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PCS
Reading: Tweet sea s
Full spelling: Personal Communication Services
Field:
Portable telephone > communication method > PCS
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The digital portable telephone service which is offered in America and Canada etc. The band the narrow band PCS 900 - 941MHz and are 2 types of the wide band PCS 1850 - 1990MHz, but the 1900MHz band general. As for concrete technical specification it is designed in such a way that it can choose each company, the system of TDMA, CDMA and GSM etc is adopted. Channel bandwidth in the 1900MHz band are 2 types of 5MHz and 15MHz. In addition, recently the portable telephone service with PCS even in Korea is started. The occasion where in 1994 you could bet on auction the band of PCS in America, the applicant rushing in, successful bid price soared, became topic.
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PC-UNIX
Reading: [pishiyunitsukusu]
Field:
OS > UNIX > PC-UNIX
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| The general term of the interchangeability OS which operates with the personal computer. Many operate with the PC/AT compatible machine which loads x86 system CPU. Attention has focused at enterprise on PC-UNIX as a server use until recently, it could utilize UNIX with only the office computer and the computer for expensive business of the work station and the like, but, recently attendant upon the efficiency improvement of the personal computer. In addition, the power which propels as the choices of OS which is substituted to Windows, is having big power. As PC-UNIX of commercial business, UnixWare of SCO and there is Solaris for of the Sun Microsystems corporation x86 and the like. The free software where development is advanced by the volunteer of the entire world exists in is Linux and FreeBSD and NetBSD etc. The person who calls only OS of free it operates with the personal computer PC-UNIX it is. |
PC-VAN
Reading: Tweet the sea van
Field:
Communication service > public network > information service > PC-VAN |
The recording type which raises the bulk compressibility of the data which records to MD, record
The personal computer communication service which NEC manages. At one time, you were proud of the number of Japanese maximum members, but in make a foolish mistake, it reached 2 rank. The bulletin board system and E-mail, dividing every theme, being serviced being offered of SIG and the like and exchanges opinion. The GUI based private communication software navigator is distributed from 1994, convenience has improved. BIGLOBE which is the NEC Internet service provider business it is integrated in 1996, it has become portion of the comprehensive information communication service which includes Internet connection.
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C/XT
Reading: Tweet the sea x tea
Full spelling: Personal Computer/eXtended Technology
Field:
Personal computer > product > PC/XT
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The personal computer which the IBM corporation sells in 1983 March. 8088 of the Intel corporations was loaded, the hard disk was built in for the first time. Mounting the memory of 640kB on the motherboard this type is first. release was done because of PC/XT.
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PC engine <PC Engine>
Reading: Tweet the sea engine
Field:
Multimedia > game > game machine for home > PC engine |
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The game machine for home which NEC foam/home electronics sells in 1987. Graphics and sound it was announced to the time when the Nintendo Co.is proud of preponderant share, compared to the high performance as the game machine for home of the next generation.
The game software of the PC engine at the beginning was supplied with the ROM cartridge of IC card type, but external CD-ROM drive for the PC engine was sold afterwards. This as for the system with the game system for home which uses the world first CD-ROM, as for many of the conception those whose foresight characteristic is high to be many, such as carrying of the game and the saving data which utilize the bulk data of the optical disk, simultaneous play with the group of people 3 or more and the conception which is called there are some which are close to the specification conception of the present play station and the like.
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