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What Does Traceability Matrix Mean? Techopedia Explains Traceability Matrix A traceability matrix is primarily used in software development projects to trace, identify and verify that a specific functionality or component is being developed. Typically, a traceability matrix is a worksheet type document consisting of a table(s). Two different sets of values are compared against each other by placing an identifier for one set in the top row, and the other set on the left column....

What Does Typewriter Mean? A typewriter is a hand-operated mechanical device with which on typing keys can produce printed characters on paper. There are different types of typewriters, including mechanical typewriters, electric typewriters and electronic typewriters. With the advent of personal computers and laptops, typewriters are rarely used anymore, although the QWERTY keyboard layout, which was designed for typewriters, is still used in most devices. Techopedia Explains Typewriter In a standard typewriter, each key is associated with a typebar which in turn has the letter molded in reverse onto its head....

What Does Abandonware Mean? Techopedia Explains Abandonware Popular abandonware includes classic video games played through freeware emulators, as well as outdated computer games and programs. If a company or the remaining legal entity voluntarily gives up its copyright, the abandonware is moved into the public domain and referred to as freeware from that point.

What Does Abstract Class Mean? In programming languages, an abstract class is a generic class (or type of object) used as a basis for creating specific objects that conform to its protocol, or the set of operations it supports. Techopedia Explains Abstract Class In object-oriented programming (OOP) languages, classes represent objects in the domain of the problem the software is intended to solve. Classes include collections of attributes (properties) and behaviors (methods), which can be based on previously-defined classes....

What Does Independent Hardware Vendor (IHV) Mean? An independent hardware vendor (IHV) is a company that makes a certain type of niche hardware that has to be compatible with broader hardware systems. These companies work to provide accessories for the hardware market that help developers and others to fully outfit extensive hardware and networking systems. Techopedia Explains Independent Hardware Vendor (IHV) An independent hardware vendor may make conventional equipment for desktop or laptop computers such as sound or graphics cards or other add-ons, or different kinds of hardware accessories for mobile networks or other types of technology....

What Does Invariant Mean? An invariant is a value or condition that is expected to be consistent during the execution of a process. Invariants are useful in testing the results of algorithms and the integrity of computer programs. Their predictability can simplify the process of assessing the validity of logical assertions, and invariants can be seen as points of reference within surrounding context. Techopedia Explains Invariant The earliest published observations of invariant phenomena are said to exist in Carl Friedrich Gauss’s widely influential late-eighteenth century text on number theory, “Disquititiones Arithmeticae....

What Does Command List (CLIST) Mean? CLIST (short for “command list”) is a programming language used for time sharing processes in complex storage systems. A CLIST program is a list of commands that can be executed together. Techopedia Explains Command List (CLIST) Since CLIST is an interpreted program and not a compiled program, it does not build a set of commands into an executable structure for run time. Instead, the machine translates the code into machine language each time it is run....

What Does Companion Virus Mean? A companion virus is a complicated computer virus which, unlike traditional viruses, does not modify any files. Instead, it creates a copy of the file and places a different extension on it, usually .com. This unique quality makes a companion virus difficult to detect, as anti-virus software tends to use changes in files as clue. The companion virus is an old type of virus that was more prominent during the MS-DOS era....

What Does Contextual Collaboration Software Mean? Contextual collaboration software is a type of software that facilitates group collaboration through a variety of interactive applications in a single interface. Such resources create a sense that remotely located collaborators are “working in the same room.” Contextual collaboration involves a high degree of presence technology, or tools that facilitate user interaction. Techopedia Explains Contextual Collaboration Software Common contextual collaboration elements include resources that function like standard instant messaging (IM) systems, where users can collaborate on shared goals through real-time chat....

What Does Heuristics Testing Mean? Heuristics testing is the testing of algorithms, code modules or other kinds of projects where testing strategies rely on past data about probabilities. These targeted types of testing often allow for more intelligent investigation of where any bugs or problems may occur. Heuristics testing is also used in screening technologies such as email filtering. Heuristics testing is also sometimes called experience-based testing. Developers or others may bring higher-level, experience-based decision making processes into how software testing is done in order to make this testing more efficient....

