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| Trial versions of software usually contain all the functionality of the regular version, but can only be used for a limited time. |
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| a unique string of numbers separated by full stops that identifies each computer using the Internet Protocol to communicate over a network. |
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| a device which controls access to separately stored files, as part of a multi-user system. |
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| a local or restricted communications network, especially a private network created using World Wide Web software. |
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| An analog signal is any continuous signal for which the time varying feature (variable) of the signal is a representation of some other time varying quantity, i.e., analogous to another time varying signa |
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| A digital signal refers to an electrical signal that is converted into a pattern of bits. Unlike an analog signal, which is a continuous signal that contains time-varying quantities, a digital signal has a discrete value at each sampling point. |
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| nformation systems managers (IS Manager) implement information technology in an organization, overseeing a team of IT professionals. The role encompasses information systems planning, installation, and maintenance, including hardware and software upgrades. |
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| rrelevant or unsolicited messages sent over the Internet, typically to large numbers of users, for the purposes of advertising, phishing, spreading malware, |
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| a piece of code which is capable of copying itself and typically has a detrimental effect, such as corrupting the system or destroying data. |
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| structured set of data held in a computer, especially one that is accessible in various ways. |
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| Voice over Internet Protocol is a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions of the PSTN. |
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| Spyware is software that aims to gather information about a person or organization without their knowledge and that may send such information to another entity without the consumer's consent, or that asserts control over a computer without the consumer's knowledge. |
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| n computing, Trojan horse, or Trojan, is any malicious computer program which is used to hack into a computer by misleading users of its true intent. |
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| A pop-up blocker is software that prevents pop-up windows from appearing on a website. Some pop-up blockers work by immediately closing the pop-up window, while others disable the command that calls the pop-up window. Most browser software allows the user to turn the blocker on or off. |
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Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or work loads between peers. Peers are equally privileged, equipotent participants in the application. They are said to form a peer-to-peer network of nodes.
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| denoting a computer system in which a central server provides data to a number of networked workstations. |
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| n Internet slang, a troll (/ˈtroʊl/, /ˈtrɒl/) is a person who sows discord on the Internet by starting arguments or upsetting people, by posting inflammatory, extraneous, or off-topic messages in an online community (such as a newsgroup, forum, chat room, or blog) with the intent of provoking readers into an emotional ... |
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| the use of electronic communication to bully a person, typically by sending messages of an intimidating or threatening nature. |
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| An ad hoc network is a network that is composed of individual devices communicating with each other directly. The term implies spontaneous or impromptu construction because these networks often bypass the gatekeeping hardware or central access point such as a router. |
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| nfrared (IR) Infrared is a means of using light to transmit a signal over distance. The light frequency used in Infrared is above the range of visible light in the red end of the light spectrum. |
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| a frequency or band of frequencies in the range 104 to 1011 or 1012 Hz, suitable for use in telecommunications. |
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| computer analysis of the human voice, especially for the purposes of interpreting words and phrases or identifying an individual voice. |
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| a way of paying for goods by debit or credit card whereby one enters one's personal identification number in an electronic device rather than signing a slip. |
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| The translation of data into a secret code. Encryption is the most effective way to achieve data security. To read an encrypted file, you must have access to a secret key or password that enables you to decrypt it. Unencrypted data is called plain text ; encrypted data is referred to as cipher text. |
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| The Motherboard itself is a printed circuit board that allows the CPU, RAM, and all other computer hardware components to communicate with each other. There are huge variations in Motherboards from design, cases, power supply, size (Form Factor) and compatibility. |
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| In communication networks, a node (Latin nodus, 'knot') is either a connection point, a redistribution point (e.g. data communications equipment), or a communication endpoint (e.g. data terminal equipment). The definition of a node depends on the network and protocol layer referred to. |
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| n computer architecture, a processor register is a quickly accessible location available to a digital processor's central processing unit (CPU). Registers usually consist of a small amount of fast storage, although some registers have specific hardware functions, and may be read-only or write-only |
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| A wireless local area network (WLAN) is a wireless computer network that links two or more devices using a wireless distribution method (often spread-spectrum or OFDM radio) within a limited area such as a home, school, computer laboratory, or office building. |
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| A bitmap is a type of memory organization or image file format used to store digital images. The term bitmap comes from the computer programming terminology, meaning just a map of bits, a spatially mapped array of bits. |
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| Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygons—all of which are based on mathematical expressions—to represent images in computer graphics. Vector graphics are based on vectors (also called paths), which lead through locations called control points or nodes. |
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