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Webopedia: Online Tech Dictionary for IT Professionals

Webopedia is an online dictionary and Internet search engine for information technology and computing definitions. Voted Best Technology Website.

https://www.webopedia.com/


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The Five Generations of Computers - Webopedia Reference

Learn about each of the five generations of computers and major technology developments that have led to the computing devices that we use today.

https://www.webopedia.com/DidYouKnow/Hardware_Software/FiveGenerations.asp


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What is WPA2-PSK? Webopedia Definition

Short for Wi-Fi Protected Access 2 - Pre-Shared Key, and also called WPA or WPA2 Personal, it is a method of securing your network using WPA2 with the use of the optional Pre-Shared Key (PSK) authentication, which was designed for home users without an enterprise authentication server.. To encrypt a network with WPA2-PSK you provide your router not with an encryption key, but rather with a ...

https://www.webopedia.com/TERM/W/WPA2_PSK.html


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Huge List of Texting & Chat Abbreviations - Webopedia

Huge List of 1,559 Text and Chat Abbreviations. While it does seem incredible that there are thousands of text abbreviations, keep in mind that different chat abbreviations are used by different groups of people.For example, online gamers are likely to use text abbreviations not used by a financial blogger.

https://www.webopedia.com/quick_ref/textmessageabbreviations.asp


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The @ Symbol Meaning & History | Webopedia

Before the @ symbol became a standard key, the @ sign had a long past. Learn its history, use & meaning now.

https://www.webopedia.com/DidYouKnow/Internet/HistoryofAtSign.asp


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Countries and Their Domain Extensions - Webopedia.com

A list of different country domain extensions and their corresponding countries sorted alphabetically according to the file extension starting with letters A-E.

https://www.webopedia.com/quick_ref/topleveldomains/countrycodeA-E.asp


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What is @ sign? Webopedia Definition

Pronounced at sign or simply as at, this symbol is used in e-mail addressing to separate the user' name from the user's domain name, both of which are necessary in order to transmit emails.For example, the e-mail address [email protected] indicates that the user named webmaster receives e-mail "at," or "@," the webopedia.comdomain.. Also see The History of the @ Sign.

https://www.webopedia.com/TERM/_/_sign.html


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What Are IRQ Numbers? - Webopedia

The following list of IRQ numbers specifies what each of the 16 IRQ lines are used for.

https://www.webopedia.com/quick_ref/IRQnumbers.asp


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What is System Volume (SYSVOL)? Webopedia Definition

In Microsoft Windows, the System Volume (Sysvol) is a shared directory that stores the server copy of the domain's public files that must be shared for common access and replication throughout a domain. The term SYSVOL refers to a set of files and folders that reside on the local hard disk of each domain controller in a domain and that are replicated by the File Replication service (FRS).

https://www.webopedia.com/TERM/S/SYSVOL.html


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What is Subnet Mask and Subnetting? Webopedia Definition

Subnet mask is a mask used to determine what subnet an IP address belongs to. An IP address has two components, the network address and the host address. For example, consider the IP address 150.215.017.009.Assuming this is part of a Class B network, the first two numbers (150.215) represent the Class B network address, and the second two numbers (017.009) identify a particular host on this ...

https://www.webopedia.com/TERM/S/subnet_mask.html


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What are Internet Cookies and What Do They Do? - Webopedia

The main purpose of a cookie is to identify users and possibly prepare customized Web pages or to save information. What do Cookies Do? A cookie (called an Internet or Web cookie) is the term given to describe a type of message that is given to a web browser by a web server.The main purpose of a cookie is to identify users and possibly prepare customized Web pages or to save site login ...

https://www.webopedia.com/DidYouKnow/Internet/all_about_cookies.asp


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What is Intermediate Distribution Frame (IDF)? Webopedia ...

Short for intermediate distribution frame, a cable rack that interconnects and manages the telecommunications wiring between an MDF and workstation devices.Cables entering a building run through a centralized MDF, then each individual IDF and then on to specific workstations. For example, an enterprise that encompasses a building with several floors may have one MDF on the first floor and one ...

https://www.webopedia.com/TERM/I/IDF.html


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The 7 Layers of the OSI Model - Webopedia Study Guide

The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. Use this handy guide to compare the different layers of the OSI model and understand how they interact with each other.

https://www.webopedia.com/quick_ref/OSI_Layers.asp


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What is Automatic Private IP Addressing (APIPA)? Webopedia ...

