White paper
Sony Ericsson P1
82
May 2007
OS
Operating System, such as Symbian OS, Linux,
Microsoft Windows.
OTA
Over-the Air Configuration. To provide settings for
the phone by way of sending a message, SMS,
over the network to the phone. This reduces the
need for the user to configure the phone manually.
PC
Personal Computer.
PCS
Personal Communications Services, often used to
describe GSM1900 networks.
PDA
Personal Digital Assistant. A handheld computer
having functions such as address book, calendar
etc.
Portable Document Format. A format created by
Adobe for storing and distributing documents.
PDP
Packet Data Protocol.
Personal Java™
An edition of Java™ appropriate for mobile devices
such as PDAs.
Phone book
A memory in the SIM card where phone numbers
can be stored and accessed by name or position.
PIM
Personal Information Management. Generic term
for applications such as Contacts, Calendar, Tasks
etc.
PKI
Public Key Infrastructure.
PNG
Portable Network Graphics. Format for storing
images on file with data compression but without
lowering of quality (loss of information).
Polyphonic
'Many sounds'. The maximum number of notes an
instrument can play at the same time, commonly
16 in MIDI devices.
POP3
Post Office Protocol. Used to collect email from a
mail server.
PSTN
Public Switched Telephone Network, such as,
ordinary analogue phone line for speech and/or
computer modem.
PTD
Personal Trusted Device. Concept in MeT.
QCIF
Quarter Common Intermediate Format. A video
format size of 176 x 144 lines.
QQVGA
Quarter Quarter VGA, 160 x 120 pixels.
QVGA
Quarter VGA size, typically refers to a portrait
oriented screen 240 pixels wide x 320 pixels high.
RADIUS
Remote Access Dial-In Service. Facility at the ISP
or corporation to manage remote data
connections.
RAS
Remote Access Service.
