comp. unit 1
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computer
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an electronic device, operating under the control of instructions stored in its own memory, that can accept data (input) process data according to specific rules (process) produce results (ouput) and store the results (storage)
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information cycle
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input process output storage
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data
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a collection of unprocessed items, which can be text numbers images audio and video
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information
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conveys meaning and is useful to people
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peripheral
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is a device that connects to the system unit and is controlled by the processor in the computer
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desktop computer
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is designed so that the system unit, input devices, output devices, and any other can fit entirely on or under a desk or table
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notebook computer
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also called laptop. is a portable personal computer often designed to fit on your lap
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smart phone
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is a phone that can connect to the internet and usually also provides personal information management functions such as a calender address book and computer
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digital camera
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device that allows users to take pictures and store the photos digitally
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input device
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any hardware component that allows you to enter data and instructions into a computer
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keyboard
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is an input device that contains keys users press to enter data and instructions into a computer
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stylus
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a stylus is a small metal or plastic device that looks like a tiny ink pen but uses pressure instead of ink
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mouse
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is a pointing device that fits comfortably under the palm of your hand
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touchpad
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small flat rectangular pointing device near the keyboard that allows you to move the pointer by sliding fingertip
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system unit
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is a case that contains electronic components of the computer used to process data
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motherboard
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system board, is the main circuit board of the system unit
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processor
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also call Central processing unit (CPU) interprets and carries out the basic instructions to operate a computer
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control unit
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directs and coordinates most of the operations in the computer
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arithmetic logic unit (ALU)
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performs arithmetic, comparison, and other
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memory
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consists of electronic components that stores instructions waiting to be executed and data needed by those instructions
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RAM
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main memory, (random access memory)
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byte
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stores one character such as a letter
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kilobyte
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(KB)bstores 1024 bytes
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megatyte
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(MB) equals one million bytes
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terabyte
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(TB) equals one trillion bytes
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output device
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are hardware components that convey information to one or more people
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printer
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an output device that produces text and graphics on paper
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photo printer
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ink jet printers that produce photo lab quality pictures
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laser printer
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is a high speed high quality printer that operates in a manner similar to a copy machine
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monitor
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display device
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display device
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an output device that visually conveys text graphics and video
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LCD moniter
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uses liquid crystal display to produce images on the screen
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pixels
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the surface area of the screen of an LCD monitor is composed of individual picture elements called _____
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resoution
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is the number of horizontal and vertical pixels in a display device
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storage device
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is the computer hardware that records and or retrieves items to and from storage media
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hard disk
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storage device that contains one or more inflexible circular platters that use magnetic particles to store data instructions and information
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track
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a narrow recording band that forms a full circle on the surface of the disk
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sector
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the disk's storage locations consist of a pie shaped sections which break the tracks into small arcs called _____
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read/write
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each platter has two ___/___ heads one for each side
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head crash
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when a read/write head touches a platter usually resulting in loss of data or sometimes the entire disk
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backup
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a duplicate of a file, program or disk placed on a separate storage medium that you can use in case original is lost or destroyed
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external hard disk
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a separate freestanding hard disk that connects with a cable to a port on the system unit or communicates wirelessly
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removable hard disk
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hard disk that you insert and remove from a drive
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solid state media
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flash memory chips, which means they consists entirely of electronic components and contain no moving parts
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flash memory
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a type of memory that can be erased electronically and rewritten
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solid state drive
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SSD, a storage device that typically uses flash memory to store data, intructions and information
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memory card
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is a removable flash memory device usually no bigger than 1.5 inches that you insert and remove from a slot in a computer or mobile device or card reader
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USB flash drive
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sometimes called a thumb drive is a flash memory storage device that plugs into a USB port
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optical disk
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a flat round portable metal disc with a plastic coating.
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CD DVD blu ray
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what are three types of optical disk
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CD-ROM
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compact disk read-only memory, is a type of optical disk that users can read but not write
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CD-R
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compact disk recordable, a multisession optical disk on which users write, but not erase, their own items
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Cloud storage
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is an internet service that provides hard disk storage to computer users
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communications device
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a hardware component that enables a computer to send and recieve data instructions and information to and from one or more computers
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modem
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widely used communications device
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wireless
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some transmission media, such as satellites and cellular radio, are ______ which means they have no physical lines or wires
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software
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also called a program, consists of a series of related instructions, organized for a common purpose, that tells the computer what tasks to perform and how to perform them
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GUI
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software today often have a graphical user interface. with ___ you interact with the software using text, graphics, and visual images such as icons
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installing
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the process of adding software to a computer
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uninstalling
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the process of removing programs and all files from a hard disk
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web application
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a web site that alllows users to access and interact with software from any computer or device connected to the internet
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system software
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consists of programs that control the operations of the computer and its devices.
