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| consists of 3 basic categories- hardware, software, and networks |
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| electronic and mechanical components that you can see and touch, such as your computer monitor |
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| set of instructions that direct the hardware |
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| technology increases the power of IT devices by allowing knowledge workers to share resources, including hardware, software, and info |
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| directs execution of instructions and the transformation of data |
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| temporarily stores data and instructions before processing |
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| provides the interface used for data entry into a device |
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| provides the interface used to retrieve information from a device |
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| stores data, information, and instructions for the long term |
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| connects one IT device to another |
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| an electronic switch that can be either on (1) or off (0) |
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| tiny chip made up of transistors, contains most components that make up CPU |
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| central processing unit CPU |
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| works together with memory to control the execution of all instructions and the processing of all data (brain) |
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| most important measure of CPU performance, (megahertz and gigahertz) |
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| contains instructions and data that only special devices alter |
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| Random Access Memory (RAM) |
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| stores data only until they are no longer needed, or until you shut down the computer |
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| science of designing a job or tool to fit the worker, keeping worker safer and more productive |
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| convert IT processed info into a form usable by knowledge workers |
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| Liquid Crystal Displays (LCD) |
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| slimmer, lighter and consume less power than CRT's |
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| a device that controls the transfer of data between a computer and a peripheral device, such as a printer |
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| network interface card (NIC) |
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| communications hardware that provides the physical connection between a computer and a local network |
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| allow you to connect to a remote network over a telecommunications line, such as telephone |
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| instinctual or built-in instructions |
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| any software required to control the hardware components and to support the execution of application software |
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| operating system (OS) software |
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| coordinates and handles the details of working with the computer hardware |
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| provides additional tools that you can use to maintain and service your system |
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| application helps guard your computer against unauthorized access when connected to a network |
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| OS software two main tasks |
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Definition
| Managing the hardware and software resources of the computer. 2 provide a stable and consistent interface between application programs and hardware |
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| complete self-contained program or set of programs performing a specific job |
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| confined to relatively small geographic area |
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| connect computer that cover entire regions, countries, and even overseas |
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| standard set of rules that allows the communication of data between nodes on a network |
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| Internet Service Provider (ISP) |
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| AOL, earthlink, netzero,purchase the expensive equipment needed to connect to the internet |
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