Published on August 6, 2014

Author: dipuradimirai

Source: authorstream.com


SUBJECT-IT SUBJECT(T)-RAHUL SIR : DIPURA CLASS-9/C ROLL-13 SUBJECT-IT SUBJECT(T)-RAHUL SIR DICTIONARY: COMPUTER DICTIONARY LETTER-A: LETTER-A PowerPoint Presentation: ABANDONWARE-Abandon ware is computer software (such as an operating system , word processor, interactive game, or audio file) that is no longer marketed or distributed by the company that created it, but is obtainable from some other section. ABSTRACTION-Abstraction (from the Latin abs, meaning away from and tracer, meaning to draw) is the process of taking away or removing characteristics from something in order to reduce it to a set of essential characteristics. In object-oriented programming, abstraction is one of three central principles (along with encapsulation and inheritance). PowerPoint Presentation: ANALOG- In telecommunications, an analog signal is one in which a base carrier's alternating current frequency is modified in some way, such as by amplifying the strength of the signal or varying the frequency, in order to add information to the signal. Broadcast and telephone transmission have conventionally used analog technology. APEX-Apex is a development platform for building software as a service ( SaaS ) applications on top of Salesforce.com's customer relationship management (CRM) functionality. Apex allows developers to access Salesforce.com's back-end database and client-server interfaces to create third-party SaaS application LETTER-B: LETTER-B PowerPoint Presentation: Broad agency announcement (BAA)- A broad agency announcement (BAA) is a notice from the government that requests scientific or research proposals from private firms concerning certain areas of interest to the government. Back link- In  Hyper-G  and possibly other  hypertext  systems, a backline is a link back to the page or one of the pages that currently link to the page you're using. Back links are already supported to some extent in the present Web system. BASIC -BASIC was an early programming language that is still among the simplest and most popular of programming languages. BASIC stands for "Beginner's All-purpose Symbolic Instruction Code." Byte-In most computer systems, a byte is a unit of data that is eight binary digits long. A byte is the unit most computers use to represent a character such as a letter, number, or typographic system. A byte can also hold a string of bits that need to be used in some larger unit for application purposes . : BASIC - BASIC was an early programming language that is still among the simplest and most popular of programming languages. BASIC stands for "Beginner's All-purpose Symbolic Instruction Code." Byte- In most computer systems, a byte is a unit of data that is eight  binary  digits long. A byte is the unit most computers use to represent a character such as a letter, number, or typographic system. A byte can also hold a string of bits that need to be used in some larger unit for application purposes . LETTER-C: LETTER-C LETTER-C: LETTER-C CA -Conditional access (CA) is a technology used to control access to digital television ( DTV ) services to authorized users by encrypting the transmitted programming. CA has been used for years for pay-TV services. CD -A compact disc is a small, portable, round medium made of molded polymer for electronically recording, storing, and playing back audio, video, text, and other information in  digital  form. PowerPoint Presentation: CIM -The Common Information Model (CIM) is a computer industry standard for defining device and application characteristics so that system administrators and management programs will be able to control devices and applications from different manufacturers or sources in the same way. coaxial cable -Coaxial cable is the kind of copper cable used by  cable TV  companies between the community antenna and user homes and businesses. Coaxial cable is called "coaxial" because it includes one physical  channel that carries the signal surrounded (after a layer of insulation) by another concentric physical channel, both running along the same axis LETTER-D: LETTER-D LETTER-D: LETTER-D DAM -Database activity monitoring (DAM) is the observation of actions in a database. DAM tools monitor, capture and record database events in near-real time and provide alerts about policy violations. DEN -Directory-Enabled Networking (DEN) is an industry-standard initiative and specification for how to construct and store information about a network's users, applications, and data in a central directory.  . PowerPoint Presentation: digital -Digital describes electronic technology that generates, stores, and processes data in terms of two states: positive and non-positive. Positive is expressed or represented by the number 1 and non-positive by the number 0. Thus, data transmitted or stored with digital technology is expressed as a string of 0's and 1's. DISA -Defense Information Systems Agency (DISA) is a U.S combat support agency that connects the U.S military and government though IT and communications support. Originally known as the defense communications industry (DCA), the agency was created in 1960, partially in response to communication issues during WWII Letter-e: Letter-e PowerPoint Presentation: EAI -EAI (enterprise application integration) is a business computing term for the plans, methods, and tools aimed at modernizing, consolidating, and coordinating the computer  application s in an  enterprise . ECM -Enterprise content management (ECM) is a set of defined processes that allow a corporation, agency or organization to obtain, organize, store and deliver information crucial to its operation in the most effective manner possible. PowerPoint Presentation: EMI -  Enterprise-mobile integration (EMI) is a form of fixed-mobile convergence ( FMC ) that provides integration between communications carriers and enterprise  network s. There are three major aspects to EMI:  database  synchronization, enterprise  messaging  and  Web services . EB -An exabyte (EB) is a large unit of computer data storage, two to the sixtieth power  byte s. The prefix  exa  means one billion billion , or one quintillion, which is a decimal term. Two to the sixtieth power is actually 1,152,921,504,606,846,976 bytes in decimal, or somewhat over a quintillion (or ten to the eighteenth power) . Letter-f: Letter-f PowerPoint Presentation: FAT -A file allocation table (FAT) is a table that an  operating system  maintains on a  hard disk  that provides a map of the  cluster s (the basic units of logical storage on a hard disk) that a file has been stored in. feed line -In a  wireless  communications or broadcasting antenna system, the feed line connects the antenna  to the receiver, transmitter, or  transceiver . The line transfers  radio-frequency  (RF) energy from a transmitter to an antenna, and/or from an antenna to a receiver, but, if operating properly, does not radiate or intercept energy itself. PowerPoint Presentation: floppy disk -A diskette is a random access, removable data storage medium that can be used with personal computers. The term usually refers to the magnetic medium housed in a rigid plastic cartridge measuring 3.5 inches square and about 2millimeters thick. flash mob -A flash mob is a group of strangers who organize themselves, using electronic media such as cell phones or the  Internet , to gather together in a public place, behave in a predetermined manner for a predetermined amount of time, and then quickly disperse. Letter-g: Letter-g PowerPoint Presentation: GIGO -GIGO (garbage in, garbage out) is a concept common to computer science and mathematics: the quality of output is determined by the quality of the input. So, for example, if a mathematical equation is improperly stated, the answer is unlikely to be correct. GB -A gigabyte (GB) is a measure of computer data storage capacity and is "roughly" a billion bytes. A gigabyte is two to the 30th power, or 1,073,741,824 in decimal notation. The term is pronounced with two hard Gs. The prefix, “GIGA" comes from a Greek word meaning "giant." . PowerPoint Presentation: Ghost -Ghost is a software product from Symantec that can  clone  (copy) the entire contents of a hard disk  to another computer's hard disk or to storage media, automatically formatting and partitioning the target disk.  GPRS -General Packet Radio Services (GPRS) is a  packet -based  wireless  communication service that promises data rates from 56 up to 114  Kbps  and continuous connection to the Internet for  mobile phone  and computer user. GUI-A GUI (usually pronounced GOO- ee ) is a graphical (rather than purely textual) user interface to a computer. As you read this, you are looking at the GUI or graphical user interface of your particular Web  browser Letter-h: Letter-h PowerPoint Presentation: hang -A hang-up, also called a hang, is a condition that sometimes occurs when computer programs conflict or do not run properly. The computer seems paralyzed. Clicking the mouse has no effect, regardless of where the arrow or cursor is placed. hard disk -A hard disk is part of a unit, often called a "disk drive," "hard drive," or "hard disk drive," that stores and provides relatively quick access to large amounts of data on an electromagnetically charged surface or set of surfaces.  