At portion of the parallel SCSI standard which is included in SCSI-3 standard, those which furthermore strengthen Ultra SCSI specification. Simultaneous transfer capacity is specification of transfer rate 40MB/s at 8 bit width.

The connector cable to use those of 68 pin connectors, as for the maximum connection quantity at 8 as for cable maximum length 12m.

You can use the new differential drive system where with Ultra2 SCSI, other than the single-end drive system differential drive system which is used until recently, “LVD” (Low Voltage Differential) with you say.

LVD operates with 3.3V vis-a-vis former differential drive driving at the voltage of 5V. Because of this, former differential drive system is called “HVD” (High Voltage Differential) also

Narrow Ultra SCSI

Field:
Personal computer > I/O > SCSI > Narrow Ultra SCSI

Is included in SCSI-3 standard at portion of the parallel SCSI standard which, simultaneous transfer capacity at 8 bit width specification of transfer rate 20MB/s.

In the specification which raises transfer rate former SCSI-2 (Fast SCSI) with drive frequency as time, maximum cable length at the time of single-end drive with 8 connections to 1.5m, with 4 unit connections to 3m, differential drive (HVD) the time at the time of 8 connection has become to 25m.

After that if differential drive of the voltage which is introduced from Ultra2 SCSI which appears (LVD) with it operates low, while maintaining the single-end equipment and compatibility, even at the time of 8 unit connection to 12m extended possibility.

There is also a Wide Ultra SCSI specification which does transfer at 16 bit width, this transfer rate is 40MB/s.

NAS Network connected storage

Reading: Eggplant
Full spelling: Network Attached Storage
Alias:
Network storage
Field:
Storage > structure > NAS

Connecting to network directly, the file server private machine which you use. As the hard disk and network interface, the single functional server who unifies OS and the administrative use utility etc (the appliance server) with, the storage unit connected to network immediately, from the fact that it is visible this way it is called. It can use from the other computer which is connected to network similar to the usual file server, as the shared disk. Because from first it is built in, introduction and addition to the system being easy, also joint ownership of the data from the group of servers of the type which differs can the file system and network communication facility do easily. When it becomes the high-class machine, there are also some which had the plural disks, had RAID function and hot swap function.

NAT

Reading: Nut
Full spelling: Network Address Translation
Field:
Network technology > TCP/IP > NAT

At the enterprise and the like which is connected to Internet, one global the technology which shares IP address with the plural computers. Only while organizing it is actualized the IP address which passes (local address) with, address on Internet (global address) by converting transparently mutually. But recently to become insufficient tend global IP address can be saved, there is restriction such that the application software of part stops operating normally.

NAV Norton AntiVirus

Alias:
No ton anti virus
Field:
Security > virus/worm > NAV

Symantec ([shimantetsuku]) to be the basic product of the corporation, one of the most general virus measure software. Since being born in 1990, the person who exceeds 1,000,000,000 in the world uses this. Early edition is something which gathers and summarizes software to that, the Central Point Anti-Virus which the [shimantetsuku] corporation purchases in 1994 (CPAV) from it is mainly taken. CPAV was integrated even in the virus measure tool of the Microsoft corporation.

As for NAV widely it is accepted between the computer & the fan of part, operation is slow in spite, when, there is an effect unless, there is also the negative kind of appraisal whose un installation is difficult. There is various opinions e.g., that contrast, NAV the specialist who places in superior ranking in field of virus measure it is

NAVITIME Nabi time

Field:
Portable telephone > service > NAVITIME
IT and society > GPS/GIS > NAVITIME

Nabi time Japan offers, route search movement navigation service. There is a Web sight for the personal computer and information service for the portable telephone. NTT [dokomo], the software bank, with Will COM with the name “of NAVITIME”, with KDDI/Okinawa cellular au the service which is similar to the Nabi time with the name “of EZ Nabi walk” “EZ@ map” “EZ suicide seat Nabi” and so on is offered. As for utilization of the Nabi time PC sight the user register with carrying is needed excluding part free service.

The private car, the railroad, combining the aircraft, the bus, the taxi and walking etc with option, you search the optimum route to the optional position from the Japanese domestic optional position, if the GPS correspondence portable telephone navigation you do from starting to arrival, “total Nabi” major feature. Also peripheral service such as station time table and search around the landmark and transportation operation circumstance and parking zone full empty information has been complete.