| Subject | English | Czech |
| comp., MS | Internetwork Packet Exchange | protokol IPX (A network protocol native to NetWare that controls addressing and routing of packets within and between LANs. IPX does not guarantee that a message will be complete (no lost packets)) |
| comp., MS | Internetwork Packet Exchange/Sequenced Packet Exchange | IPX/SPX (Transport protocols used in Novell NetWare networks, which together correspond to the combination of TCP and IP in the TCP/IP protocol suite. Windows implements IPX through NWLink) |