PC Keyboard is a module to change the use of the Delete, End (Copy) and Home keys in applications under RISC OS. Historically, the Delete key on RISC OS has always duplicated Backspace, which is different from the behaviour on other platforms. On RISC OS 5 this behaviour is changed to the “PC style” and the OS tries to enforce this, but not all applications follow suit. The module can be used in three ways: It can be used on RISC OS 5 to convert applications fixed in “Acorn style” operation over to the “PC style” used by the OS. Alternatively, on RISC OS 5, it can be used to convert the behaviour of writable icons, and any applications which detect the OS and insist on “PC style” operation, back to “Acorn style” usage. On all other versions of RISC OS, it can be used to convert the behaviour of applications and writable icons to “PC style” operation.