| Subject | English | Czech |
| comp., MS | control message | řídicí zpráva (An application-readable message requesting the execution of a specific operation on the client side) |
| comp., MS | Internet Control Message Protocol A required maintenance protocol in the TCP/IP suite that reports errors and allows simple connectivity. ICMP is used by the Ping tool to perform TCP/IP troubleshooting | protokol ICMP (Internet Control Message Protocol) |