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operating system and utility program
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what are two types of system software
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operating system
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set of programs that coordinates all the activities among computer hardware devices
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ultility program
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allows users to perform maintenance type tasks usually related to managing a computer
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application software
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consists of programs designed to make users more productive and or assist them with personal tasks
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application software
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personal information management, note taking, project management, accounting, etc
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word processing software
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is used to create edit format and print documents
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presentation software
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is application software that allows users to create and visual aids for presentations to communicate ideas, messages and other info (power point)
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Spread sheet software
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Excel, allows users to organize data in rows and columns and perform calculations on the data
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database
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Access, a collection of data organized in a manner that allows access, retrieval and use of that data
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email
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short of electronic mail, is the transmission of messages and files via a computer netowrk
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network
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a collection of computers and devices connected together via communications devices and transmission media
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local are network
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LAN, a network that connects computers and devices in a limited geographical area such as a home school or office of closely positioned group of biuldings
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wireless LAN
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WLAN, a LAN that uses no physical wires
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wide area network
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WAN, is a network that covers a large geographic area (such as a city or country) using a communications channel that combines many types of media such as telephone lines, cables and radio
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internet
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the worlds largest WAN
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internet
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a worldwide collection of networks that links millions of business, government, agencines, educational institutions and individuals
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world wide web
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also called the web, contains billions of documents called web pages
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web page
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contains text and graphics and animation and audio and video and has built in connections or links to other documents
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web site
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is a collection of related web pages
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URL
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also called web address, uniform resource locator, a web pages unique adress
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http://
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stands for Hypertext Transfer Protocol
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protocol domain name path web page name
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LABEL http:// www.nps.gov /grsm/planyourvisit/ wildlifeviewing.htm
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e commerce
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electronic commerce is a business transaction that occurs over an electronic network such as the internet
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search engine
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is a program that finds web pages , web sites, images, vedios, news, maps and other info related to the topic
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subject directory
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classifies web pages in an organized sets of categories or groups (sports, shopping and related subcategories)
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virus
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potentially damaging computer program that affects or infects a computer negatively by altering the way the computer works without the users knowledge
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worm
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a program that copies itself repeatedly
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trojan horse
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is a program that hides within or looks like a legitimate progtam
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rootkit
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program that hides in a computer and allows someone from a remote location to take full control of the computer
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malware
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malicious software, programs that act without a users knowledge and deliberately alter the computers operations
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anitvirus program
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protects the computer against viruses by identifying and removing any computer viruses found in memory or storage or incoming files
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windows 7
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the newest version of microsoft windows which is the most popular and widely used operating system
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left button, right button
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for a right handed user, the ____ is the primary mouse button, and the _____ is the secondary mouse button
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right drag
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point to an item, hold down the right mouse button, move the item to the desired location on the screen
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tilt a wheel
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press the wheel toward the right or left
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scroll bar
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is a horizontal or vertical bar that appears when the contents of an area may not be visible completely on the screen.
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scroll arrows and scroll box
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a scroll bar contains ____ and ____ that enable you to view areas that currently cannot be seen
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shortcut key or keyboard short cut
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some _____ consist of a single key such as the F1 key
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user name
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a unique combination of letters or numbers that identifies a specific user to windows 7
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password
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a private combination of letters, numbers, and special characters associated with the user name allows access to a users account resources
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logging on
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to a computer opens your user account and makes the computer available for use.
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restart command
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closes open programs, shuts down windows 7, and then restarts windows 7 and displays the welcome screen.
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sleep command
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waits for windows 7 to save your work and then turns off the computer fans and hard disk
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shut down command
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shuts down and turns off the computer
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recycle bin
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the location files have been deleted
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file
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is a named unit of storage
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microsoft 2010
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is the newest version of microsoft office that offers features that provide users with better functionality and easier ways to worl with the various files they create
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know pages off 8, com 4, com 16, com 24
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know pages off 8, com 4, com 16, com 24
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suite
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a collection of individual programs available together as a unit
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common dialog boxes
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microsoft office uses ____ ____ ____ for performing actions such as opening and saving files
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Word
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a full featured word processing program that allows you to create many types of personal and busines documents including flyers, letter, memos etc..
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start button
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is used to access programs, files, folders, and settings on a computer
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folder
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is a named location on a storage medium that usually contains related documents
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start menu
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allows you to access programs, folders, and files on the computer and contains commands that allow you to start programs, store, and search for documents
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menu
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a list of related items, including folders, programs, and commands.
