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Computer finals
Review
| Question | Answer |
|---|---|
| Microprocessor | CPU- Central unit of the computer that contains the logic circuitry and carries out the instructions of the computer's programs |
| Motherboard | Main circuit board of the computer |
| Peripheral devices | Devices inserted into a computer that give it added capabilities |
| Monitor | Device used to display computer-generated information |
| 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 |
| CD Burner or CD-R Drive | Device used to take information from one CD-ROM and write it to another CD-ROM |
| Modem, Modulator-Demodulator | Device over which data can be transmitted via telephone lines or other media, such as coaxial cable |
| System Software | Software installed on a computer to allow a hardware device to function |
| Bytes | Measurement of storage capacity |
| Hertz | Measurement or processing speed |
| Input devices | Accept data into the computer: Mouse, scanner, keyboard, or voice recognition |
| Output devices | Data that exits the computer: Monitors, speakers, printers, scanners, and modems |
| Keyboard | Used to perform specific word processing or other computer related operations. |
| Storage | The act of retaining data or applications |
| Types of computers | Desktop Laptop Tablet Notebook Embedded Mainframe PDA/Smartphone |
| File formats | File extentions {.txt} indicates what type of data is stored and what program to use to open it |
| .jpeg | For photographs |
| .gif | For scanned images and illistrations |
| .doc | For documents |
| .txt | For txt |
| .rtf | For special commands |
| .bmp | For certain graphics |
| 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 |
| 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) |
| 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 |
| 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 |
| Server | Computer or device on a network that manages shared network resources |
| Print Servers | Manage computers connected to one printer |
| File Servers | Used for file storage |
| Database Servers | Used to process database queries |
| Network | Group of two or more computer systems that are linked together |
| 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) |
| Switch | Control local network traffic |
| WAN: Wide Area Network | Connected through public networks, such as telephone system, or through leased lines or satellites: Largest is the Internet |
| CAN: Campus Area Network | Used on college campuses and sometimes military bases |
| HAN: Home Area Network | Connect network inside users home |
| How do you protect data from intruders | Firewalls, Anti-virus, Logons, Ecryption garbles, Electronic signatures |
| Browser | Software programs that allow users to view Web pages on the internet |
| 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 |
| Domain name | The domain and name of the host or server indicating the publisher of a Web page or site |
| Search Engine | Programs that search documents for keywords and return a list of documents containing those words |
| Word | Any combination of characters between two blank spaces: Letters, Numbers, Symbols |
| Paragraph | Any combination of characters or words between two ENTER marks: can be just the ENTER character or as little as one word |
| Clipboard | Cut copy and paste text: editing icons |
| Selection Bar | Provides easy way to quickly select on or more lines of a document |
| Font | Displays a list of typefaces |
Created by:
bossy777
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