sewa - E-governance programme launched in Andhra Pradesh
  • Archie - (Anomymous FTP) It is considered to be the first internet search engine allowing people to find specific files.
  • Operating systems used in personal computers. Windows -98, 95, Dos Apple Mac
  • Latest Search Engine - Altavista
  • Online free encyclopedia - Wiki Pedia
  • New version of microsoft operating system - Windows 7.
  • Main Googles are
    1. Google Earth
    2. Google Book Search
    3. Google Blog Search
    4. Google Talk
    5. Google Scholar
    6. Google Malayalam etc
  • Travel Search Engine in India -WWW.godo.com (900. com)
  • Electronic money - Cyber cash, Digital cash, E-cash
  • First Super Computer reached teraflopp speed - Asky Red
  • Google's browser plug-ins that runs web applications when online or offline - Google Gears.
  • Google's image editing software - Picasa
  •  India's Ist IT company with 100 crore Turn over Infosys
  • The basic architecture of computer was developed by John Von Neumann
  • In the history of computer the fifth generation was started in 1980.
  • Wordpad is a simple word processing program.
  • Laser Printer was first Introduced by IBM
  • The study of creating an efficient, comfortable, and healthy workplace while working on a computer is called Ergonomics
  • Device that are not part of the main computer system and are often added later to the system is known as Peripheral
  • A computer which links several PCs together in a network is called a Server
  • Ethernet is also known as 802.3
  • GUI stands for Graphical User Interface
  • Screensaver, virus checkers, PDF viewers, image viewers and system tool like disk defragmenter can be categorised into Utility software
  • The smallest component of an image that can be transmitted or received in a video display system is known as Pixel
  • The process of making an object appear to have a movement is called Animation
  • In an electronic spreadsheet, intersection of a column and a row is called Cell
  • A program that searches the Internet for Specified keywords and returns a list of the documents where the keywords were found Search Engine
  • A browser is A piece of software that acts as an interface between the user and the inner workings of the internet.
  • IP Address is the address given to a computer connected to a network.
  • A host on the Internet finds another host by its IP address


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