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What Does Remote File Transfer Mean? A remote file transfer is the process of transferring or sending a file to a device or network node external to the local network. Techopedia Explains Remote File Transfer Remote file transfer is generally enabled through a file transfer application or file transfer protocol. Typically, remote file transfer first requires establishing a connection between the local and remote computer. This is generally done through a file transfer protocol such as FTP....

What Does Virtual Path Identifier (VPI) Mean? A virtual path identifier (VPI) is a data communication identifier that uniquely identifies a network path for an asynchronous transfer mode (ATM) cell packet to reach its destination node.VPIs are eight- to 16-bit numeric headers in ATM cell packets. ATM cells typically pass through ATM switches. VPI headers tell the switches where to route the packet. Each path has a specific proportion of bandwidth allocated to it....

What Does Vulnerability Management System Mean? A vulnerability management system is a system for managing software vulnerabilities. These vulnerability management systems consist of different kinds of features that can protect software programs and software environments from malware, viruses or hacking. Techopedia Explains Vulnerability Management System Experts define vulnerability management as the process of identifying, classifying and handling vulnerabilities. A comprehensive vulnerability management system promotes consistent processes for dealing with a wide spectrum of cyber threats....

What Does Acoustic Coupler Mean? An acoustic coupler is an audio interface device for coupling a computer with audio into or out of a telephone. It may also be a terminal device linking data terminals and radios with telephone networks. The link or interface is done by picking up audio signals from a telephone handset rather than a direct electrical connection. Techopedia Explains Acoustic Coupler Acoustic couplers were not allowed on telephones in the U....

What Does Embedded Processor Mean? An embedded processor is a microprocessor designed especially for handling the needs of an embedded system. Embedded systems require less power, so these processors are very small and draw less power from the source. An ordinary microprocessor only comes with the processor in the chip. The peripherals are separate from the main chip, resulting in more power consumption. Techopedia Explains Embedded Processor An embedded processor can be programmed specifically for the work it is intended to do....

What Does Interface (I/F) Mean? An interface specifies a group and/or a set of methods, which have not been implemented. When a class implements an interface, the class provides an implementation to all defined interface methods. A single class may implement any number of interfaces. Sometimes, constant declarations are included in an interface, along with method definitions. Disadvantages for the interface is that all interface methods must be public and only abstract methods may be used in an interface....

What Does Internal Bus Mean? An internal bus is a type of data bus that only operates internally in a computer or system. It carries data and operations as a standard bus; however, it is only used for connecting and interacting with internal computer components. Techopedia Explains Internal Bus An internal data bus enables the following:

What Does Automated Testing Mean? Automated testing (software test automation) is an approach to verifying code that makes use of special software tools that execute tests automatically and then compare actual test results with expected results. Automated tests save developers time and money by making the testing process more efficient.Automated tests identify errors more efficiently when compared to manual testing.When tests are automated, multiple testing tools can be deployed in parallel....

What Does Facebook f8 Mean? Facebook f8 is an annual developers’ conference that is held in San Francisco. The conference is for developers and entrepreneurs who are looking to learn about how to build social applications, as well as learn about Facebook’s new and existing products and technologies. Facebook also often uses the conference to make major announcements and set its agenda for the coming year. Techopedia Explains Facebook f8 Facebook held its first f8 conference in 2007 with the mission to bring together developers and entrepreneurs to help build a more social Web....

What Does Generator Locking (Genlock) Mean? Generator locking, also called genlock, is a technique of synchronizing video sources with the help of a signal from a signal generator as a reference. Genlock allows multiple videos in to remain properly synchronized with each other in situations such as a television studio with multiple cameras. Techopedia Explains Generator Locking (Genlock) Genlock technology is used to sync a number of cameras together so that if the source is switched from one to another, the frame rate, color burst and line rate remains the same between them....

What Does Hamming Distance Mean? A Hamming distance in information technology represents the number of points at which two corresponding pieces of data can be different. It is often used in various kinds of error correction or evaluation of contrasting strings or pieces of data. Techopedia Explains Hamming Distance While it may seem complicated and obscure on first glance, the Hamming distance is actually a very practical metric for measuring data strings....

