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  2. Serial presence detect - Wikipedia

    en.wikipedia.org/wiki/Serial_presence_detect

    In computing, serial presence detect (SPD) is a standardized way to automatically access information about a memory module. Earlier 72-pin SIMMs included five pins that provided five bits of parallel presence detect (PPD) data, but the 168-pin DIMM standard changed to a serial presence detect to encode more information.

  3. Matrix (protocol) - Wikipedia

    en.wikipedia.org/wiki/Matrix_(protocol)

    Matrix (sometimes stylized as [matrix]) is an open standard and communication protocol for real-time communication. [2] It aims to make real-time communication work seamlessly between different service providers, in the way that standard Simple Mail Transfer Protocol email currently does for store-and-forward email service, by allowing users with accounts at one communications service provider ...

  4. Channel state information - Wikipedia

    en.wikipedia.org/wiki/Channel_state_information

    In wireless communications, channel state information (CSI) is the known channel properties of a communication link.This information describes how a signal propagates from the transmitter to the receiver and represents the combined effect of, for example, scattering, fading, and power decay with distance.

  5. Message precedence - Wikipedia

    en.wikipedia.org/wiki/Message_precedence

    The Combined Communications Electronics Board (CCEB), a five-nation joint military communications-electronics organization (consisting of Australia, Canada, New Zealand, the United Kingdom, and the United States), uses the following message precedence designators, in descending order of importance:

  6. ARINC 429 - Wikipedia

    en.wikipedia.org/wiki/ARINC_429

    ARINC 429 is a data transfer standard for aircraft avionics. It uses a self-clocking, self-synchronizing data bus protocol (Tx and Rx are on separate ports). The physical connection wires are twisted pairs carrying balanced differential signaling.

  7. Source–message–channel–receiver model of communication

    en.wikipedia.org/wiki/Source–message–channel...

    The communication skills required for successful communication are different for source and receiver. For the source, this includes the ability to express oneself or to encode the message in an accessible way. [8] Communication starts with a specific purpose and encoding skills are necessary to express this purpose in the form of a message.

  8. Comparison of instant messaging protocols - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_instant...

    Matrix: Matrix.org 2014 Sep [11] [failed verification] Open standard @Username:Hostname (MXID) Yes Yes, mandatory Yes, default for private conversations [12] Yes Yes Yes Yes (using pluggable server-side filtering modules and contact ignoring) Yes Yes Yes Yes Yes No ? Matrix; Mattermost: Mattermost Inc 2015 October 2 Open standard?

  9. Space–time block code - Wikipedia

    en.wikipedia.org/wiki/Space–time_block_code

    Space–time block coding is a technique used in wireless communications to transmit multiple copies of a data stream across a number of antennas and to exploit the various received versions of the data to improve the reliability of data transfer.