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30 Cards in this Set
- Front
- Back
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CPU |
Central processing unit. The “brains” of the computer. The CPU is housed on atiny silicon chip that contains millions of switches and pathways that help your computer interpret and execute instructions. This is where the mathematical calculations and logical comparisons are done. |
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RAM |
Random Access Memory. It is the main memory and stores data and programswhile the computer is running. When the computer is turned off anything in main memory disappears. Computer can read from and write to this memory |
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ROM |
Read Only Memory. A computer chip that stores specific instructions to managethe computer’s operation. Unlike main memory, this type of memory is non-volatile—the instructions remain permanently on the chip and cannot be changed. |
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Bit |
a fundamental unit of information having just two possible values, either 0 or 1 |
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Byte |
a sequence of adjacent bits, usually eight, operated on as a unit by a computer(used to measure size) |
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Kilobyte |
A unit of computer memory or data storage capacity equal to 1,024bytes |
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Megabyte |
a unit of computer memory or data storage capacity equal to 1,024 KB |
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Gigabyte |
a unit of computer memory or data storage capacity equal to 1,024megabytes |
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Terabyte |
a unit of computer memory or data storage capacity equal to 1,024gigabytes |
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Storage devices |
a hardware device, such as a hard drive (Usually the C-Drive),CD (700 MB), DVD (4.7 GB ), or USB drive (some can hold more than 2 GB) used to record and store data. |
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Input devices |
Any device used to input data into the computer (keyboard, mouse,scanner, etc) |
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Output Devices |
device used when reading/looking/listening (printer, screen,speakers, etc) |
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Resolution |
amount of pixels on the screen. More pixels the better resolution andclarity. |
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Pixels |
the basic unit of the composition of an image on a television screen, computermonitor, or similar display |
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GUI |
a computer interface that enables a user to controlthe computer and launch commands by pointing and clicking at graphical objects such as windows, icons, and menu items. |
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Platform |
compatible computers from one or more manufacturers; the two popularplatforms for personal computers are PCs and Macintoshes |
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Icons |
an image that represents an executable file |
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Virus |
programming code created as a prank or as a malicious action that secretlyaffects other programs and causes unwanted consequences. |
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Trojan |
a program that looks like it is doing something good, but in reality it is doingsomething destructive. The user is usually tricked into installing it, thinking it will be useful. |
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Server |
A computer and its associated storage devices that are accessed remotelyover a network by users. |
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Boot Process |
Bootstrapping is the process of starting up a computer from a halted orpowered-down condition |
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Input |
information that is created or collected and fed into the system |
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Base 2 binary code: |
A numbering system with only two digits numbers are 0 and 1. Allnumbers are comprised of only these two digits. |
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Data |
facts used by a computer |
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Output |
Useful information that leaves the system; i.e. processed information |
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Program |
a series of commands and executable files that produce an expected result |
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Productivity Programs |
Word Processer used to write letters and reports;Spreadsheet used to create charts, graphs, and formulas; database used for large amounts of information also forms; Presentation software for slideshows, and desktop publishing for creating business cards, postcards, and other business documents. |
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Operating System software |
a type of software that provides an interface betweenthe user or application software and the computer hardware. |
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Multitasking |
the ability of an operating system to run more than one softwareprogram at a time |
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Attachments |
a file that is attached to another file |
