 PEEK and POKE could be used in various BASICs to examine memory content or change it, or even to create an ad hoc machine language program and then run it.System/36 BASIC tends to stay away from these odd conventions; however, the programmer could call for the Alarm (a buzzing sound made by the terminal) via PRINT CHR$(7).BASIC statements are expected to be entered in capital letters, and while the operator can press Cmd2 to use lowercase, the BASIC interpreter will convert non-comment keywords into uppercase.