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| Software that detects and possibly eliminates viruses. |
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| Programs that perform a business function. Some application programs are general purpose like Excel and Word. Other application programs are specific to a business function, such as accounts payable. |
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| The means by which computers represent data; also called bits.Either a 0 or a 1 |
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| The means by which computers represent data; also called a binary digit. (1 or 0) |
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| A handheld computer that enables users to make cell phone calls, process emails, and access the internet. |
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| means by which the CPU reads instructions and data from main memory and writes to main memory. |
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| A character of data or 8-bit chunk |
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| A small amount of very fast computer memory that holds the most frequently used data. Typically the CPU stores intermediate results and the most frequently used computer instructions in the _. Can be thought of as local, dedicated memory for the CPU and “elbow room” for processing. |
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| Optical disk that can record data once. |
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| A re-writable optical disk |
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| Central processing unit (CPU) |
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| Selects instructions, processes them, performs arithmetic and logical comparisons, and stores the results of operations in memory. |
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| A computer that provides word-processing,spreadsheets,database access, and usually a network connection. |
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| Client- server applications |
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| Software applications that require code on both the client computer and the server computer. Email is a common example. |
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| A type of video display monitor that uses cathode ray tubes, the same devices used in traditional TV screens. Because they use a large tube, _ monitors are large and bulky, about as deep as wide. |
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| Custom- developed software |
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| Means by which the CPU reads instructions and data from main memory and writes data to main memory |
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| The distance between pixels on a CRT monitor. The smaller the _, the sharper and brighter the screen image will be. |
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| A computer with two CPUs. |
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| A Digital versatile disk that record data once. |
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| A digital versatile disk that is read-only. |
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| A re-writable digital versatile disk. |
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| A type of signal interface for LCD devices;it provides a better-quality image than the traditional VGA interface, but is more expensive. |
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| Computer software that is installed into devices such as printers, print services, and various types of communication devices. The software is coded just like other software, but is installed into special programmable memory of the printer or other device. |
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| Electronic components and related gadgetry that input, process, output, store, and communicate data according to instructions encoded in computer programs or software. |
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| Horizontal Market Application |
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| Software that provides capabilities across all organizations and industries; examples include word processors, graphics programs, spreadsheets, and presentation programs. |
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| Hardware devices that attach to a computer; includes keyboards,mouse,document scanners, and bar code scanners (Universal Product Code) |
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| The collection of instructions that a computer can use |
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| A handheld computer from Apple that combines a cell-phone, internet connection device and an Ipod. |
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| A type of video display monitor that uses a technology called liquid crystal display. _ are flat and require much less space than CRTs. |
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| Agreement that stipulates how a program can be used. Most specify the number of computers on which the program can be installed, some specify the number of users that connect and use the program remotely. Such agreements also stipulates limitations on the liability on the software vendor for the consequences of errors in the software. |
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| A version of Unix that was developed by the open-source community. The open-source community owns _, and there is no fee to use it. _ is a popular operating system for Web servers. |
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| An operating system developed by Apple Computer Inc, for the Macintosh. The current version is (_) X. Macintosh computers are used primarily for graphic artist and workers in the art community. _ was developed for the PowerPC, but as of 2006 will run on Intel processors as well. |
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| Virus that attaches itself to a Word, Excel, PowerPoint, or other type of document. When the infected document is opened the, the virus places itself in the start up files of the application. After that, the virus infects every file that the application creates or processes. |
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| A set of cells in which each cell holds a byte if data or instructions ; each cell has its on address, and the CPU uses the addresses to identify particular data items. |
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| The movement of programs and data into and out of memory. If a computer has insufficient memory for its workload, such swapping will degrade system performance. |
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| Hardware-Software product from Microsoft that enables people to interact with data on the surface of a table. A new product category. Surface is scheduled to be shipped in the winter of 2007-2008... |
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| Memory that preserves data contents even when not powered (eg. Magnetic disks and optical disks) With such devices, you can turn the computer off and back on, and the contents will remain unchanged. |
