The COCKROACH TURBO-ROM is an enhanced Kernel ROM which way be installed in place of the original Kernal in the Commodore 64, 128 or SX-64.

In order to provide these enhancements, some extra roora was required within the ROM (Read Only Memory). The easiest way to make some extra room was to leave out some of the existing code. The decision was made to leave out all of the cassette code and all of the RS232 code. This causes no problem in practice because the original Kernal is also present within our TURBO-ROM and accessible simply by flicking a switch.

Unlike many fast load systems, the COCKROACH TURBO-ROM will function correctly with additional serial devices e.g. printer or second drive with a different device number.