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C2Vocabulary0512
Question | Answer |
---|---|
Bit | Smallest unit of binary information. 8 equal a byte. |
Byte | Represents 1 alphabetic or numeric character of information. |
Control Unit | Retrieves the instructions and sends command signals to the rest of the computer system to tell them what to do. |
Arithmetic Logic Unit | Performs the mathematical calculations that are required in many data processing programs. |
Memory Unit | Allows storage of information. 2 Parts Random Access & Ready Only. |
Random Access Memory | Temporary memory that is designed to hold new data and is available while the compute is turned on. |
Read Only Memory | Permanent internal memory inside the system, inaccessible to the user, and is used to store instructions that are installed or programmed at the manufacturer. |
Megahertz | One million cycles per second. |
Gigahertz | One Billion cycles per second. |
Cache | Provides a temporary storage area that provides quick access to information. |
Input Devices | Allow input of data into the computer. Examples are keyboards, mice, scanners, graphic tablets, microphones, digital cameras, web cameras, whiteboads, PDAs, clickers, and cell phones. |
Optical Character Recognition | A converting text type of software. |
Output Devices | Produce the data after it has been processed in hard copy or soft copy. Examples are Text Documents, Graphics, or Multimedia. |
Cathode Ray Tube | Technology which screen is measured including the casing. |
Liquid Crystal Tube | Technology which screen is measured inside the casing. |