What Does Hybrid Fiber-Coaxial Cable (HFC Cable) Mean? A hybrid fiber-coaxial cable (HFC cable) is a communication medium that combines fiber optic and coaxial cable-based transmission modes into a unified path. It delivers voice, Internet, cable TV and other digital interactive solutions and services to individual consumers and organizations. HFC cable is used by telecommunication, cable TV and Internet companies. HFC cable is also known as hybrid fiber coax, hybrid fiber coaxial or hybrid fiber cable....

What Does Java Archive (JAR) Mean? Java archive (JAR) is a file format that contains bundled Java class files along with associated image/sound files, resources and metadata. It is usually a single, compressed file mostly used for supplying the necessary Java libraries and application software on a Java programming platform. The JAR file format is similar to the tape archive (TAR) file format used in Unix. Techopedia Explains Java Archive (JAR) As a building block in Java applications...

What Does Microsoft Project Mean? Microsoft Project is a set of tools for competent and well-organized project assistance and management. This software tool can be used to assist any sort of project from various lines of work such as construction, manufacturing, pharmaceuticals, government, retail, financial services and health care. Although developed by Microsoft, the software is not a part of the Microsoft Office suite. Techopedia Explains Microsoft Project Microsoft Project is offered in standard and professional editions, depending upon the project requirements and management level....

What Does Nubus Mean? A Nubus is a 32-bit parallel computer bus. It was created by the Massachusetts Institute of Technology and originated from the NuMachine workstation project, which designed workstations to interface with LANs using microprocessors. The MIT laboratory team for the NuMachine worked in collaboration with Western Digital. The original Nubus and NuMachine were designed for the Western Union NuMachine and for the Lisp Machines Incorporated LMI-Lambda. The NuMachine was used in components by Texas Instruments, Next, Incorporated (NeXT) and Apple Computer....

What Does Postcardware Mean? Postcardware is a particular type of software with a licensing agreement that requires the user to send the creator a postcard as a licensing process. This type of software license bridges the gap between freeware, where the user is not required to do anything, and traditionally licensed software that includes licensing fees. Techopedia Explains Postcardware In many cases, postcardware agreements are done on an honor system. In fact, because of practicality, rules for postcardware licensing are rarely enforced....

What Does Quux Mean? Quux is a meta-syntactic variable name invented only as a kind of nickname or placeholder. Like other variable names such as foo, quux may be used in computer programming as a variable name. Techopedia Explains Quux As a placeholder, quux is just an invented set of characters representing a variable. For example, instead of using a specific name for the variable based upon its properties and operations, many programmers might use “foo” for an initial variable, and then use “quux” for another variable....

What Does Snort Mean? Snort is an open-source security software product that looks at network traffic in real time and logs packets to perform detailed analysis used to facilitate security and authentication efforts. Techopedia Explains Snort Snort is useful for developers or others working on different types of system troubleshooting.

Call of Duty is gearing up for the newest iteration of battle royales with Warzone 2.0 launching this week. Preloading the game is available at this exact moment, so here’s what you need to know on Warzone 2.0’s install size, where to find it, how much storage the sequel will take up on your platform of choice and a friendly reminder of when it launches. Warzone 2 Install Size Explained Warzone 2....

What Does Trivial File Transfer Protocol (TFTP) Mean? Trivial File Transfer Protocol (TFTP) is a simple protocol used for transferring files. TFTP uses the User Datagram Protocol (UDP) to transport data from one end to another. TFTP is mostly used to read and write files/mail to or from a remote server. Techopedia Explains Trivial File Transfer Protocol (TFTP) File transfer is one of the most essential technologies for client/server and computer network infrastructures....

The season 3 finale of HBO’s Barry left behind so many questions, the most important being Barry’s fate. Sure, the show could have ended there, but HBO already greenlit the show for a fourth season. Naturally, fans of the show want to know: when does Barry season 4 come out? Barry Season 4 HBO Max Release Date While HBO has yet to announce an official date for Barry Season 4, the studio has confirmed that the new season of Barry will arrive in 2023....