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| A device that accepts input, processes data, stores data, and produces output, all according to a series of stores instructions. |
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Microcomputer taht fits on a desk and runs on power from a wall outlet. |
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| Laptop or notebook computer |
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| a portable, compact computer that can run on an electrical wall outlet or a battery |
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| handheld computers or PDAs |
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| a computer that fits into a pocket, runs on batteries, and is used while holding the unit in your hand |
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| large, expensive computers capable of simultaneously processing data for hundreds or thousands of users. |
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| a computer that was the fastest in the world at the time it was constructed. |
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| includes the electronic and mechanical devices that process the data; refers to the computer as well as peripheral devices |
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| the path from one component of a computer to another that data uses to travel |
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| the main electronic component of the coputer |
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| case that hold the power supply, storage devices, and the circuit boards (including the motherboard) |
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central processing unit (CPU) |
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Where the processing in a computer takes place, often called the brain of the computer |
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| a measurement used to describe the speed of the system clock |
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| melted sand; what the circuits are embedded into to keep them together |
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| name of the CPU, 5th generations of the intel processor |
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| a cicuit board that gives the computer the ability to accept audio input, play sound files, and produce audio output through speakers or headphones |
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| whatever is put into a computer system |
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| units that gather information and transform that information into a series of electronic signals for the computer |
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| an arrangement of letters, numbers, and special function keys that act as the primary input device to the computer |
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| an input that allows the user to manipulate objects on the screen by moving the device along the surface of a desk |
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| device displays, prints, or transmits the result of processing from the computers memory |
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| display device that forms an image by convertings electrical signals from the computer into points of colored light on the screen |
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| a method for representing letters or numbers using only digits, 0 and 1 |
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| approximately 1 trillion bytes |
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| area of the computer that temporarily holds data waiting to be processed, stored, or output |
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| random access memory (RAM) |
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Definition
| the ability of a storage device to go directly to a specific storage location without having to search sequentially from a beginning location |
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| drives can read data from disks, but cannot store new data on them |
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| area of the computer that holds data on a permanent basis when it is not immediately needed for processing |
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| used to keep data when the power tot he computer is turned off |
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| usually mounted inside the computers system unit and can store billions of characters of data |
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| round piece of flexible Mylar plastic covered with a thin layer of magnetic oxide based surface coating |
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Definition
| recording of data onto disks or tape by magnetizing particles of an oxide based surface coating |
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| means of recording data as light and dark spots on CD or DVD with the use of a low-power laser light |
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| method of storing large amounts of data on tape using helical scan technology to write data at hight densities across the tape at an angle |
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| storage device that uses laser technology to read data that is permanently stored on compact disks; cannot be used to write data to a disk |
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| set of detailed, step by step instructions that tell a computer how to solve a problem or carry out a task. |
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| a computer program that tells the computer how to perform particular tasks |
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| master controller for all activities that take place within a computer; primary purpose is to help the computer system monitor itself in order to function efficiently |
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| set of computer programs that help a person carry out a task |
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| a form of legal protection that grants certain exclusive rights to the author of a program or the owner of a copyright |
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| a set of priciples of right conduct; a theory or system of moral values; the rule or standards governing the conduct of a person or the members of a profession |
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| a legal contract that defines the way in which you may use a computer program |
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| running more than one program at a time |
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graphical user interface (GUI) |
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| a type of user interface that features on screen objects, such as menus and icons, manipulated by a mouse |
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Definition
| sequence of events that occurs between the time you turn on a computer and the time that it becomes ready to accept commands |
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| the results of the computer storing data, such as words, numbers, sounds, and graphics, as bits and bytes |
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| underlying hardware and software of the computer system |
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| refers to the symbols that represent facts, objects, or ideas. |
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| manipulating or modifying data in many ways |
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| instructions to the computer |
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| used to expand the computers input, output, and storage capabilities |
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| a named collection of data that exists on a storage medium |
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| the subdirectory or subdivision of a directory that can contain files or other directories |
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| two or more computers and other devices that are connected for the purpose of sharing data and programs |
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| a computer that has the purpose of supplying its users with data, usually through the use of a LAN (local area network) |
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| powerful desktop computer designed for specialized tasks and refers to a personal computer connected to a network |
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| device that sends and recieves data to and from computers over telephone lines |
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| refers to the software on a computer that allows the user to access the server |
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| a computer connected to a network that distributes resources to other computers |
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| a device that servers as an entrance to another network |
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| refers to any computer that provides services to network users |
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| device that connects several components of a network |
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| computer network that is located within a limited geographical area, such as a school or small business |
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| small circuit board that converts the digital signals from a computer into signal that can travel over a network |
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| a device that connects at least two networks |
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interconnected group of computers and perepherals that cover a large geographical area, such a multiple buildings |
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| used to protect a network and the users on that network; guidelines to how a network can and should be used |
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| a unique identifying number assigned to each computer connected to the internet |
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| when one person sends an electronic message to another person or to a group of people |
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| set of program instructions that attaches itself to a file, reproduces itself, and/or spreads to other files |
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| searches executable files for the sequences of characters that might cause harm and erases or disables those commands |
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| computer program that tracks a computers users internet usage and sends data back to the person who created it |
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| prevents other computers on the internet from accessing a computer |
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| infects the system files that your computer uses every time it is turned on |
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| virus that attaches to an application program |
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| an event that activates a task often associated with a computer virus |
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| this virus infects a miniature program that usually contains legitimate instructions to automate a documents or task |
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| computer program that seems to perform one function while actually doing something else |
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| watches for the PC clock to reach a certain date to activate the virus |
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| watches for the pc clock to reach a certain date to activate the virus |
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| software program designed to enter a computer system usually through a network, through security holes, them replicate itself |
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