PowerPoint Presentation: header -In information technology, a header is, in general, something that goes in front of something else and is usually repeated as a standard part of the units of something else. HTML -HTML (Hypertext Markup Language) is the set of  markup  symbols or codes inserted in a file intended for display on a World Wide Web  browser  page. The markup tells the Web browser how to display a Web page's words and images for the user. Letter-i: Letter- i PowerPoint Presentation: input/output -I/O (input/output), pronounced "eye-oh," describes any operation, program, or device that transfers data to or from a computer. Typical I/O devices are printers, hard disks, keyboards, and mouse's. ICP -An ICP (Internet commerce provider) is a company that sells software and services that enable a merchant with a  Web site  to build an online store on the merchant's own site or on the provider's site. PowerPoint Presentation: IMS -IMS (Intelligent Manufacturing Systems) is the name of an international organization devoted to developing the next generation of manufacturing and processing technologies. The organization provides support for projects consistent with the protection of intellectual property rights. ISP -An ISP (Internet service provider) is a company that provides individuals and other companies access to the Internet and other related services such as Web site building and virtual hosting . Letter-j: Letter-j PowerPoint Presentation: Java is a programming language expressly designed for use in the  distributed  environment of the Internet. It was designed to have the "look and feel" of the  C++  language, but it is simpler to use than C++ and enforces an  object-oriented programming  model .   JPEG -1) JPEG (Joint Photographic Experts Group) is an  ISO /IEC group of experts that develops and maintains standards for a suite of  compression   algorithm s for computer image files.2) JPEG (usually pronounced JAY- pehg ) is also a term for any graphic image file produced by using a JPEG standard.  : JBOD -JBOD (for "just a bunch of disks," or sometimes "just a bunch of drives") is an array of  hard disks  that haven't been configured according to the  RAID  (redundant array of independent disks) system. Jython -Jython is an  open source  implementation of the  Python  programming language, integrated with the  Java  platform. A programmer can compile Python  source code  to Java  bytecode  , and run the code on any Java  virtual machine  . The integration of Python and Java gives programmers access to all Java libraries. letter-k: letter-k PowerPoint Presentation: kilobyte -As a measure of computer  memory  or  storage , a kilobyte (KB or Kbyte*) is approximately a thousand  byte s (actually, 2 to the 10th power, or decimal 1,024 bytes). Kibi , mebi , gibi , tebi , pebi -Kibi , mebi , gibi , tebi , pebi , and exbi are binary prefix multipliers that, in 1998, were approved as a standard by the International Electrotechnical Commission (IEC) in an effort to eliminate the confusion that sometimes occurs between decimal (power-of-10) and binary (power-of-2) numeration terms. PowerPoint Presentation: KM -Knowledge management is the name of a concept in which an  enterprise  consciously and comprehensively gathers, organizes, shares, and analyzes its  knowledge  in terms of resources, documents, and people skills. KML -Keyhole Markup Language (KML) is an  XML -based markup language designed to annotate and overlay visualizations on various two-dimensional, Web-based online maps or three-dimensional Earth browsers (such as Google Earth).  Letter-l: Letter-l PowerPoint Presentation: LAN -A local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link. Typically, connected devices share the resources of a single processor or server within a small geographic area (for example, within an office building).  LILO -LILO ( LInux LOader ) is a  boot loader  (a small program that manages a  dual boot ) for use with the  Linux   operating system . Most new computers are shipped with boot loaders for some version of Microsoft  Windows  or the  Mac OS . PowerPoint Presentation:  log -An access log is a list of all the requests for individual files that people have requested from a Web site. These files will include the  HTML  files and their imbedded graphic images and any other associated files that get transmitted. LOM -Lights-out management (LOM) is the ability for a system administrator to monitor and manage servers by remote control. A complete LOM system consists of a hardware component called the LOM module and a program that facilitates the continuous monitoring of variables such as microprocessor temperature and utilization.  Letter-m: Letter-m PowerPoint Presentation: MUA -A mail user agent (MUA) is a program that allows you to receive and send e-mail messages; it's usually just called an e-mail program. To use an MUA such as Eudora or Microsoft Outlook, you install the MUA program on your computer and then use it to download and store e-mail messages to your computer; it will also allow you to read or write messages offline MICR -MICR (magnetic ink character recognition) is a technology used to verify the legitimacy or originality of paper documents, especially checks. Special ink, which is sensitive to magnetic fields, is used in the printing of certain characters on the original documents. Information can be encoded in the magnetic characters. PowerPoint Presentation: MODEM -A modem modulates outgoing  digital  signals from a computer or other digital device to analog  signals for a conventional copper  twisted pair  telephone line and demodulates the incoming analog signal and converts it to a digital signal for the digital device. MSP -A managed service provider (MSP) is a third-party contractor that delivers network-based services, applications and equipment to enterprises, residences or other service providers.  .  Letter-n: Letter-n PowerPoint Presentation: N AP -Microsoft Network Access Protection (NAP) is a  policy-based management  feature of Windows Server 2008 that allows a network administrator to control access to network resources. NEW-A command used befor writing a program so that the content does not overlap with the previous program. PowerPoint Presentation: NNM -The Network Node Manager (NNM) is a program that helps a  network administrator  view and manage the conditions in a computer network. NNM is part of the  OpenView  suite of enterprise system management applications from  Hewlett-Packard  (HP) non-impact -Over time, an inkjet printer is about ten times more expensive to operate than a laser printer because ink needs replenishing more frequently. A laser printer uses a non-impact (keys don't strike the paper) photocopier technology. Letter-o: Letter-o : OASIS -OASIS (Organization for the Advancement of Structured Information Standards) is a nonprofit, international consortium whose goal is to promote the adoption of product-independent standards for information formats such as Standard Generalized Markup Language ( SGML ), Extensible Markup Language ( XML ), and Hypertext Markup Language ( HTML ) OOP -Object-oriented programming (OOP) is a programming language model organized around objects  rather than "actions" and data rather than logic. Historically, a program has been viewed as a logical procedure that takes input data, processes it, and produces output data. PowerPoint Presentation: 0R -Operations research (OR) is an analytical method of problem-solving and decision-making that is useful in the management of organizations. In operations research, problems are broken down into basic components and then solved in defined steps by mathematical analysis. Oscillation -Oscillation, in general, is a periodic fluctuation between two things; in the broadest sense, oscillation can occur in anything from a person's decision-making process to tides and the pendulum of a clock. Letter-p: Letter-p PowerPoint Presentation: Pascal -Pascal is a  strongly-typed  third-generation language (3GL) with a one-pass  compiler . Designed for instructional purposes about 1967-68 by Nicholas Wirth, Pascal requires a programmer to define all routines and variables fully, including the nature of their use, before using them. PCS -PCS (personal communications service) is a  wireless  phone service similar to  cellular telephone  service but emphasizing personal service and extended mobility. It's sometimes referred to as  digital cellular  (although cellular systems can also be  digital ). PowerPoint Presentation: PRI-In the Integrated Services Digital Network ( ISDN ), there are two levels of service: the  Basic Rate Interface  (BRI), intended for the home and small enterprise, and the Primary Rate Interface (PRI), for larger users.  PRI -In the Integrated Services Digital Network ( ISDN ), there are two levels of service: the  Basic Rate Interface  (BRI), intended for the home and small enterprise, and the Primary Rate Interface (PRI), for larger users.  LETTER-Q: LETTER-Q PowerPoint Presentation: QC -Quality control (QC) is a procedure or set of procedures intended to ensure that a manufactured product or performed service adheres to a defined set of quality criteria or meets the requirements of the client or customer. QC is similar to, but not identical with, quality assurance  (QA). QVGA -QVGA (Quarter Video Graphics Array) is a small-screen display mode in which the resolution is 320  pixel s horizontally by 240 pixels vertically (320 x 240). This is 25 percent of the total number of pixels afforded by the VGA (Video Graphics Array) display mode originally introduced by  IBM  in 1987. PowerPoint Presentation: QSA -A Qualified Security Assessor (QSA) is a person who has been certified by the PCI Security Standards Council to audit merchants for Payment Card Industry Data Security Standard ( PCI DSS ) compliance. Queue -In general, a queue is a line of people or things waiting to be handled, usually in sequential order starting at the beginning or top of the line or sequence. In computer technology, a queue is a sequence of work objects that are waiting to be processed. LETTER-R: LETTER-R PowerPoint Presentation: RACE -Rapid Access Computing Environment (RACE) is a United States federal government infrastructure-as-a-service ( IaaS ) initiative for developing and testing new Department of Defense  (Odd) software applications. RARP -RARP (Reverse Address Resolution Protocol) is a  protocol  by which a physical machine in a local area network can request to learn its  IP address  from a  gateway  server's Address Resolution Protocol (ARP) table or cache. PowerPoint Presentation: ROWE -A Results-Only Work Environment (ROWE) is one in which the emphasis is on the actual work done. How or when that work is accomplished is not important. Employees are free to come and go as they please and work the hours that suit them from any location. RPG -RPG (Report Program Generator) is a programming language that originated as a report-building program used in DEC and IBM  minicomputer  operating systems and evolved into a fully procedural programming language.  