The SC143, ROM module has been designed primarily as an alternative to the ROM module supplied in the Classic II kit.
SC143 includes a 128k byte FLASH memory chip divided into four 32k byte banks. The distribution ROM contains:
| Bank Number | JP2 (A16) | JP1 (A15) | Bank Contents | |
| 0 | 0 | 0 | SCM S3 v1.0 | |
| 1 | 0 | 1 | Blank | |
| 2 | 1 | 0 | Blank | |
| 3 | 1 | 1 | Blank |
The recommended version of the Small Computer Monitor for this board is:
SCM configuration S3
This contains the Small Computer Monitor and BASIC.
Small Computer Central 