LVD

Reading: L buoy D
Full spelling: Low Voltage Differential
Field:
Personal computer > I/O > SCSI > LVD

With the bus drive system which is adopted with Ultra2 SCSI and Ultra160 SCSI, making use of the drive voltage of 3.3V +” ““-” the system which transfers the data with 2 these signal conductors. In one kind of differential system, voltage of the + signal conductor - when it is higher than voltage of the signal conductor “1”, makes the case where it is low “0 correspond”. Former differential system was 5V drive, but “HVD” (High Voltage Differential) with calling system until recently by the fact that LVD is defined you have distinguished. Because with LVD the signal pin of negative logic side it makes common with single-end HVD from the past vis-a-vis without having the compatibility of a certain single-end system, changing both systems, it made that you use possible.

LWP

Reading: [erudaburiyupi]
Full spelling: Light Weight Process
Alias:
Light weight process
Field:
OS > Technology > LWP

In OS which corresponds to multiple task, one of the executable units of the software. Inside one process furthermore plural processing in parallel, when operating, at the executable unit, “the thread” (thread) with almost the same meaning.

But the executable unit where process had the specific memory territory and the like becomes independent, LWP inside processing in parallel, is the executable unit which is formed in order to do plural processing temporarily. In order as for memory and the like to share those of parent process, forming process anew, rather than executing, there is a merit that the overhead and the like for context change may be little. Because of this, “light weight” (light weight) it reached the point where it is called in the name, process, but presently as for this kind of function what it calls the thread has become generally.

Lycos <[raikosu]>

Reading: [raikosu]
Field:
WWW > Sight > portal/search engine > Lycos

One of the portal sights which from the nineties latter half have popularity in approximately 2000. The full text retrieval type search engines focusing on it was formed with contents services.

Search project of the Carnegie melon university the Lycos corporation was established in the form which commercializes, started service in 1994 August. The same company in 2000 May was purchased at the Spanish common carrier Terra Networks corporation, became Terra Lycos.

In Japan other than the American Lycos corporation, the Sumisho Information Systems, the Sumitomo Corporation which has invested to IIJ and the CMGI corporation of the large shareholder (at that time) of the United States Lycos investing, the [raikosujiyapan] corporation was established to 1998 April. Starting the service with Japanese in earnest as “Lycos Japan” from October of the same year. After that, [raikosujiyapan] in 2002 December was purchased in optimism, information seeking of the same company affiliation was integrated in 2003 September

Lynx <Lynx>

Reading: Lynx
Field:
WWW > Browser > Lynx

The Web page the text (only letter) with one of the text browsers which are indicated. The perusal of Web becomes possible even by the terminal which does not have graphic presentation function. With the open source software which the group of the Kansas university starts developing, anyone gratuitous, procuring, it is possible to utilize. Originally, those which the software which was developed as portion of the same university intramural system, add Web browser performance on the nineties latter half, release outside. Presently we are transplanted in many environments including principal UNIX and Windows, most we have become with one of the text browsers which are utilized in the world.

LZ77

Reading: [eruzetsutonanajiyunana]
Full spelling: Lempel-Ziv 77
Field:
Expression of information > data compression > LZ77

The data compression algorithm which Abraham Lempel and Jacob ziv announce in 1977. Today, main current of data compression system is formed, “dictionary compression” (dictionary type encoding) it is the algorithm which has become the beginning.

The occasion where a certain data is compressed, the longest agreement character string is searched from midst of the data which is already read, it is the method of replacing at the position and agreement length if (you can discover).

For example, when compressing the document of English, we will assume that it came across to the word, “algorithm”. When this time, the word which “algorithm” already from the forefront of the English is called to 15th letter has appeared, “algorithm” is possible the fact that “15,9” of the meaning “the word which is here from the first 15th letter agreeing to 9 letters”, you call it substitutes with description to the change which is written. In this case as for “algorithm” 9 bytes, as for “15,9” because it is expressed at the amount of information of 3 bytes, it is possible to save the deducting 6 byte.