Short for Programmed Input/Output, a method of transferring data between two devices that uses the computer’s main processor as part of the data path. ATA uses PIO and defines the speed of the data transfer in terms of the PIO mode implemented, as shown below:
PIO Mode Data Transfer Rate (MBps) Standard
0 3.3 ATA
1 5.2 ATA
2 8.3 ATA
3 11.1 ATA-2
4 16.6 ATA-2
Acronym for picture-in-picture, PIP is a feature on some televisions and most HDTV sets that allows you to see a second program inside a small window on your television, allowing you to watch two programs at once.
- PIX Firewall
Short for Private Internet Exchange Firewall, a firewall protection technology developed by Cisco Systems.
Short for public key infrastructure, a system of digital certificates, Certificate Authorities, and other registration authorities that verify and authenticate the validity of each party involved in an Internet transaction. PKIs are currently evolving and there is no single PKI nor even a single agreed-upon standard for setting up a PKI. However, nearly everyone agrees […]
One of the most widely used file compression methods. PKZIP was developed by PKWARE, Inc. in 1989 and distributed as shareware. Files that have been compressed using PKWARE are said to be zipped. Decompressing them is called unzipping. The PK stands for Phillip Katz, the author of the programs.
(1) Short for power line communications, the use of the existing utility power grid as the medium to send broadband data communications. In theory, plugging a computer device into an existing power outlet would connect the user to the Internet by tapping into already established national and global power grid networks. Power grids typically transmit […]