| Subject | English | Estonian |
| IT | key perforator | sõrmisperforaator (perfolindi, perfokaartide jaoks) |
| IT | key perforator | klahvperforaator |
| IT | keyboard perforator | sõrmisperforaator (perfolindi, perfokaartide jaoks) |
| IT | keyboard perforator | klahvperforaator |
| IT | punch tape perforator | lindimulgusti |
| IT | punch tape perforator | lindiperforaator |
| IT | punched tape perforator | lindimulgusti |
| IT | punched tape perforator | lindiperforaator |