With Active Directory of Windows 2000, among the functions which the domain controller takes charge, it is the function where the domain controller of specification independently processes.

1 domain controllers, 1 domain controllers it takes charge rear three concerning domain one “schemer master” “[domeinnemingu] master” “RID master” “PDC emulator” there is a function of 5 types of “[inhurasutorakuchiya] master,” as for front two concerning forest one.

With Active Directory, the plural domain controllers have duplicated directory information generally mutually, working with whichever domain controller, it is possible to renew the data in the same way. But, when that kind of type is taken in regard to job such as password modification, because there is a problem such that consistency of the data deviates, it is designed in such a way that you cannot work with only the domain controller of the specification which is decided beforehand.

FSO

Reading: F s o
Full spelling: Free Space Optics
Field:
Network technology > radio > FSO

The high speed which uses light information of a quantity mW which does not have influence in the human body the communication system. 750 - The distance maximum of 200 - 500m you tie at the transmission speed 156 - 622Mbps with the feeble light ray of the wave length which is close to the infrared ray of 1550nm.

The equipment is installed in the roof and the like of the building, because just connects with indoor network communication can be started, installation being simple in comparison with the optical fiber, also the cost which depends on network construction is cheap. Because of this, it is utilized as network below for backup of local network and the communication carrier which tie between the high rise buildings. The case of the American simultaneous occurring frequently terrorism of 2001 September, the result that was left it makes the high-speed network around the international trade center building restore temporarily in several days.

FSTN liquid crystal

Reading: F s tea n you obtain and do to start the [yo] [u]
Full spelling: Film compensated Super Twisted liquid crystal
Field:
Imaging > display > liquid crystal > FSTN liquid crystal

In order between the liquid crystal panel and the polarizing plate, to do color correction, the thing liquid crystal which puts in place 1 compensating films. The compensating film 2 as for those which are calls the TSTN (Triple Super Twisted Nematic) liquid crystal.

With the STN liquid crystal and the DSTN liquid crystal which are used until recently, the gap of a polarized light state with the wave length of light was large, color display from the first had difficulty even in pure black and white indication. In order to revise this, with FSTN the high-molecular film (compensating film) which has the birefringence which compensates phase is put on the surface of the operational cell of the liquid crystal, indicatory ability of the liquid crystal is raised.

Until recently being small size lightweight in comparison with system, a merit, an electric power and cost low low there is. Because of this, FSTN liquid crystal display to be wide has spread in the portable telephone and the portable information terminal, but the fault which STN system has is overcome completely, we have not reached, with the notebook PC and liquid crystal display the TFT liquid crystal is main current.

FTP

Reading: The f tea tweet
Full spelling: File Transfer Protocol
Field:
Network technology > TCP/IP > FTP
Internet > FTP
WWW > FTP

When transferring the file with TCP/IP network of Internet and Intranet etc, the protocol which is used.

It is the protocol which is utilized frequently along with HTTP and SMTP/POP with present Internet. FTP is defined with RFC 959 by IETF.

ftpd

Reading: The f tea tweet D
Full spelling: File Transfer Protocol Daemon
Field:
OS > UNIX > ftpd