Monday, 25 July 2016

Quick Notes of computers for Bank Exams

  • A person who uses his or her expertise to gain access to other people’s computers to get information illegally or do damage is a – Hacker.
  • The Internet is the world's largest computer network, a distinction it has earned by virtue of being a "network of networks."
  • The protocol used by the Internet for getting messages from one machine to another is called the Internet Protocol (IP).
  • A Computer Virus is a computer program or code that can replicate itself and spread from one computer system to another system. A computer virus has the capacity to corrupt or to delete data on your computer and it can utilize an e-mail program to spread the virus to other computer systems. In the worst case scenario, it can even delete everything on your hard disk. The purpose of it to disrupt the operation of the computer or the program.
  • Reusable optical storage will typically have the acronym – RW.
  • An online discussion group that allows direct live communication is known as – Chat Group.
  • Codes consisting of lines of varying widths or lengths that are computer readable are known as – a bar code.
  • A web site’s main page is called as – home page.
  • To access properties of an object, the mouse technique to use is – right clicking.
  • Computers use the ____________ number system to store data and perform calculations – Binary.
  • Phishing is the attempt to acquire sensitive information such as usernames, passwords, and credit card details (and sometimes, indirectly, money) by masquerading as a trustworthy entity in an electronic communication.
  • Sharing copyrighted files without permission breaks copyright laws.
  • The following can be used to select the entire document – Ctrl +A.
  • The system unit – is the container that houses electronic components.
  • The simultaneous processing of two or more programs by multiple processors is – Multiprocessing.
  • A disk’s content that is recorded at the time of manufacture and that cannot be changed or erased by the user is – Read Only.
  • The permanent memory built into the computer is called – ROM.
  • Grouping and processing all of a firm’s transactions at one time is called – Batch Processing.
  • Help menu is available at which button – Start.
  • A central computer that holds collections of data and programs for many PCs, workstations and other computers is a Server.
  • When you save to this, your data will remain intact even when the computer is turned off – Secondary Storage Device.
  • The Drafts folder retains copies of messages that you have started but are not yet ready to send.
  • The Tab Row enables you to simultaneously keep multiple web pages open in one browser window.
  • The basic unit of a worksheet into which you enter data in excel is called a – Cell.
  • Formatting is the process of dividing the disk into tracks and sectors.
  • The process of transferring the files from a computer on the internet to your computer is called – Downloading
  • To reload a web page, press the button – Refresh.
  • Mobile Commerce is best described as – buying and selling goods/services through wireless handheld devices.
  • The main circuit board of the system unit is the Motherboard.
  • Installation is the process of copying software programs from secondary storage media to the hard disk.
  • The computer abbreviation – KB usually means – kilo byte.
  • Connection or link to other documents of web pages that contain related information is called – Hyperlink.
  • An Animation is a special visual and audio effect applied in Power Point to text or content.
  • The piece of hardware that converts the computer’s digital signal to an analog signal that can travel over telephone lines is called - Modem.
  • A website containing periodic posts is called Blog.
  • http stands for hyper text transfer protocol.
  • The earlier computers, which were massive in size, were based on Vacuum Tubes.
  • 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.
  • An error in software designing which can even cause a computer to crash is called Bug.
  • Java, C, ForTran, Pascal and BASIC are Computer Programming Languages 



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