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Glossary
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OPEX
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Operating expenses before depreciation and amortization of tangible and intangible assets and before amortization of actuarial adjustments in the early retirement plan.
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Optical fiber
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A filament-shaped waveguide made of dielectric materials intended to guide electromagnetic energy in the form of optical waves. It is generally made of a core surrounded by a cladding, then surrounded by a coating.
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OS
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Operating System
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OSA
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Open Services Architecture
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P2P
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Person-to-Person
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PC
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Personal Computer
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PCMCIA
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Personal Computer Memory Card International Association
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PCS
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(1) (Personal Communications Services)
(2) (Personal Conferencing Specification)
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PDA
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Personal Digital Assistant
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PDC
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Personal Digital Cellular
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Peering
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Peering is the arrangement of traffic exchange between Internet service providers (ISPs). Larger ISPs with their own backbone networks agree to allow traffic from other large ISPs in exchange for traffic on their backbones. They also exchange traffic with smaller ISPs so that they can reach regional end points. Essentially, this is how a number of individual network owners put the Internet together.
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PIM
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Personal Information Manager
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PIN
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Personal Identification Number
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PKI
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Public-key infrastructure
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PL
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Party Logistics
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POP
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Point of Presence. The node at which an Internet Service Provider connects a subscriber to the Internet.
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POS
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Point of sale
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Processes
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Business processes are operations that transform the state of an object or a person. This can, for example, be an order placed via the internet. Ordering an object or a service creates a liability for the supplier to deliver, and initiates the transfer of property rights from one entity to another. The electronic handling of processes is likely to speed them up and to introduce new processes in the realisation of the same transaction.
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PRSMS
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PRSMS
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PSP
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Payment service provider
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PSTN
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Public Switched Telephone Network
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Q
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Quarter
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QoS
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Quality Of Service A defined measure of performance in a data communications system. For example, to ensure that realtime voice and video are delivered without annoying blips, a traffic contract is negotiated between the customer and network provider that guarantee a minimum bandwidth along with the maximum delay that can be tolerated in milliseconds.
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