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Reference Manual Review for Final Exam

Hardware The physical components of a computer
Software Set of instructions that cause the computer to perform a specific task
Keyboard Most common input device – used to enter letters, numbers and special characters
Monitor Output display screen – size of monitor and resolution is important
Mouse Input device that allows selection without typing
Floppy Disk Drive Device that holds a reusable floppy disk that can store or retrieve information
CD ROM/DVD Drive & Burner Allows you to read data from a compact disk or DVD as well as save onto the CD or DVD
Scanner Input device that allows you to copy an image into digital data
Memory Stick A portable memory device that plugs into a USB (Universal Serial Bus) port – allows for backup and transporting of files/documents
DVD Digital Versatile Disk -- stores audio, movies or large amounts of data
AUP/AUG Acceptable Use Policy/Guide or Procedure - an agreement that you will use the Internet for “acceptable” and educational reasons
Bit Binary Digit – the basic unit of information that the computer can understand. Either there is a current or there is not – represented by a 1 or a 0
Byte Eight continuous bits that join together to represent a letter, number or special character
Kilobyte Basic unit of measurement for computer memory – equal to approximately 1000 bytes (1024 or 210)
Megabyte Equal to approximately one million bytes
Gigabyte Equal to approximately one billion bytes
Terabyte Equal to approximately one trillion bytes
Ghz – Gigahertz A unit of measurement equal to one billion electrical vibrations or cycles per second – used to compare the speeds of computers
Operating System Program that provides control over computer, disk drive, printer, etc.
Peripheral Any hardware added onto your CPU
Microprocessor Miniature transistor on an integrated circuit--one or more serve as a Central Processing Unit in a computerized system
Node An individual computer that is attached to a network
Standalone A computer that is not part of the network
Network A network allows computers to communicate with each other and enables them to share files, documents, hardware devices
Router (Hub) Specialized computers that send messages along thousands of pathways. They direct the flow of data packets (info gets broken up into smaller units) to the right location .
Modem Modulator/demodulator – A communication device that turns digital tones (computer) into analog (sound waves) and vice versa to allow the sending of information over telephone or cable lines.
Intranet Network designed for within an organization
Extranet An extension of an intranet within an organization that includes the World Wide Web
Infrastructure The basic underlying framework of a system – how all computers are joined together.
Anti-virus Software Programs that are used to detect, disinfect or repair viruses on a computer
Infection When a virus has been detected in your computer system – either dormant or active.
Encryption Method of encoding material before it is sent by telecommunications – provides secure data
Internet Consists of thousands of connected networks around the world
Internet Service Provider A company that offers a connection to the Internet for a fee.
Internet Protocol The set of rules/procedures that allow information to pass between networks.
Website A group of HTML documents made up of text, images, video and hyperlinks.
Email A method of composing, sending, and receiving messages over electronic communication systems
URL Uniform Resource Locator – an address on the Internet
Search Engine A method of searching for specific items on the Internet
Cookies A small amount of structured data that is shared between a web server and the web browser – cookies are saved after exiting from the site.
Download To copy a file (words, picture, sound) from one location to another through computers.
Validity A term that means “based on facts”. The validity or truthfulness of the information gathered from the Internet should be evaluated.
Copyright The exclusive rights of authors and artists to copy, publish and sell their material.
Hyperlinks A way of jumping from one site to another – usually refers to the Internet – will lead to another website or a location on the page.
Ergonomics The study of how the physical health of workers is affected by their workplace
Carpal Tunnel Syndrome A stress injury that occurs when the same task is repeated and strains a nerve in the wrist.
Repetitive Stress Injuries Stress on nerves, muscles or any part of the body when the same task is done over and over.
Spreadsheet An electronic worksheet that is used to store and manipulate data.
Cell An address that reflects the intersection of a column and a row.
Equation/Expression The user types in the equation using the appropriate cell references
Function/Formula Built in mathematical function; part of the program
Database A collection of related information about a subject organized in a useful manner that can be manipulated
File A collection of related records that is saved under one name
Record A collection of related fields
Field A space for a specified piece of information within a record
Desktop Publishing The design and production of publications using software with graphics capabilities.
Created by: Mrs. Emms



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