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command
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each ____ on a menu performs a specific action such as saving a file or obtaining help.
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maximize
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to enlarge the window so it fits the entire screen
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document window
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you view a portion of a screen through a _____ _____
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Print Layout View
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The default (preset) view is _____ _____ ____ which shows the document on a mock sheet of paper in the document window
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status bar
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located at the bottom of the document window above the windows 7 taskbar, presents information about the document, the progress of current tasks, and the status of certain commands and keys. it also provides controls for viewing the document
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Ribbon
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located near the top of the window below the title bar, is the control center in word and office programs.
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tab group command
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what three things is the ribbon consists
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tab
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contains a collection of groups
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groups
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contains a related functions
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home tab
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tab that contains the more frequently used commands
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tool tabs
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office programs display _____ also called contextual tabs, when you perform certain tasks or work with objects such as pictures of tables
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gallery
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a set of choices, often graphical, arranged in a grid or in a list
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enhanced screen tip
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more detailed than a typical screen tip, is an on screen note that provides the name of the command, available keyboard shortcut, a description of the command, and sometime instructions for help
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dialog box launcher
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when clicked, displays a dialog box or a task pane with additional options for the group
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mini toolbar
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appears automatically based on tasks you perform, contains commands that related to changing appearance of the text in a document
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quick access tool bar
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located initially (by default) above the ribbon at the left edge of the title bar. Provides convenient one click access to frequently used commands
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key tips
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you can press the alt key on the keyboard to display ____ ____ or keyboard code icons, for certain commands.
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file, home, insert, page layout, references, mailings, review, view
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when you start word, the ribbon displays 8 main tabs:
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active tab
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the tab currently displayed
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shortcut menu
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is a list of frequently used commands that are related to the right clicked object
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file
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a saved document is referred to as a _____
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file name
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is the name assigned to a file when it is saved
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path
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consists of a drive letter (preceded by a drive name when necessary) and colon, to identify the storage device, and one or more folder names.
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address bar
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provides quick navigation options
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previous locations button
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saves the locations you have visited and displays the locations when clicked
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refresh button
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on the right side of the address bar, refreshes the contents of the right pane of the folder window.
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search box
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to the right of the address bar contains the dimmed word, search
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command bar
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contains 5 buttons used to accomplish various tasks on the computer related to organizing and managing
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navigation pane
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on the left and contains the favorites area, libraries area, computer area, and network area
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libraries area
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shows links to files and folders that you have included in a library
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favorites area
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contains links and to your favorite locations. by default, contains only links to your desktop, downloads and recent places
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library
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helps you manage multiple files and folders stored in various locations on a computer
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navigating
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is the process of finding a location on a storage device
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minimized window
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is an open window hidden from view but that can be displayed quickly by clicking the windows program button
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screen resolution
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indicates the number of pixels that the computer uses to display the letters numbers, and graphics
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slide show
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a power point presentation is also called a ____ ____
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slide
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basic unit of a power point presentation
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layouts
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are used to position content on a slide
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title slide
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when you create a new presentation, the default ___ ___ layout appears
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landscape orientation
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the default slide layouts are set up in ___ ___, where the slide width is greater than the height
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placeholders
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boxes with the dotted or hatch-marked borders that are displayed when you create a new slide
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file, home, insert, design, transitions, animations, slide show, review, view
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power points 9 main tabs
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excel
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a powerful spreadsheet program that allows users to organize data, complete calculations, make decisions, graph data,
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column heading
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a column letter above the grid, also called ____ ____ identifies each column
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row heading
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a row number on the left side of the grid, also called the ___ ___, identifies each row
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15 columns and 25 rowa
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how many rows and columns are there in excel
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cell reference
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a cell is referred to by its unique address or ___ ___ which is the coordinates of the intersection of a column and row
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active cell
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one cell on the worksheet, designated the ___ ___, is the one into which you enter data
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gridlines
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the horizontal and vertical lines on the worksheet itself are called ____
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formula bar
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the ___ ___ appears below the ribbon as you type, excel displays the entry into it.
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Acess
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a database management system
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database
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describes a collection of data organized in a manner that allows access retrieval and use of that data
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access work area
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you work on objects such as tables forms and reports in the ___ ___ ___
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outlook
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a powerful communications and scheduling program that helps you communicate with others, keep contacts, and organize calenders
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publisher
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a powerful DTP program that assists you in designing and producing professional quality documents
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notebook
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all activity in One Note takes place in the
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pages
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notebook consists of notes that are placed on ___
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sections
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pages are group into ___
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folders
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sections are grouped into ____
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file management
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organizing files in folders
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windows help and support
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is available when using windows 7. is designed to assist you in using windows 7