APIPA is short for Automatic Private IP Addressing, a feature of Windows operating systems, meant for non-routed small business environments, usually less than 25 clients.. With APIPA, DHCP clients can automatically self-configure an IP address and subnet mask when a DHCP server isn't available. When a DHCP client boots up, it first looks for a DHCP server in order to obtain an IP address and ...

https://www.webopedia.com/TERM/A/APIPA.html


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What is customer service center? Webopedia Definition

Also called a contact center, a customer service center is a type of call center that is equipped to handle large amounts of customer telephone requests for an organization -- in addition to handling other customer communications -- from a single facility.. While a call center mainly focuses on telephone communications, a customer service center will typically handle additional types of ...

https://www.webopedia.com/TERM/C/customer_service_center.html


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What is Mail Relay? Webopedia Definition

Mail relay is often referred to as an e-mail server, a device and/or program that routes an e-mail to the correct destination.Mail relays are typically used within local networks to transmit e-mails among local users, for example, all of the student and faculty e-mail of a college campus.. Mail relays are particularly useful in e-mail aliasing where multiple e-mail addresses are used but the ...

https://www.webopedia.com/TERM/M/mail_relay.html


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What is Color Separation? Webopedia Definition

The act of decomposing a color graphic or photo into single-color layers. For example, to print full-color photos with an offset printing press, one must first separate the photo into the four basic ink colors: cyan, magenta, yellow, and black ().Each single-color layer is then printed separately, one on top of the other, to give the impression of infinite colors.

https://www.webopedia.com/TERM/C/color_separation.html


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What is a Server Operating System? Webopedia Definition

The server operating system, or server OS, is the software layer on top of which other software programs, or applications, can run on the server hardware.Server operating systems help enable and facilitate typical server roles such as Web server, mail server, file server, database server, application server and print server.

https://www.webopedia.com/TERM/S/server_operating_system.html


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What Is Siri Eyes Free? Webopedia Definition

An extension of Apple's Siri functionality for enabling voice control of an iOS mobile device that is linked with a car's in-dash audio system. With Siri Eyes Free, drivers can speak natural language voice commands in order to operate the mobile device as well as the car's sound or in-vehicle infotainment system.. Siri Eyes Free operates via a voice command button on the car's steering wheel ...

https://www.webopedia.com/TERM/S/siri_eyes_free.html


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Are Deleted Files Completely Erased? - Webopedia Reference

A common misconception when deleting files is that they are completely removed from the hard drive. A common misconception when deleting files is that they are completely removed from the hard drive.However, users should be aware that highly sensitive data can still be retrieved from a hard drive even after the files have been deleted because the data is not really gone.

https://www.webopedia.com/DidYouKnow/Hardware_Software/Erasing_Deleted_Files.asp


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What is Execute Disable Bit? Webopedia Definition

Execute Disable Bit (EDB) is an Intel hardware-based security feature that can help reduce system exposure to viruses and malicious code.EDB allows the processor to classify areas in memory where application code can or cannot execute.When a malicious worm attempts to insert code in the buffer, the processor disables code execution, preventing damage and worm propagation.

https://www.webopedia.com/TERM/E/Execute_Disable_Bit.html


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What is switched Ethernet? Webopedia Definition

An Ethernet LAN that uses switches to connect individual hosts or segments.In the case of individual hosts, the switch replaces the repeater and effectively gives the device full 10 Mbps bandwidth (or 100 Mbps for Fast Ethernet) to the rest of the network.This type of network is sometimes called a desktop switched Ethernet. In the case of segments, the hub is replaced with a switching hub.

https://www.webopedia.com/TERM/S/switched_Ethernet.html


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How is a server different from a desktop? Webopedia.com

A small business might be tempted to save money by simply running a server operating system on a desktop computer -- but this isn't a replacement for real server hardware.

https://www.webopedia.com/DidYouKnow/Hardware_Software/difference_between_server_and_desktop.html


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Best ERP Software 2020 | Webopedia

Enterprise resource planning (ERP) is business process management software that allows an organization to use a system of integrated applications to manage the business and automate many back office functions related to technology, services and human resources.. ERP software typically integrates all facets of an operation — i ncluding product planning, development, manufacturing, sales and ...

https://www.webopedia.com/TERM/E/ERP.html


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What is Joint Application Development? Webopedia Definition

Joint Application Development (JAD) is a development methodology system originally used for designing a computer-based system, but can be applied to any development process. It involves continuous interaction with the users and different designers of the system in development. JAD centers around a ...

https://www.webopedia.com/TERM/J/Joint_Application_Development.html


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List of Android Versions (Codenames)? Webopedia Definition

Android versions (codenames) are used to describe the various updates for the open source Android mobile operating system.Android versions are developed under dessert-inspired codenames (up until the 2019 Android 10 release), with each new version arriving in alphabetical order with new enhancements and improvements to the Android SDK.

https://www.webopedia.com/TERM/A/android_codenames.html


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What is Web-Scale IT (Web Scale Infrastructure)? Webopedia ...

