Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Microprocessor | CPU- Central unit of the computer that contains the logic circuitry and carries out the instructions of the computer's programs
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| Motherboard | Main circuit board of the computer
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| Peripheral devices | Devices inserted into a computer that give it added capabilities
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| Monitor | Device used to display computer-generated information
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| Hard disk: Hard drive: C drive | Magnetic disk inside the computer that can hold several hundred gigabytes of information and is used to store the application software that runs on the computer
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| CD Burner or CD-R Drive | Device used to take information from one CD-ROM and write it to another CD-ROM
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| Modem, Modulator-Demodulator | Device over which data can be transmitted via telephone lines or other media, such as coaxial cable
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| System Software | Software installed on a computer to allow a hardware device to function
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| Bytes | Measurement of storage capacity
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| Hertz | Measurement or processing speed
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| Input devices | Accept data into the computer: Mouse, scanner, keyboard, or voice recognition
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| Output devices | Data that exits the computer: Monitors, speakers, printers, scanners, and modems
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| Keyboard | Used to perform specific word processing or other computer related operations.
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| Storage | The act of retaining data or applications
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| Types of computers | Desktop Laptop Tablet Notebook Embedded Mainframe PDA/Smartphone
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| File formats | File extentions {.txt} indicates what type of data is stored and what program to use to open it
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| .jpeg | For photographs
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| .gif | For scanned images and illistrations
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| .doc | For documents
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| .txt | For txt
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| .rtf | For special commands
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| .bmp | For certain graphics
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| System Software | Serves as the operating system for the computer: Window XP, Vista, Windows 7, Linux, Apple's Snow Leopard, Lion iOS5, iCloud, Androids Gingerbread, Jellybean
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| Application Software | Programs that are loaded onto the computer and carry out work done by users of the computer: Microsoft Word (Office, Excel, Access, Powerpoint)
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| Four steps in computer processing | -get or fetch program instructions from memory
-execute program instruction
-read information from input devices
-send information to output devices
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| LAN: Local Area Network | Contained in a single building or group of buildings and are connected by a router, can be connected to other LANs at a distance
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| Server | Computer or device on a network that manages shared network resources
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| Print Servers | Manage computers connected to one printer
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| File Servers | Used for file storage
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| Database Servers | Used to process database queries
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| Network | Group of two or more computer systems that are linked together
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| Hub | A common connection point for devices on a network with multiple devices, which is often used to connect segments of a local area network (LAN)
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| Switch | Control local network traffic
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| WAN: Wide Area Network | Connected through public networks, such as telephone system, or through leased lines or satellites: Largest is the Internet
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| CAN: Campus Area Network | Used on college campuses and sometimes military bases
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| HAN: Home Area Network | Connect network inside users home
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| How do you protect data from intruders | Firewalls, Anti-virus, Logons, Ecryption garbles, Electronic signatures
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| Browser | Software programs that allow users to view Web pages on the internet
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| URL | The acronym for uniform resource locator; specifies the global address of documents or information on the Internet: Provides the IP address and the domain name for the Web page, such as microsoft.com
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| Domain name | The domain and name of the host or server indicating the publisher of a Web page or site
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| Search Engine | Programs that search documents for keywords and return a list of documents containing those words
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| Word | Any combination of characters between two blank spaces: Letters, Numbers, Symbols
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| Paragraph | Any combination of characters or words between two ENTER marks: can be just the ENTER character or as little as one word
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| Clipboard | Cut copy and paste text: editing icons
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| Selection Bar | Provides easy way to quickly select on or more lines of a document
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| Font | Displays a list of typefaces
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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