RD Glossary
P
- PC Card
- A credit card sized device that provides extended memory, modems, connectivity to external devices, and, of course, wireless network capabilities to small computer devices, such as laptops and PDAs. Many PC Cards are available that implement Bluetooth and 802.11 technologies.
- PDA (personal digital assistant)
- A small device that people can use to store contact information, schedules, and to-do lists. Some PDAs run software programs, such as email clients and web browsers.
- point-to-multipoint system
- A system whereby communications is directly from one user to several others.
- point-to-point system
- A system whereby communications is directly from one user to another.
- PSK (phase shift-keying)
- A modulation process that makes slight changes to the phase of the carrier signal in order to represent information in a way that’s suitable for propagation through the air.
- public wireless LAN
- A type of wireless LAN, often referred to as a hotspot, that anyone having a properly configured computer device can access.
RD Glossary by Run Digital
