Glossary terms beginning with P

PABX

Also known as: Private Automatic Branch Exchange Private Automatic Branch Exchange (PABX) is the type of telephone exchange often found in offices and companies, which have automated switchboards and possibly hundreds of extensions. A PABX performs…

Packet

Packet is the name for a small block of data that is communicated in packet switched systems, such as is used on the Internet and in the more recent mobile communication networks. Although it may appear…

Packet Switching

Packet Switching is a method of transmitting information (voice, video or other streamed data) over a communications system, without dedicating an exclusive channel to the subscriber. The information is broken down into small blocks or packets,…

Paging Channel

Also known as: PCH Paging Channel (PCH) is a downlink channel (base to mobile) used by the BS (Base Station) to page or alert a MS (Mobile Station) that there is an incoming call or text…

Passive matrix

Passive matrix is the cheapest type of LCD display. It consists of a basicliquid crystaldisplay with pixels divided into a matrix of rows and columns; only one row and one column receive electric current at any…

PAYG

A prepaid mobile phone (also commonly referred to as pay-as-you-go or prepaid wireless) is a Mobile phone for which service is purchased in advance of use. By purchasing credit to use on a mobile phone network,…

PBX

Also known as: Private Branch Exchange Private Branch Exchange (PBX) is a privately owned and operated telephone exchange system of the type usually found in offices and companies. Such exchanges can switch calls between the extensions…

PC Card

PC Card is the current term for the accessory previously known as a PCMCIA Card (Personal Computer Memory Card International Association). PC Cards are small credit card sized accessories that fit into personal computers such as…

PCH

Also known as: Paging Channel Paging Channel (PCH) is a downlink channel (base to mobile) used by the BS (Base Station) to page or alert a MS (Mobile Station) that there is an incoming call or…

PCMCIA Card

Also known as: Personal Computer Memory Card International Association PCMCIA Card (Personal Computer Memory Card International Association) is the old term for a PC Card, which are small credit card sized accessories that fit into personal…

PDA

Also known as: Personal Digital Assistant, PIM, Personal Information Manager PDA (Personal Digital Assistant) is a small, mobile, handheld computing device capable of transmitting data, and which can be used in personal or business activities as…

PDA cell phone

PDA-cell phones are personal digital assistants with the added facility of a built-in mobile phone, and they started to appear towards the end of 2001. Along with other wireless data communications equipment, there is a potential…

Personal Computer Memory Card International Association

Also known as: PCMCIA Card PCMCIA Card (Personal Computer Memory Card International Association) is the old term for a PC Card, which are small credit card sized accessories that fit into personal computers such as notebooks…

Personal Digital Assistant

Also known as: PDA, PIM, Personal Information Manager PDA (Personal Digital Assistant) is a small, mobile, handheld computing device capable of transmitting data, and which can be used in personal or business activities as a personal…

Personal Information Manager

Also known as: Personal Digital Assistant, PDA, PIM PDA (Personal Digital Assistant) is a small, mobile, handheld computing device capable of transmitting data, and which can be used in personal or business activities as a personal…

PIM

Also known as: Personal Digital Assistant, PDA, Personal Information Manager PDA (Personal Digital Assistant) is a small, mobile, handheld computing device capable of transmitting data, and which can be used in personal or business activities as…

Pin Unblocking Key

Also known as: PUK, PUK1, PUK2 The PUK (Pin Unblocking Key) is used to unblock a SIM. As a security feature to avoid brute force attacks on SIMs, a SIM is blocked after three incorrect password…

Pixel

Pixel is the smallest picture element found on a display. In the colour screens of televisions, computers and mobile devices, there will be an array of evenly spaced pixels covering the whole of the screen area….

PNG

Also known as: Portable Network Graphics PNG (Portable Network Graphic) is an image format standard for storing graphic data. It supercedes JPEG and GIF, andimproves onfeatures of both. PNG supports a variable colour depth of anywhere…

Polyphonic Ringtone

Polyphonic Ringtone is the sound made by a phone when it receives a call, and polyphony opens up almost limitless possibilities for how the phone may sound. A polyphonic ringtone means that the phone can play…

Polyphonic ringtones

A polyphonic ringtone consists, in comparison to a monophonic ringtone, of sounds from different pitches. With polyphonic ringtones much more realistic sounds can be produced, because there are more tones available. Information about the amount…

POP3

Also known as: Post Office Protocol 3 POP3 (Post Office Protocol 3) is a standard protocol used by a client to receive e-mail that has been sent to them over the Internet. The protocol is used…

Portable Network Graphics

Also known as: PNG PNG (Portable Network Graphic) is an image format standard for storing graphic data. It supercedes JPEG and GIF, andimproves onfeatures of both. PNG supports a variable colour depth of anywhere between 8…

Post Office Protocol 3

Also known as: POP3 POP3 (Post Office Protocol 3) is a standard protocol used by a client to receive e-mail that has been sent to them over the Internet. The protocol is used to retrieve the…

Power Cell

Also known as: Battery Battery is the normal power source used to operate a mobile phone. The battery capacity is usually measured in units of mAh (milliamps x hours), which is the electric current output that…

Predictive Text Input

Also known as: T9 T9 (Predictive Text Input) is a system designed by Tegic Communications Inc. (a subsidiary of America Online Inc.) to make text message writing faster and easier. Also called Text on 9 Keys,…

Predictive Text Input (T9 Ezi iTap)

T9 is the abbreviation of Text on 9 Keys and is a function on mobile phones. The T9 Text Input-function makes it more simpel and easier to type texts. T9 namely recognizes the most routine…

Predictive Text Messaging

Predictive Text Messaging is a type of software application that makes text messaging easier. Just one key press is needed for each letter, rather than the multi-tapping otherwise required, which makes the writing of SMS …

Private Automatic Branch Exchange

Also known as: PABX Private Automatic Branch Exchange (PABX) is the type of telephone exchange often found in offices and companies, which have automated switchboards and possibly hundreds of extensions. A PABX performs all the switching…

Private Branch Exchange

Also known as: PBX Private Branch Exchange (PBX) is a privately owned and operated telephone exchange system of the type usually found in offices and companies. Such exchanges can switch calls between the extensions within the…

PUK

Also known as: Pin Unblocking Key, PUK1, PUK2 The PUK (Pin Unblocking Key) is used to unblock a SIM. As a security feature to avoid brute force attacks on SIMs, a SIM is blocked after three…

PUK1

Also known as: PUK, Pin Unblocking Key, PUK2 The PUK (Pin Unblocking Key) is used to unblock a SIM. As a security feature to avoid brute force attacks on SIMs, a SIM is blocked after three…

PUK2

Also known as: PUK, Pin Unblocking Key, PUK1 The PUK (Pin Unblocking Key) is used to unblock a SIM. As a security feature to avoid brute force attacks on SIMs, a SIM is blocked after three…