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Definition
| A type of Ethernet that conforms to the IEEE 802.3 protocol and allows for transmission at a rate of 10, 100, 1,000 Mbps (megabits per second) |
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Term
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Definition
| A point in a wireless network that facilitates communication among wireless devices and serves as a point of interconnection between wireless and wired networks. The access point must be able to process messages according to both the 802.3 and the 802.11 standards, because it sends and receives wireless traffic using the 802.11 protocol and communicates with wired networks using the 802.3 protocol. |
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Definition
| Programs that perform a business function. Some application programs are general purpose, such as Excel or Word. Others are specific to a business function, such as accounts payable. |
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Definition
| Computers represent data using |
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Definition
| A common wireless protocol desegined for transmitting data over short distances, replacing cables. |
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Definition
| (1) A character of data. (2) An 8-bit chunk. |
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Definition
| A type of modem that provides high speed data transmission using cable television lines. The cable company installs a fast, high-capacity optical fiber cable to a distribution center, the optical fiber cable connects to a regular cable-television cables that run to a subscribers' homes or businesses. Cable modems modulate in such a way that their signals do not interfere with TV signals. Like DSL lines, they are always on. |
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Term
| Central processing unit (CPU) |
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Definition
| The CPU selects instructions, processes them, performs arithmetic and logical comparisons, and stores results of operations in memory. |
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Definition
| A computer that provides word processing, spreadsheets, database access, and usually a network connection |
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Term
| Client-server applications |
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Definition
| Software applications that require code on both the client computer and the server computer. E-mail is a common example. |
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Definition
| Source code that is highly protected and only available to trusted employees and carefully vetted contractors |
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Definition
| A form of hardware/software outsourcing in which organizations offer flexible plans for customers to lease hardware and software facilities |
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| Custom-developed software |
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Definition
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Definition
| In the three-tier architecture, the tier that runs the DBMS and receives and processes SQL requests to retrieve and store data |
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Term
| Digital subscriber line (DSL) |
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Definition
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Definition
| A worldwide-unique name that is affiliated with a public IP address |
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Definition
| A device for converting computer signals to the format needed for DSL transmission |
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Definition
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Term
| File Transfer Protocol (FTP) |
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Definition
| A Layer-5 protocol used to copy files from one computer to another. In interorganizational transaction processing, FTP enables users to exchange large files easily |
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Definition
| An add-on to browsers that was developed by Adobe and is useful for providing animation, movies, and other advanced graphics within a browser |
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Term
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Definition
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Term
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Definition
| Consists of electronic components and related gadgetry that input, process, output, and store data according to the instructions encoded in computer programs or software |
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| Horizontal-market application |
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Definition
| Software that provides capabilities common across all organizations and industries |
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Term
| HTML ( Hypertext Markup Language) |
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Definition
| A language that defines structure and layout of Web page content. A HTML tag is a notation used to define a data element for display or other purposes |
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Term
| HTTP ( Hypertext Transport Protocol) |
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Definition
| A Layer-5 protocol used to process web pages |
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Term
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Definition
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Definition
| Pointers to other web pages |
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Term
| ICANN (Internet Corporation for Assigned Names and Numbers) |
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Definition
| The organization responsible for managing the assignment of public IP addresses and domain names for use on the internet. Each public IP address is unique across all computers on the internet. |
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Definition
| Wireless LAN connections use this |
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Term
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Definition
| Is used for wired LAN connections |
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Term
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Definition
| Typical devices are the keyboard, mouse, touch pad/screen, document scanners, and bar-code scanners |
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Definition
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Term
| Internet service provider (ISP) |
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Definition
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Term
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Definition
| The operating system used on the iPhone, iPad, and iPod Touch |
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Term
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Definition
| A Layer-3 protocol. As the name implies, it is used on the Internet, but it is used on many other internets as well. The chief purpose is to route packets across the internet. |
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Term
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Definition
| A series of dotted decimals in a format like 192.168.2.28 that identifies a unique device on a network or internet. |
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Term
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Definition
| The most commonly used Internet layer protocol |
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Term
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Definition
| An internet layer protocol created to provide for more IP addresses and other benefits |
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Definition
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Term
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Definition
| A computing device that includes important networking components, including a switch, a router, a DHCP server, and other elements |
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Term
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Definition
| 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 can connect to and use the program remotely. Such agreements also stipulate limitations on the liability of the software vendor for the consequences of errors in the software |
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Term
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Definition
| A version of Unix that was developed by the open source community. The open source community owns Linux, and there is no fee to use it. It is popular operating system for Web servers |
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Definition
| A network that connects computers that reside in a single geographic location on the premises of the company that operates the LAN. The number of connected computers can range from two to several hundred |
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Term
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Definition
| An operating system developed by Apple Computer, Inc., for the Macintosh. The current version is Mac OS X. Macintosh computers are used primarily by graphic artists and workers in the community. Mac OS was developed for the PowerPC, but as of 2006 runs on Intel processors as well. |
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Term
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Definition
| Code that has been complied from source code and is ready to be processed by a computer |
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Term
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Definition
| A set of cells in which each cell holds a byte of data or instruction; each cell has an address, and the CPU uses the addresses to identify particular data items |
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Term
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Definition
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Term
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Definition
| 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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Term
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Definition
| A collection of computers that communicate with one another over transmission lines |
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Term
| Network interface card (NIC) |
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Definition
| A hardware component on each device on a network (computer, printer, etc.) that connects the device's circuitry to the communications line. Works together with programs in each device to implement Layers 1 and 2 of the TCP/IP-OSI hybrid protocol |
