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FP method <Function point method>

Reading: [ehupihou]
Full spelling: function point method
Field:
IT industry > system development > FP method

On the basis of a functional quantity which the software has, the technique which measures the scale of that software. It is used the occasion where development cost and man-hour etc of the software are computed. It is the system A.J.Albrecht of the IBM corporation devising in 1979.

Before FP method is developed, the number of lines of the source code of the software (SLOC; Source Lines of Code) and file size and the like it was used as the scale of scale of the software, but with appearance of FP method more objective than in the past it reached the point where it can calculate the scale of the software quantitatively.

It extracts, classifies every function such as input/output, “the function” (function) defines each one some kind of processing is done inside the software at the time of the calculation of FP.

FQDN <Complete decoration domain name>

Reading: F queue/cue D n
Full spelling: Fully Qualified Domain Name
Field:
Internet > domain > FQDN

With respect to TCP/IP network of Internet and Intranet etc, without abbreviating domain name [sabudomein] name host name it is the description type which entirely is appointed. For example, but as for FQDN, because as for “e-words.ne.jp” host name is abbreviated, it is not FQDN.

FR <Frame relay>

Alias:
frame relay
Field:
Communication service > private line > FR

One of packet transmission systems. Dividing into the small unit which is called the data the packet, sending and receiving it does. Because reliability of transmission expedient of the optical fiber and the like improves, those which simplify the error correction procedure of the standard, X.25 which was used until recently in packet transmission assure acceleration. Data transmission service above 1.5Mbps which utilizes frame relay it is offered by each company.

FRAM <FeRAM>

Alias:
Ferroelectric memory
Field:
Semiconductor > memory > RAM > FRAM

One kind of non- volatilization memory which utilizes the ferroelectric.

The substance where stores electric charge the ferroelectric, spontaneous polarization inside the substance (when electric plus and minus has occurred inside the substance) it changes direction freely by adding voltage, does not apply voltage and the dielectric which also the [te] can make that polarization direction continue (with polarization, does not pass through direct current) it is thing, the non- volatilization memory which designates this as the storage cell is FeRAM.

As for FeRAM structure and the like having been similar to DRAM, the high speed which reaches 10 times that or more flash memory reading and writing is possible. In addition, it is called on markedly flash memory, in comparison with EEPROM regarding the aspect of reliability. As for FeRAM also “FRAM” is called, but this is registered trade mark of the Ramtron corporation.

FreeBSD

Reading: Free B s D
Field:
OS > UNIX > FreeBSD

Development started Nate Williams and Rod Grimes, Jordan K. with 3 people Hubbard in 1993, the UNIX interchangeability OS for the PC/AT compatible machine. Presently it is transplanted even in the platform other than the PC/AT compatible machine.

FreeBSD is open with the source code being gratuitous as the free software, development is advanced by the hand of the programmer of the volunteer of the entire world.

The first version of FreeBSD the University of California [bakuri] school (UCB) was developed OS, Net/2 which derives from 4.3BSD in the base, but because UNIX System Laboratories (USL) the cord/code which has copyright is included in the portion of Net/2, it moved to those which designate 4.4BSD-Lite as the base.