proprietary protocol
communications protocol not documented by a publicly available standard
Serial Digital Video Out
proprietary Intel technology to add additional video signalling interfaces using a PCIe connector
Microsoft Notification Protocol
instant messaging protocol by Microsoft
M-PHY
high-speed physical layer standard for mobile devices
Skype protocol
app's proprietary Voice Over IP network
Apple Display Connector
proprietary modification of the DVI connector
Port Aggregation Protocol
proprietary link aggegration protocol
OSCAR protocol
instant messaging and presence information protocol
High-Definition Multimedia Interface
proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data