Appendix BGlossary of USB Terms
ACK: |
Handshake packet indicating a positive acknowledgement between devices, or a host and device on the Universal Serial Bus. |
Active Device: |
A device that is not in the suspended state and is powered on. |
Asynchronous Data: |
Data that is sent across the Universal Serial Bus without regard to timing requirements; the opposite of isochronous. |
Babble: |
Persistent data on the bus that is not expected by any device or the host. |
Bandwidth: |
The amount of data that can be transmitted over the bus in a given amount of time; this is usually expressed in bits per second (bps). |
Bit: |
A single element of data within the computer (or on the bus) that is either a 1 or a 0 (indicating high voltage or low). There are ... |
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