| ERP erpsystemswordsp Home Page |
|
PDU
Reading: Tweet D u
Full spelling: Protocol Data Unit
Field:
Network technology > PDU
|
The unit of the data which protocol handles. As for PDU of TCP/IP as for PDU “of packet” and Ethernet as for PDU and ATM is.
General PDU control information of the address and the like which is used for the forefront of the data itself, with the protocol (the header) has become the type which is added. As for protocol there are many times when it designs to be layered structure, in that case the data itself of PDU has become PDU which protocol of the superior layer handles. The word [wa] it is “nested” structure.
|
PE_CIH <CIH>
Field:
Security > virus/worm > PE_CIH
|
| The computer virus which is discovered to 1998 June in Taiwan. Windows feasibility type of 95 and Windows 98 you are infected, eliminate the contents of the hard disk, destroying the contents of BIOS which is loaded onto the motherboard, you do not be able to start the computer.
Because as for the execute form of Windows 9x PE it is called type, also “PE_CIH” is called. You are not infected to Windows NT and other OS.
When the file which is infected to the CIH virus is executed, the virus being permanently stationed inside memory, when the system is watched, the other file is executed, you are infected to that file. There is various subspecies, date of specification (“26th of every month” and so on) those which become ill are many
|
PeerCast <Pia cast>
Reading: Pia cast
Field:
Internet > file sharing > PeerCast
|
| The net radio which applies the P2P technology where the user sending and receiving does information directly. It is possible to do Internet broadcast with sound simply without preparing expensive transmission equipment.
Usually, sound and image are transmitted to the many and unspecified persons user making use of Internet, necessary to prepare the circuit the large-scale server and the high speed which respond to the number of concurrent connection users which are supposed it is. Because the system where the listener to whom PeerCast applies P2P technology, receives already transmits the voice data to another listener is taken, it is not necessary for the original transmission person to prepare transmission below.
|
Peerless <Iomega Peerless>
Field:
Storage > removable > Peerless
|
The removable hard disk which utilizes, 2.5 inch hard disk of 10GB/20GB of the Iomega corporation. Being something which designates the hard disk of the IBM corporation make as the base, as for maximum transfer rate 15MB/sec. Inserting HDD unit in the docking device which is calledyou use. As for interface besides the fact that IEEE 1394 and USB 1.1 is prepared, even in SCSI and USB 2.0 and the like there is schedule of correspondence. Unit cost reduction is actualized by being able to give the portion of the drive which is built in to HDD in base station.
|
PEM
Reading: [pemu]
Full spelling: Privacy Enhanced Mail
Field:
Security > network > mail > PEM
|
| While communicating in order for interception alteration not to be possible, the mail which administers encoding, strengthens privacy. The mail text to be encoded by DES which is secret key code, inspect whether or not contents are not altered midway by the digitalized signature which utilizes open key cryptographic RSA, whether or not the transmission person the real thing it is possible to inspect. It is the system of being standardized by IETF which is the group which decides |
