Power-On Self Test is a special set of ROM routines that run whenever a PC is booted. The power-on self test (POST) is designed to test whether system components are functioning properly before...

Public Switched Telephone Network, also known as PSTN, is the public telephone network managed by the local telco and long-distance carriers. The Public Switched Telephone Network (PSTN) consists of...

Polyvinyl Chloride cabling, or simply PVC, is a grade of network cabling that uses polyvinyl chloride (PVC) plastic for its outer protective insulating jacket. Polyvinyl chloride cabling is cheap and...

Plenum Cabling, also known as CMP cabling, is a grade of cabling that is resistant to combustion and is used for horizontal cable runs in building plenums and vertical rises such as elevator shafts....

Pulse code modulation (PCM) devices receive analog signals with continually varying voltages and quantize these signals into discrete voltages sampled at regular time intervals, typically 8000 times...

Public Key Infrastructure, also known as PKI, is a set of services that support the use of public-key cryptography in a corporate or public setting. A public key infrastructure (PKI) enables key...