| Subject | English | Polish |
| IT | common communications network/common systems interface | wspólna sieć łączności / wspólny system połączeń |
| IT | common communications network/common systems interface | CCN/CSI |
| comp., MS | common gateway interface | CGI (A server-side interface for initiating software services. For example, a set of interfaces that describe how a Web server communicates with software on the same computer. Any software can be a CGI program if it handles input and output according to the CGI standard) |
| IT | Common system interface | wspólny system połączeń |
| IT | Common system interface | CSI |