Tag
arpanet
- Aug 7, 2026 NCP and the Limits That Forced TCP/IP How the ARPANET host-to-host protocol split messages into connections, why its addressing and flow control could not span multiple networks, and what TCP added to replace it. computing history
- Mar 2, 2026 ARPANET IMPs and the 1822 Host Interface How the Interface Message Processor kept switching separate from host software, what the 32-bit leader and the RFNM handshake enforced, and why one message in flight per link was enough. computing history