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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 |