V

HIGH DENSITY COMPUTING

VDOLive ---------VT100

A | B | C | D | E |F | G | H |I | J| K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Vcache --- VT100

Pages 219 --- 222

Back  

Top of page

  Next
Page 219

Vcache --- Vector fonts

 
Vcache --- Windows 95 uses a new 32-bit VCACHE which replaces the older SmartDrive that ran under DOS and previous versions of Windows. VCACHE uses more intelligent caching algorithms to improve the apparent speed of your hard-drive as well as your CD-ROM and 32-bit network redirectors. Unlike SmartDrive, VCACHE dynamically allocates itself. Based on the amount of free system memory VCACHE allocates or de-allocates memory used by the cache.

VDOLive --- A technology that enables Internet video broadcasting and desktop video conferencing on the Internet and over regular telephone lines and private networks. VDOPhone which provides the abilty to have private point to point audio/video contact is currently only available for Windows95 and requires a Pentium proccessor. The VDOLive player however is available for Windows and Power Macs and provides the abilty as a Netscape plugin for viewing and hearing LIVE Internet Broadcasts.
ke Eudora - handle the vCard as an ordinary attachment.

Veronica --- (Very Easy Rodent Oriented Net-wide Index to Computerized Archives) -- Developed at the University of Nevada, Veronica is a constantly updated database of the names of almost every menu item on thousands of gopher servers. The Veronica database can be searched from most major gopher menus.
See Also: Gopher

Vector fonts --- A set of lines that connect points to form characters.

Page 220

Video conferencing --- Virtual machine

 
Video conferencing --- Conducting a conference between two or more participants at different sites by using computer networks or the Internet to transmit audio and video data. For example, a point-to-point (two-person) video conferencing system works much like a video telephone. Each participant has a video camera, microphone, and speakers mounted on his or her computer. As the two participants speak to one another, their voices are carried over the network and delivered to the other's speakers, and whatever images appear in front of the video camera appear in a window on the other participant's monitor.

Multipoint videoconferencing allows three or more participants to sit in a virtual conference room and communicate as if they were sitting right next to each other. Software programs such as
CUSeeMe have brought video conferencing to the Internet and are easily available and easy to use. SEE ALSO: desktop video.

Visual Interface --- A screen editor crufted together by Bill Joy for an early BSD release. Became the de facto standard UNIX editor and a nearly undisputed hacker favorite outside of MIT until the rise of EMACS after about 1984. Tends to frustrate new users no end, as it will neither take commands while expecting input text nor vice versa, and the default setup provides no indication of which mode the editor is in (one correspondent accordingly reports that he has often heard the editor's name pronounced /vi:l/). Nevertheless it is still widely used (about half the respondents in a 1991 USENET poll preferred it), and even EMACS fans often resort to it as a mail editor and for small editing jobs (mainly because it starts up faster than the bulkier versions of EMACS).

Video for windows --- A set of utilities and protocols for implementing full-motion video in Windows 95.

Virtual machine --- A "logical" computer that exists inside a PC. Multiple virtual machines can be running in a PC. Applications that run on one virtual machine are unlikely to affect the applications running on a different virtual machine. 16-bit applications (for example, Windows 3.1 applications) all run on the same virtual machine in Windows 95, thus, if one crashes, it is likely to make the rest of the 16-bit applications unusable as well. However, such an occurrence will likely NOT affect 32-bit applications that are running simultaneously.

Page 221

Virtual memory --- Virus

 
Virtual memory --- The use of permanent media (for example, hard drive) to simulate additional RAM (see swap file). This allows large applications to run in less physical RAM than they normally would require. When RAM runs low, the operating system uses a virtual memory manager program to temporarily store data on the hard disk like it was in RAM, which makes RAM free for data manipulation. When needed, the data is read back from the disk and reloaded into RAM.

Virus --- A virus is a computer program written to interrupt or destroy your work. A virus may do something as innocuous as display a message, or something as destructive as reformatting your hard drive--or almost anything in between. Your computer can "catch" a virus from a floppy disk, or even from a file downloaded from a remote source, such as a BBS. Once your computer has become "infected", the virus may spread via connections on a network or floppy disks you share with others. A variety of virus-detecting software exists, (including one packaged with Windows 95).

ViSCA --- A protocol for daisy chaining up to seven video devices together and connecting them to a single serial port.

Virtual --- Simulation of the real thing. Means the same as "almost". You will see this term appear before various computer terms to indicate simulation technology that enables you to cross boundaries and experience something without needing it's physical presence, as in virtual sex, and virtual theme parks.

Virtual circuit --- A reliable link between a user and an Internet site, even though the two are not communicating over a dedicated phone line.

Virus --- Your computer can get a virus just like your body can be invaded with a virus making you (or your computer) sick. A virus can wipe out information on your computer and create major havoc. Viruses usually originate from malicious people. You can unintentionally download virus from a web site or get it from a disk that someone has lent you. There are virus-checking programs, but there are new viruses popping up every day. So the best defense against a virus is to be very careful not to download programs or data from a site you're not familiar with.


Page 222

VMS --- VT100

 
VMS --- A main-frame OS, designed for multiple users. While a similar concept to UNIX, the commands, applications, etc. are all very different.

Volume --- Disk partition(s) formatted and available for use by the operating system.

Volume label --- The identifier for a volume (see volume) or diskette. This is specified when formatting the volume or diskette.
VRML --- Virtual Reality Modeling Language -- which is thought to be the coming addition to the WWW, adding 3-d interactive models to web-sites. If you think your graphic browser (esp. enhanced netscape) eats up RAM, wait until you see VRML! Right now, it can be added to netscape 1.2 (windows) & 2.0 (windows 95).

VRWeb --- VRWeb is a browser for 3D worlds and objects modeled in the Virtual Reality Modeling Language (VRML). VRWeb is the only VRML browser which is freely available in complete source code (under the GNU General Public License), does not require commercial packages such as Inventor or Motif, and which is capable of running on virtually all platforms.
VT100 --- The basic mainframe terminal emulation. Most dial-up accounts require VT100 or the later 102.

Back  

Top of page

  Home

[||Training ||Staff ||Links ||E-Mail ||Internet ||Website Design ||Weekly Computer Tip ||FAQ ||Home ||Glossary ||Examples||]