Veronica:-

A search service built into the Gopher Internet application. When you use Veronica to search a series of Gopher menus (files, directories and other items), the results of the search is presented as another Gopher menu, which you can use to access the resources your search has located. Veronica allegedly stands for Very Easy Rodent-oriented Net-wide Index to Computer Archives.

Very Low-Frequency Emission:-

Abbreviated VLF. Radiation emitted by a computer monitor and other common household electrical appliances, such as televisions, hair dryers, electric blankets and food processors. VLF emissions range from 2 to 400 kHz and decline with the square of the distance form the source. Emissions are not constant around a computer monitor; they are higher from the sides and rear, and weakest from the front of the screen.

Sweden is the only country to have defined a set of standards for monitor emissions. In 1990, Mai Oct Provadet (MPR), the Swedish National Board for Meterology and Testing, revised its guidelines for acceptable VLF emissions as less than or equal to 25 nano Tesla (nT). A nanoTesla is a unit of measurement for small magnetic fields.

Video Adapter:-

An expansion board that plugs into the expansion bus in a DOS computer and provides the text and graphics output to the monitor. Some later video adapters, such as the SVGA, are included in the circuitry on the motherboard rather than as separate plug-in boards.

Video Conferencing:-

A method used to allow people at remote locations to join in a conference and share information. In a networked environment, video conferencing has gone way beyond looking at the picture of a person; users can look at and update looks, make drawings  or  sketches on a chalkboard, update spreadsheets, and so on, all online.

A video camera and a speaker-phone are linked to a PC at each site, and the PC in turn is linked to the network.

Video RAM:-

Abbreviated VRAM, pronounced "vee-ram." Special-purpose RAM random-access memory) with two data paths for access (conventional RAM has just one). These tow paths let a VRAM board manage two functions at once: refreshing the display and communicating with the processor. VRAM does not require the system to complete one function before starting the other, so it allows faster operation for the whole video system.

Virtual Data Network:-

A method used to provide full interconnection of all LAN segments without using dedicated circuits, so that customers only pay for the services they use. Also known as a virtual LAN.

Virtual Machine:-

An environment created by the operating system that  gives  each  executing application the illusion that it has complete control of an independent computer and can access all the system resources that it needs. For example, the Intel 80386 (and higher) processor en run multiple DOS applications in completely separate and protected address spaces using virtual 8086 mode.

Virtual Memory:-

A memory-management technique that allows information in physical memory to be swapped out to a hard disk if necessary. This technique provides applications with more memory space than is actually available in the computer. True virtual-memory management requires specialized hardware in the processor for the operating system to use; it is not just a matter of writing information out to a swap file on the hard disk at the application level.

In a virtual memory system, programs and their data are divided into smaller pieces called pages. When more memory is needed, the operating system decides which pages are least likely to be needed soon (using an algorithm based on frequency of use, most recent use, and program priority), and it writes these pages out to disk. The memory space that they used is now available to the rest of the system for other applications. When these pages are needed again, they are loaded back into real memory, displacing other pages.

Voice Mail:-

A computerized store-and-forward system for voice messages. A voice-mail system uses prerecorded messages to route the caller to the correct person, department, or mailbox, and then digitizes the incoming messages and stores them on disk for review by the recipient. Users can often forward voice-mail messages to another department or person after attaching their own comments.