Letter-s: Letter-s PowerPoint Presentation: SaaS -Software as a Service ( SaaS ) is a software distribution model in which applications are hosted by a vendor or service provider and made available to customers over a network, typically the Internet. Sensor -A sensor is a device that detects and responds to some type of input from the physical environment. The specific input could be light, heat, motion, moisture, pressure, or any one of a great number of other environmental phenomena. PowerPoint Presentation: SAR -A Suspicious Activity Report (SAR) is a document that financial institutions must file with the Financial Crimes Enforcement Network ( FinCEN ) following a suspected incident of money laundering or fraud. system software -System software is a type of computer  program  that is designed to run a computer’s hardware and  application programs . If we think of the computer system as a layered model, the system  software  is the interface between the hardware and user applications LETTER-T: LETTER-T PowerPoint Presentation: TB -A terabyte (TB) is a measure of computer  storage  capacity that is 2 to the 40th power or approximately a trillion bytes (that is, a thousand gigabytes). The prefix  tera  is derived from the Greek word for monster. TCP -TCP (Transmission Control Protocol) is a set of rules ( protocol ) used along with the Internet Protocol (IP) to send data in the form of message units between computers over the Internet PowerPoint Presentation: Tool Kit -Tool Kit ( Tk ) is a companion program to Tool Command Language ( Tcl ) for creating graphical user interfaces. Together with Tcl , Tk is a rapid program development tool from Scriptics . Both can be ordered from the Scriptics Web site. TTY -A teletypewriter (TTY) is an input device that allows alphanumeric  character  to be typed in and sent, usually one at a time as they are typed, to a computer or a printer. The Teletype Corporation developed the teletypewriter, which was an early interface to computers. LETTER-U: LETTER-U PowerPoint Presentation: UBL -Universal Business Language (UBL) is a royalty-free set of documents based on the  ebXML (Electronic Business  XML ) Core Components Technical Specification, also known as ISO 15000-5. UBL is overseen by  OASIS  (Organization for the Advancement of Structured Information Standards), a worldwide consortium devoted to the establishment of open  IT (information technology) standards Unified Modeling Language -UML (Unified Modeling Language) is a standard notation for the modeling of real-world objects as a first step in developing an object-oriented design methodology. Unified Modeling Language) E-Mail Print A AA AAA in Share Facebook Twitter Share This RSS Reprints UML (Unifi PowerPoint Presentation: UPS -An uninterruptible power supply (UPS) is a device that allows your computer to keep running for at least a short time when the primary power source is lost. It also provides protection from power surges. A UPS contains a  battery  that "kicks in" when the device senses a loss of power from the primary source. URL (Uniform Resource Locator) -A URL (Uniform Resource Locator, previously Universal Resource Locator) - usually pronounced by sounding out each letter but, in some quarters, pronounced "Earl" - is the unique address for a file that is accessible on the Internet. A common way to get to a  Web site  is to enter the URL of its  home page  file in your Web  browser 's address line.  LETTER-V: LETTER-V PowerPoint Presentation: VCD -VCD (also called video CD, video compact disc or "disc") is a  compact disk  format based on CD-ROM XA that is specifically designed to hold MPEG-1 video data and to include interactive capabilities. VCD has a resolution similar to that of VHS, which is far short of the resolution of DVD. VDU -A synonym sometimes used in the United States is video display terminal (  VDT  ). VDU seems to predominate elsewhere. The term is widely used in  ergonomic  discussions, guidelines, and standards related to worker safety and efficiency. PowerPoint Presentation: Viper -This definition is generally duplicated under  Viper .The Microsoft Transaction Server (MTS), called "Viper" while it was being developed, is a program that runs on an Internet or other network  server  with a  Windows NT  system and manages application and database  transaction  requests on behalf of a  client  computer user. VSM -Virtual systems management (VSM), also known as virtual system management, is the process of remotely managing the allocation and use of resources in conventional  network s as well as in virtual area networks (VANs), virtual private networks (VPNs), virtual network computing (VNC) and  virtual server s. LETTER-W: LETTER-W PowerPoint Presentation: WAIS -WAIS (Wide Area Information Servers) is an Internet system in which specialized subject databases are created at multiple  server  locations, kept track of by a  directory of servers  at one location, and made accessible for searching by users with WAIS  client  programs WAN-A wide area network (WAN) is a geographically dispersed telecommunications  network . The term distinguishes a broader telecommunication structure from a local area network ( LAN ). A wide area network may be privately owned or rented, but the term usually connotes the inclusion of public (shared user) networks. PowerPoint Presentation: WAP -WAP (Wireless Application Protocol) is a specification for a set of communication  protocol s to standardize the way that  wireless  devices, such as  cellular telephones  and radio transceivers, can be used for Internet access, including e-mail, the World Wide Web, newsgroups, and  instant messaging .  Web ring -A Web ring (or Webring ) is a way of interlinking related Web  site s so that you can visit each site one after the other, eventually (if you keep going) returning to the first Web site. Typically, users can also elect to go backwards through the ring of sites, skip a certain number at a time, visit sites randomly, or see a list of all the sites on the ring LETTER-X: LETTER-X PowerPoint Presentation: X server -An X server is a  server  of connections to  X terminal s in a distributed network that uses the  X Window System . From the terminal user's point-of-view, the X server may seem like a server of applications in multiple windows.  XAM -XAM (extensible Access Method) is a standard that makes it easier to manage  fixed data  by freeing data from dependencies on location,  applications  and  storage   devices. Created by the Storage Networking Industry Association ( SNIA ), XAM facilitates the exchange of data among content-addressed storage ( CAS ) systems, which store archive and compliance  data (often in an immutable form) PowerPoint Presentation: XPRL -XPRL (Extensible Public Relations Language) is an  open  specification for an  XML -based language being developed for the public relations sector. XPRL is similar to the Extensible Business Reporting Language ( XBRL ), but more specific to public relations applications.  Xon / Xoff - Xon / Xoff (sometimes written "X-on/X-off" or "XON/XOFF" and pronounced  eks -AWN eks -AWF ) is a protocol for controlling the flow of data between computers and other  device s on anasynchronous   serial  connection. For example, a computer typically sends data to a printer faster than the printer can print. LETTER-Y: LETTER-Y PowerPoint Presentation: Yacc - Yacc (for "yet another compiler compiler ." ) is the standard  parser  generator for the  Unix operating system. An  open source  program, yacc generates  code  for the parser in the  C programming language.  YMS -A yard management system (YMS) is a software system designed to oversee the movement of trucks and trailers in the yard of a manufacturing facility, warehouse, or distribution center. PowerPoint Presentation: Yukon-Yukon is the code name used for the beta version of  Microsoft 's SQL Server 2005. SQL Server 2005 is said to provide enhanced flexibility,  scalability , reliability, and security to database applications, and to make them easier to create and deploy, thus reducing the complexity and tedium involved in database management. YUM - Yellowdog Update, Modified (YUM) is a program that manages installation, updates and removal for  Red Hat package manager  (RPM) systems. YUM allows the user to update groups of machines without having to update each RPM separately. Letter-z: Letter-z PowerPoint Presentation: ZBR) -Zoned-bit recording (ZBR) is a method of physically optimizing the utilization of a  hard drive by placing more  sector s in the outer tracks than in the inner tracks. This technique is also known as zone-bit recording, zone recording, zone-density recording, or multiple-zone recording. zettabyte -A zettabyte is a measure of  storage  capacity and is 2 to the 70th power  byte s, also expressed as 10 21  or 1 sextillion bytes. One zettabyte is approximately equal to a thousand exabytes or a billion terabytes. PowerPoint Presentation: Zip drive -A Zip drive is a small, portable disk drive used primarily for backing up and archiving personal computer files. The trademarked Zip drive was developed and is sold by Iomega Corporation. Zip drives and disks come in two sizes. ZRTP -ZRTP is a voice over IP (VoIP) encryption extension for the Real-Time Transport Protocol (RTP). The "Z" in "ZRTP" is the first letter of the surname of Phil Zimmermann, an engineer best known for inventing Pretty Good Privacy (PGP). ZRTP is a part of a software developer's kit (SDK) for an encryption program Zimmerman created called Zfone

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