Computing and Telecommunications
- Network tap, a device that monitors data on a computer network
- Telephone tap, a device that monitors phone conversations
- Tap (signal processing)
- test access port (TAP) in JTAG
- TAP (network driver)
- Telelocator Alphanumeric Protocol, a protocol for sending messages to a cellular or pager service
- Test Anything Protocol, a protocol for communication of software unit testing results
- Time-sharing Assembly Program, an application for the SDS 940 computer
- Test Access Port, part of the Joint Test Action Group boundary scan architecture
- TAP, a phreaking magazine published by the Youth International Party
- Transferred Account Procedure, a GSMA Data Record Format
- .TAP files from original C64, VIC-20 and C16 tapes using the Commodore Datasette.
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