interprets and carries out the basic instructions that operate a computer

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  • interprets and carries out the basic instructions that operate a computer

    *System Unit


    ·         is a case that contains electronic components of the computer used to process data.




    ·         is the main circuit board of the system unit




    ·         a computer ____ is a small piece of semi-conducting material, usually silicon, on which integrated circuits are etched.




    ·         interprets and carries out the basic instructions that operate a computer


    *Control Unit


    ·         The _________________________ is the component of the processor that directs and coordinates most of the operations in the computer


    Arithmetic Logic Unit


    ·         is the component of the processor that performs arithmetic, comparison, and other operations


    Machine Cycle


    ·         Together, four operations (fetching, decoding, executing, and storing) comprise a(n


    System Clock


    ·         The processor relies on a small quartz crystal circuit called the _________________________ to control the timing of all computer operations.


    *Clock Speed


    ·         The pace of the system clock, called the _______, is measured by the number of ticks per second




    ·         When 8 bits are grouped together as a unit, they form a(n




    ·         _____ consists of electronic components that store instructions waiting to be executed by the processor, data needed by those instructions, and the results of processed data (information).




    ·         memory does not lose its contents when power is removed from the computer.




    ·         Most of today's computers improve processing time with _________________________, which stores frequently used instructions and data.




    ·         refers to memory chips storing permanent data and instructions


    Access Time


    ·         _________________________ is the amount of time it takes the processor to read data, instructions, and information from memory.


    expansion slot


    ·         A(n) _________________________ is a socket on the motherboard that can hold an adapter card.


    USB Flash Drive


    ·         an __________ is a flash memory device that plugs in a USB port on a computer or portable device.




    ·         An___is the point at which a peripheral attaches to or communicates with the system unit so it can send data or receive information from the computer.




    ·         A ___ joins a cable to a peripheral.


    Serial Port


    ·         A(n) _____ is a type of interface that connects a device to the system unit by transmitting data one bit at a time.


    Parallel Port


    ·         Unlike a serial port, a(n) _____ is an interface that connects devices by transferring more than one bit at a time


    USB Port


    ·         A(n) _________________________ is an interface that can connect up to 127 different peripherals together with a single connector.



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