What Does High Tech Mean? High tech is an abbreviation of “high technology,” which is a generic term referring to a broad range of industrial classifications and innovation. A study funded by the Workforce Information Council identified the high-tech sector to be that which includes a high concentration of workers in what is referred to as STEM (science, technology, engineering and mathematics). Techopedia Explains High Tech “High tech” is a term that is generally applied to economic and industrial sectors wherein technological innovation is emphasized....

What Does IO.SYS Mean? IO.SYS is a hidden executable binary file or hidden system file which processes instructions when the operating system is booted. It was an essential part of MS-DOS and Windows 9x systems. The instructions tell the operating system how the computer is set up. Together with the MSDOS.SYS system file, they made up Microsoft’s MS-DOS and were loaded into the memory of the computer. Techopedia Explains IO.SYS IO....

What Does Massively Parallel Processing (MPP) Mean? Massively parallel processing (MPP) is a form of collaborative processing of the same program by two or more processors. Each processor handles different threads of the program, and each processor itself has its own operating system and dedicated memory. A messaging interface is required to allow the different processors involved in the MPP to arrange thread handling. Sometimes, an application may be handled by thousands of processors working collaboratively on the application....

What Does Multipoint Videoconference Mean? Multipoint videoconferencing involves situations where videoconferencing equipment and systems are set up to serve more than two locations. By contrast, traditional point-to-point videoconferencing is a simple videoconference between two specific locations. Techopedia Explains Multipoint Videoconference In general, multipoint videoconferencing requires more resources and more specialized setups than a point-to-point videoconferencing system. Multipoint videoconferencing relies on something called a multipoint control unit or MCU that acts as a kind of bridge for the various pieces involved....

What Does Network Address Port Translation (NAPT) Mean? Network address port translation (NAPT) is a technique in which port numbers and private Internet Protocol (IP) addresses are mapped from multiple internal hosts to one public IP address. It is a type of network address translation (NAT) technology that extends capabilities by translating and mapping port numbers, in addition to the IP address, when communicating with an external network. Techopedia Explains Network Address Port Translation (NAPT) NAPT maps Transmission Control Protocol/User Datagram Protocol (TCP/UDP) port numbers and IP addresses of local devices with registered, public IP addresses and corresponding TCP/UDP ports....

What Does Radio Propagation Mean? Radio propagation is the way radio signals are transmitted from one point to another inside the earth’s atmosphere or free space. Since these are electromagnetic waves, they exhibit properties such as reflection, refraction, diffraction, absorption, polarization and scattering. Like light waves, radio waves can be reflected, refracted, diffracted, absorbed and polarized and scattered. Techopedia Explains Radio Propagation Radio propagation is never 100% predictable and that is why strong probabilistic concepts come into play while transmitting....

What Does Satellite Navigation Mean? Satellite navigation is a system which makes use of artificial satellites for providing autonomous geospatial positioning. In other words, satellite navigation systems can generate positioning information. Satellite navigation systems can also provide information regarding local time to high precision and can aid in time synchronization. Techopedia Explains Satellite Navigation With the help of transmitted time signals and electronic receivers, satellite navigation can determine a specific location with high precision....

What Does Scalable Orthogonal Frequency Division Multiple Access (SOFDMA or S-OFDMA) Mean? Techopedia Explains Scalable Orthogonal Frequency Division Multiple Access (SOFDMA or S-OFDMA) The sub-carrier spacing does not depend on bandwidth The volume of sub-carriers scales with bandwidth The smallest unit of bandwidth allocation, depending on the idea of sub-channels, is fixed and bandwidth independent The volume of sub-channels scales with bandwidth, and the ability of every individual sub-channel remains constant...

What Does Simula Mean? Simula is the name of a collection of programming languages pioneered in the 1960s in Norway. It represents a significant development in the programming systems of its time, and was instrumental in advancing the use of UNIVAC and other computer models in that era. Techopedia Explains Simula IT experts characterize Simula as in some ways the first object-oriented programming (OOP) language. Developers Ole-Johan Dahl and Kristen Nygaard helped lead the charge to design programming languages around objects instead of procedures or linear functions....