Computer Glossary Pdf
File viruses attached to program files files with the extension. The Internet is not controlled by any single group or organization. An electrical power supply that includes a battery to provide enough power to a computer during an outage to back-up data and properly shut down.
Glossary of Computer and Internet Terms
These range from newsgroups exchanging information on scientific advances to celebrity fan clubs. This type of printer is most often used in industrial settings, such as direct mail for labelling.
They have to be sent to another computer by e-mail, sharing, or applications. Computer programs whose original source code was revealed to the general public so that it could be developed openly. The computer interprets the code to form numbers, letters, punctuation marks, futurist cookbook pdf and symbols.
Each instruction a computer receives takes a fixed number of clock cycles to carry out, therefore the more cycles a computer can execute per second, the faster its programs run. It can destroy information stored on the computer, and in extreme cases, can destroy operability.
Symbols or illustrations appearing on the computer screen that indicate program files or other computer functions. Its original focus was research and communications, but it continues to expand, offering a wide array of resources for business and home users.
An input device, like a mouse. Software created by people who are willing to give it away for the satisfaction of sharing or knowing they helped to simplify other people's lives.
Boot viruses place some of their code in the start-up disk sector to automatically execute when booting. The term hacker is sometimes incorrectly used interchangeably with cracker. Current technology requires the user to wear a special helmet, viewing goggles, gloves, and other equipment that transmits and receives information from the computer. To transfer information from a computer to a web site or other remote location on a network. Cold boot means restarting computer after the power is turned off.
Computers can be protected from viruses if the operator utilizes good virus prevention software and keeps the virus definitions up to date. Also called pop-up menu or pull-down menu.
Random Access Memory, one of two basic types of memory. It refers to reducing a window to an icon, or a label at the bottom of the screen, allowing another window to be viewed. Computer software that performs a task or set of tasks, such as word processing or drawing. Programming language instructions are converted into programs in language specific to a particular machine or operating system machine language. It also contains page layout information, which defines the location of each item on the page, as well as the size and shape of the pages in the document.
Power supplies, information storage devices, or changers are attached. Hard discs are made up of several rigid coated metal discs.
Begun in the late s, it was developed in the s to allow government and university researchers to share information. The physical and mechanical components of a computer system, such as the electronic circuitry, chips, monitor, disks, disk drives, keyboard, modem, and printer.
Free computer terms dictionary and glossary
Audio-visual software that allows movie-delivery via the Internet and e-mail. Taking packets of information sound or visual from the Internet and storing it in temporary files to allow it to play in continuous flow. For example, the email address for the First Lady is first. Internet tool that delivers specific information directly to a user's desktop, eliminating the need to surf for it. An input device similar to a mouse.
It was developed in by Tim Berners-Lee, a British computer scientist, and is now the primary platform of the Internet. Devices used to store massive amounts of information so that it can be readily retrieved. Compact audio and video file format. An international conglomeration of interconnected computer networks.
The program's main component the data resides on a centralized server, with smaller components user interface on each client. Format used in portable playback devices. Hypertext Transfer Protocol Secure, often used in intracompany internet sites. The interconnections that allow a device, a program, or a person to interact. American Standard Code for Information Interchange, an encoding system for converting keyboard characters and instructions into the binary number code that the computer understands.
Software used to navigate the Internet. Temporary storage for information, including applications and documents.
It can store embedded fonts so you do not need to have the appropriate fonts installed to the view the document correctly. Personal Digital Assistant, a hand-held computer that can store daily appointments, phone numbers, addresses, and other important information. In short they are called binary digits. It is used to draw on a tablet like drawing on paper and the tablet transfers the information to the computer.
It may be free-standing software, or it may add functionality to existing software. Each domain name ends with a suffix that indicates what top level domain it belongs to. It sets up a filing system to store files and tells the computer how to display information on a video display.
Hardware interfaces are the cables that connect the device to its power source and to other devices. Common applets include financial calculators and web drawing programs. Each word on the strip has a context sensitive drop-down menu containing features and actions that are available for the application in use. Printed Circuit board, a board printed or etched with a circuit and processors. Computer hardware or peripherals that come set up with necessary software so that when attached to a computer, they are recognized by the computer and are ready to use.
For example, the word cat has three characters, and it would be represented by three bytes. Examples include external hard drive, scanner, printer, speakers, keyboard, mouse, trackball, stylus and tablet, and joystick.
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