BHS BCA - Chapter 2 Vocab - Computer Hardware
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| American Standard Code for Information Interchange | ASCII; Coding system that computers of all types and brands can translate
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| Bit | In binary, a bit represents a zero or a one
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| Byte | A byte is another word for character; generally represented by 8 bits
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| CD-ROM | Disk that can store up to 680 MB of data; data can only be read from it
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| Central Processing Unit | CPU; Also known as the microprocessor; the brains of the computer
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| Controller | Device that controls the transfer of data from the computer to a peripheral device and vice verse
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| DVD | Digital Versatile Disk; Video output, including full-length movies, can be stored on this medium
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| Execution Cycle | E-cycle; The amount of time it takes the CPU to execute an instruction and store the results in RAM
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| Hard Disk Drive | A data storage unit inside a computer that can store a large quantity of data (60GB+), but cannot easily be removed form the computer
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| Impact Printer | Type of printer that uses a mechanism that actually strikes the paper to form characters
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| Input Device | Enable the user to input data and commands into the computer
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| Instruction Cycle | I-cycle; The amount of time it takes the CPU to receive an instruction and complete the command
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| Keyboard | Common input device for entering numeric and alphabetic data into a computer
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| Main Memory | RAM; Is like short-term memory. it stores data while the computer is running. When the computer is turned off or if there is a loss of power, any data in the main memory disappears. The computer can read from and write to this type of memory
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| Memory | Where data is stored on the computer's motherboard
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| Motherboard | A circuit board that contains all of the computer system's main components
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| Mouse | A pointing device that serves as a faster, more effective alternative to the keyboard in communicating instructions to the computer
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| Network Drive | A disk drive located on another computer or server that provides space you can use for data
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| Nonimpact Printers | Type of printer in which characters are formed without anything striking the paper
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| Optical Storage Devices | Devices that enable the computer to give the user the results of processed data
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| Output Devices | Enable the computer to give you the results of the processed data
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| Plotter | An output device used to produce charts, engineering plans, and other large-size printed material with lines drawn by pens that move on rails
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| Pointer | On-screen object (whose shape changes depending on the function) that can be moved and controlled by the mouse
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| Random Access Memory | RAM; Where instructions and data are stored on a temporary basis. This memory is volatile
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| Read-Only Memory | ROM; Permanent storage; instructions are burned onto chips by the manufactuer
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| Scanner | An input device that can change images inot codes for input on the computer
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| System Clock | An electronic pulse that is used to sync processing; it controls the speed of the CPU
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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