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| Software that can be used without having to make any changes |
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| Off-the-shelf with alterations software |
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| Software bought off the shelf but altered to fit the company's specific needs. |
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| One-of-a-Kind application |
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| Software that is developed for a specific, unique need, usually for a particular company's operations. |
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| A loosely coupled group of programmers who mostly volunteer their time to contribute code to develop and maintain common software. Linux and MySQL are 2 prominent products developed by such a community. |
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| A computer program that controls the computer's resources. It manages the contents of main memory, processes keystrokes and mouse movements, sends signal to the display monitor, reads and writes disk files, and controls the processing of other programs. |
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| The size of the pixel grid (eg. 1,024 X 768) on a video display monitor that will give the best sharpness and clarity. This _ depends on the size of the screen, the dot or pixel pitch, and other factors. |
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| Hardware that displays the results of the computer's processing. Consist of video displays, printers, audio speakers, overhead projectors, and other specialized devices, such as large, flatbed plotters. |
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| A group of fixes for high-priority failures that can be applied to existing copies of a particular product. Software vendors supply _ to fix security and other critical problems. |
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| A group of fixes for high-priority failures that can be applied to existing copies of a particular product. Software vendors supply _ to fix security and other critical problems. |
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| The program code of a virus that causes unwanted or hurtful actions, such as deleting programs or data, or even worse, modifying data in ways that are undetected by the users, |
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| A small spot on the screen of a video display monitor arranges in a rectangular grid. The number of _ displayed depends not only on the size of the monitor, but also the design of the computer's video card. The higher the number of _ displayed, the better the quality of the display. |
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| The distance between pixels on the screen of an LCD monitor; the smaller the _, the sharper and brighter the image will be. |
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| A computer with four CPUs |
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| Main memory consisting of cells that hold data or instructions. Each cell has an address that the CPU uses to read or write data. Memory locations can be read or written in any order, hence the term random access. _ memory is almost always volatile. |
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| On a disk, the amount of time it takes data to rotate under the read/write head. The faster the disk spins, the shorter the _. |
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| A measure of certain number of users of a software product by a company, for licensing purposes. |
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| On a disk, the time it takes the read/write arm to position the head over the correct circle. _ is determined by the make and model of the disk time. |
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| A computer that provides some type of service, such as hosting a database, running a blog, publishing a Web site, or selling goods. Server computers are faster, larger, and more powerful than client computers. |
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| A large collection of server computers that coordinates the activities of the servers, usually for commercial purposes. |
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| A license purchased by an organization to equip all the computers on a site with certain software. |
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| Cards that can be added to the computer to augment the computer's basic capabilities. |
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| Hardware that saves data and programs. Magnetic disk is by far the most common storage device, although optical disks like CDs and DVDS, are also popular. |
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| Software application that requires programs other than just the browser on a user's computer-that is, that requires code on both a client and server computers. |
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| A software application that requires nothing more that a browser and can be run only on the user's computer. |
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| Virus that masquerades as a useful program or file. The name refers to the gigantic mock-up of a horse that was filled with soldiers and moved into Troy during the Peloponnesian Wars. A typical _ appears to be a computer game, MP3 music file, or some other useful, innocuous program. |
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| An operating system developed at Bell labs in the 1970's. It has been the workhorse of the scientific and engineering community since then. |
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| A license offered by software vendors in the initial purchase of a product that allows users to obtain an updated version of the product for far less than the price of a new copy. |
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| Software that serves the need of a specific industry. Examples of such programs are those used by dental offices to schedula appointments and to bill patients, those used by auto mechanics to keep track of customer data and customer's automobile repairs, and those used by parts warehouses to track inventory, purchase, and sales. |
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| A traditional type of signal interface for LCD devices; it is less expensive than the newer DVI interface, but does not provide a good image. |
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| A dedicated part of a computer's special CPU and memory for storing and processing of video images. |
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| A computer program that replicates itself. |
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| Data that will be lost when the computer or device is not powered |
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| An operating system designed and sold by Microsoft. It is the most widely used Operating System. |
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| A virus that propagates itself using the internet or some other computer network. _ code is written specifically to infect another computer as quickly as possible. |
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