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BTT Unit One
Review for Unit One Test
| Question | Answer |
|---|---|
| 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 |
| RUP | 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 |