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PROM
Reading: Tweet the ROM
Full spelling: Programmable Read Only Memory
Field:
Semiconductor > memory > PROM |
Making use of the device where the user is special just one time the read-only memory which it tries to be able to write information . ROM usually records information when producing, but as for PROM as for information it is not written when producing, using the device, the user ROM lighter/writer, it does record. When one time record is done, it cannot modify the data which was written in the same way as usual ROM and it cannot delete. When those which and repeatedly it tries to be able to eliminate contents to be able to write in are called EPROM, include this to PROM it is.
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PR value
Reading: PR [chi]
Full spelling: P-Rating
Field:
Microprocessor > performance evaluation > PR value
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The index which displays the efficiency of the x86 interchangeable microprocessor of the AMD corporation and the Cyrix corporation etc. With K5 of the AMD corporation and 6x86 of the Cyrix corporation, clock frequency of the Pentium processor of the same efficiency is displayed, 6x86MX of the Cyrix corporation and with M II, clock frequency of the Pentium II processor of the same efficiency is displayed. For example, the K5 processor of PR133 is the same efficiency as the Pentium processor of 133MHz drive. PR value after K5/6x86 was not used for a while, but being 2001 October, the AMD corporation with Athlon XP/Athlon MP, Athlon of the same company revival (“model number”) could point to PR value in fact in the form which it contrasts with Pentium 4 of the /Intel corporation.
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PS <Play station>
Alias:
PlayStation
Field:
Multimedia > game > game machine for home > PS
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| The game machine for home which the SONY computer entertainment developed. 32 bit processor MIPS R3000 custom of RISC system is adopted to CPU, custom LSI for multimedia processing is loaded in large quantities. processing efficiency of especially 3D graphics is superior. The powerful game software company enters, gathers the software many and is also a callous, shipping 40,000,000 unit or more with entire world sum totals. As a game machine for home most it has spread. |
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PS <PostScript>
Alias:
Postscript
Field:
Software > type > DTP > PS
Imaging > printer > PS
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Letter and the figure and the picture and those attributes and it is possible to appoint the information of position inside the page. It is possible in letter to appoint the size and the letter decoration etc of the font and letter, as for the figure other than the straight line and circle, it has become possible to express free-form curve.
As for letter and the figure, because it is expressed, the vector data which utilizes Bezier curve (the data format which consists of the parameter of equation of the curved line which ties those with coordinate of the principal point in the figure) as fine output with largest resolution of the output device has become possible.
The first version which presently is called Level 1 appears in 1985, the Level 2 which corresponds to 2 byte language such as color printing and Japanese, the Level 3 which adds the gradual conversion of corresponding to Internet and mounted level and the correspondence etc to PDF type is announced to 1996 to 1990. |
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PS2 <Play station 2>
Alias:
[puresute] 2, PlayStation 2
Field:
Multimedia > game > game machine for home > PS2 |
| It was sold on 2000 March 4th, the game machine for home of the SONY computer entertainment. It hits against the successor aircraft of PlayStation of the same company.
It is said that we load custom LSI in large quantities, with processing efficiency exceed the graphic work station of marketing. Processing efficiency of especially 3D graphics is superior.
Adopting of 128 bits which were developed with Toshiba jointly to CPU. It operates at clock frequency, 300MHz as for floating point arithmetic efficiency as for 6.2GFLOPS and 3 dimensional graphic coordinate operational efficiency per second reaches to 66,000,000 polygon. The animated picture playback function due to MPEG-2 is built in.
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