Web-scale IT is used to reference a global-class of computing — or an architectural approach — used to deliver the capabilities of large cloud service providers within an enterprise IT setting. The approach is to design, build and manage data center infrastructure where capabilities go beyond ...

https://www.webopedia.com/TERM/W/web-scale-it.html


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Network File Recovery: How To Undelete a Delete ...

Undelete: A Recycle Bin Replacement. You can use a recycle bin replacement, such as Undelete by Diskeeper Corporation, to get the file recovery support for shared drives and folders.These third-party programs are all-in-one deletion recovery solutions.

https://www.webopedia.com/DidYouKnow/Computer_Science/network_file_recovery.asp


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Wireless Networking Standards - Webopedia.com

Wireless networking is becoming increasingly important to businesses, both small and large. Use this chart to make sense out of all the wireless local-area network standards.

https://www.webopedia.com/quick_ref/WLANStandards.asp


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DM Meaning & Definition | What is Direct Message?

A DM, or direct message, is a private messaging channel between two users on a social media platform. Ever since the advent of the internet, online communication through chatting has been a popular pastime.DM is the modern iteration of older chatting terms like IM (instant messaging) and PM (private messaging). On some DM platforms, you have the ability to add multiple users into a chat as ...

https://www.webopedia.com/TERM/D/DM.html


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What Is Static Scope? | Definition & Meaning

Static scope in programming declares variables lexically, depending on the logical structure and organization of the program. In programming, scope declares a range in which a variable is visible and usable. Scope is useful because it differentiates sections of a program and the variables within ...

https://www.webopedia.com/TERM/S/static-scope.html


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The Difference Between Laptop and Desktop Memory ...

What Is Memory, or RAM? System memory, frequently called main memory or RAM (Random Access Memory), is a type of computer memory that can be accessed randomly. That is, any byte of memory can be accessed without touching the preceding bytes. RAM is the "working memory" storage area within the computer.

https://www.webopedia.com/DidYouKnow/Computer_Science/laptop_desktop_memory.asp


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What Is Cridex? Webopedia Definition

Cridex is a sophisticated strain of banking malware that can steal banking credentials and other personal information on an infected system in order to gain access to the financial records of a user.. The Cridex Trojan Horse spreads by copying itself to mapped and removable drives on infected computers. Cridex creates a backdoor entry point on infected systems, enabling the possibility for ...

https://www.webopedia.com/TERM/C/cridex-malware.html


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Mobile Operating Systems (Mobile OS) Explained by ...

A mobile operating system is an operating system designed to run on mobile devices such as a smartphone, PDA, tablet or other mobile computing device.

https://www.webopedia.com/DidYouKnow/Hardware_Software/mobile-operating-systems-mobile-os-explained.html


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Big-Endian Meaning & Definition | What is Big-Endian?

The adjectives big-endian and little-endian refer to which bytes are most significant in multi-byte data types and describe the order in which a sequence of bytes is stored in a computer's memory.. In a big-endian system, the most significant value in the sequence is stored at the lowest storage address (i.e., first). In a little-endian system, the least significant value in the sequence is ...

https://www.webopedia.com/TERM/B/big_endian.html


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Easter Egg Meaning & Definition | What is Easter Egg?

An Easter egg is a secret image, message, feature, or action that is embedded within a movie, video game, application, or other media/program. Sometimes a reference to another recognizable pop culture item, an Easter egg is often put in place purely for entertainment purposes. Other times, an Easter egg is used for efficiency, as in the case of animators who reuse characters or illustrations ...

https://www.webopedia.com/TERM/E/easter_egg.html


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The Difference Between an iPod and a MP3 Player ...

An iPod is really just a brand of MP3 Player, with some exclusive differences. Read on to lean more about MP3 Player Vs iPod. PMP devices, which is short for portable music player, is a term used to describe any digital portable music player that allows you to download or save digital music files (in MP3 format) directly onto the device, or from from your computer or notebook to play on a PMP.

https://www.webopedia.com/DidYouKnow/Hardware_Software/iPod_mp3Player.asp


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What is J2EE? Webopedia Definition

Short for Java 2 Platform Enterprise Edition.J2EE is a platform-independent, Java-centric environment from Sun for developing, building and deploying Web-based enterprise applications online.The J2EE platform consists of a set of services, APIs, and protocols that provide the functionality for developing multitiered, Web-based applications. Some of the key features and services of J2EE:

https://www.webopedia.com/TERM/J/J2EE.html


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Analog Definition & Meaning | What is an Analog?

Analog is an adjective that describes a device or system in which information is represented by continuously variable physical quantities. A record player is a simple example of an analog device; the needle continuously reads the bumps and grooves on a record. A clock with hands is also an example ...

https://www.webopedia.com/TERM/A/analog.html