The system hypothetical conversion technology which is adopted for the microprocessor of the Intel corporation. It makes that plural OS are operated in parallel with 1 computers possible.

OS usually, possessing all hardware resources of the computer, has designated that it operates as prerequisite. Because of this, in one computer originally only one OS it is possible to move. Hypothetical conversion technology of computer, one computer plural hypothetical machines (VM: Virtual Machine) It is the technology which makes that it divides logically as, becoming independent, it operates separate OS on the respective hypothetical machine possible.

VT is not something to which itself offers hypothetical conversion function, the hypothetical conversion software which offers the hypothetical machine to OS (VMM: Virtual Machine Monitor), various kind of functions which are easy to operate are offered.

VTX Videotex

Alias:
videotex
Field:
Communication service > public network > information service > VTX

It appeared time in the eighties, via the telephone line standard of the information system which letter and the still picture sending and receiving is done. 3 types of the North American NAPLPS system, European CEPT system and the Japanese CAPTAIN system it is decided as standard. The member connecting the private terminal which is set to the television to the telephone line connects to U.S. Information Center, can receive conversational information service. In Japan the service NTT with CAPTAIN system in 1984 was started, service of ticket reservation and shopping, the stock market condition and weather intelligence etc was offered, but when technology was immature, because the service which is charm in the dividing where the terminal is expensive was not offered, almost it did not spread. That with videotex service it succeeds almost only in the world it is said that it is “the Teletel” service of France.

VxD Hypothetical device driver

Reading: Buoy x D
Full spelling: Virtual Device Driver
Field:
Windows > Programming > VxD

The hardware control supervisor which is used with Windows 95/98 and Windows 3.1 (device driver) general term. Because 32 bit microprocessor peculiar function after i386 of the Intel corporation is used, also 32 bit device driver is called. “x” part changes, becomes with the type of hardware if for printer control if “VPD (Virtual Printer Driver)”, for control of display “VDD (Virtual Display Driver)” with. When there is trouble in VxD, because the whole system stops, development is difficult.

VXML VoiceXML

Field:
Expression of information > markup language > XML > VXML

The computer XML based language in order to construct the user interface which is operated in the indication with sound. It can utilize with the automatic response system and the like which is used in information service of the portable telephone and the support window etc of enterprise.

VoiceXML is utilized combining with the speech recognition engine and the speech synthesis engine, etc such as calling off the choices and accepting the input with sound and calling off the contents which correspond to input, can describe the structure of conversational application with XML. So far, it is possible to do the description of the user interface which is disjointed between the products with standardized technique.

In addition, the information service which can operate the portable telephone enterprise and the like with voice input/output (is called the “voice portal” and so on) to be also an example which is offered, special technology with VoiceXML as for the possession person of the contents not to need and to offer the audio corresponding Web sight it is possible

VxWORKS

Reading: [buietsukusuwakusu]
Field:
OS > Installation/real time > VxWORKS

For installed equipment of Wind River corporation real-time Operating System.

We are adopted to be wide in the aerospace defensive field where high reliability and safety are required, recently, for also the installed computer and the like of the general industrial equipment and the information home appliance are widely used.

The same company has purchased the development origin BSDi of BSD/OS in 2001, as for the same company make software TCP/IP network and the UNIX related system affinity is high

V series advice V series recommendations

Reading: Buoy series can body
Field:
Network technology > V series advice

Among advices of the International Telecommunication Union (ITU-T), those which decide the standard in order to do the data communication which utilizes the existing joining telephone network. It is stipulated concerning the signal processing system and error correction protocol etc of analog modem.