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Term
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Definition
| Memory that preserves data contents even when not powered (e.q. magnetic and optical disks). With such devices, you can turn the computer off and back on, the contents will be unchanged |
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Term
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Definition
| A computer program that controls the computer's resources: It manages the contents of main memory, processes, keystrokes and mouse movements, sends signals to the display monitor, reads and writes disk files, and controls the processing of other programs |
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Term
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Definition
| A type of cable used to connect the computers, printers, switches, and other devices on a LAN. The signals on such cables are light rays, and they are reflected inside the glass core of the optical fiber cable. The core is surrounded by a classing to contain the light signals, and the classing, in turn, is wrapped with an outer layer to protect it. |
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Term
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Definition
| Hardware that displays the results of the computer's processing. Consists of video displays, printers, audio speakers, overhead projectors, and other special purpose devices, such as large, flatbed plotters. |
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Term
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Definition
| A small piece of an electronic message that has been divided into chunks that are sent separately and reassembled at their destination |
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Term
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Definition
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Term
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Definition
| A type of IP address used within private networks and internets. Are assigned and managed by the company that operates the private network or internet |
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Term
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Definition
| A standardized means for coordinating an activity between two or more entities |
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Term
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Definition
| An IP address used on the internet. Such IP addresses are assigned to major institutions in blocks by the ICANN. Each IP address is unique across all computers on the internet. |
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Term
| RAM (random access memory) |
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Definition
| 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. |
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Term
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Definition
| A special-purpose computer that moves network traffic from one node on a network to another |
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Term
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Definition
| A large collection of server computers that coordinates the activities of the servers, usually for commercial purposes |
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Term
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Definition
| In the three-tier architecture, the tier that consists of computers that run Web servers to generate Web pages and other data in response to request from browsers. Web servers also process application programs. |
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Term
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Definition
| A computer that provides some type of service, such as hosting a database, running a blog, publishing a Web site, or selling goods |
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Term
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Definition
| A browser add on that was developed by Microsoft to enhance browser features to improve the user interface; to include movies, audio, animation in Web sites; and to provide greater programmer control of user activity |
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Term
| Small office/home office (SOHO) |
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Definition
| A business office with usually fewer than 10 employees; often located in the business professional's home |
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Term
| SMTP (Simple Mail Transfer Protocol) |
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Definition
| A Layer-5 architecture used to send e-mail. Normally used in conjunction with other Layer-5 protocols for receiving e-mail |
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Term
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Definition
| Computer code as written by humans and that is understandable by humans. Must be translated into machine code before it can be processed. |
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Term
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Definition
| A special-purpose computer that receives and transmits data across a network |
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Term
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Definition
| In markup language such as HTML and XML, notation used to define a data element for display or other purposes. |
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Term
| TCP (Transmission Control Protocol) |
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Definition
| The most important protocol in the transport layer. One of its most easily understood functions is that TCP programs break internet traffic into pieces and send each piece along its way. This protocol works with TCP programs on other devices in the internet to ensure that all of the pieces arrive at their destination. |
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Term
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Definition
| A protocol architecture having four layers; forms the basic for the TCP/IP-OSI architecture used by the internet |
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Term
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Definition
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Term
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Definition
| A software application that requires programs other than just the browser on a user's computer; that is, that requires code on both client and server computers |
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Term
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Definition
| A software application that requires nothing more than a browser and can be run on only the user's computer |
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Term
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Definition
| Architecture used by most e-commerce server applications. |
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Term
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Definition
| An operating system developed at Bell Labs in the 1970s. It has been the workhorse of the scientific and engineering communities since then. |
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Term
| Unshielded twisted pair (UTP) cable |
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Definition
| A type of cable used to connect the computers, printers, switches, and other devices on LAN. |
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Term
| URL (Uniform Resource Locator) |
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Definition
| A document's address on the Web. |
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Term
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Definition
| In the three-tier architecture, the tier that consist of computers that have browsers that request and process web pages |
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Term
| Vertical-market application |
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Definition
| Software that serves the needs of a specific industry. |
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Term
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Definition
| Something that appears to exist that does not in fact exist |
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Term
| Virtual private network (VPN) |
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Definition
| A WAN connection alternative that uses the Internet or a private internet to create the appearance of private point to point connections |
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Term
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Definition
| Data that will be lost when the computer or device is not powered |
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Definition
| A communication system that provides wireless connectivity to a wide area network |
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Term
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Definition
| The Internet-based network of browsers and servers that process HTTP or HTTPS |
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Term
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Definition
| A facility that runs multiple Web servers. |
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Term
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Definition
| Document encoded in HTML that is created, transmitted, an used using the World Wide Web |
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Term
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Definition
| A program that processes the HTTP protocol and transmits Web pages on demand. |
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Term
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Definition
| A network that connects computers located at different geographic locations |
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Term
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Definition
| An emerging technology based on the IEEE 802.16 standard |
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Term
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Definition
| An operating system designed and sold by Microsoft |
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Term
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Definition
| Devices that enable wireless networks by communicating with wireless access points |
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Term
| XML (eXtensible Markup Language) |
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Definition
| An important document standard that separates document content, structure, and presentation; eliminates problems in HTML |
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