Under normal circumstances, we would be able to see the new versions of all the ROMs inside the MOS 3.50 system ROM but the special circumstances of this machine mean that some of them are effectively disabled and replaced with ROMs on the raised board.

So, View and Viewsheet disappear, to be replaced by CPFS and EXMON II.

Also showing up in the sockets normally reserved for cartridges are the ROMs on the other board: BASIC Editor, Wordwise Plus II, and Master ROM.

CPFS, in case you were wondering, stands for Co-Processor Filing System and was brought out by Essential Software for the Master 512 to make use of the 512KB of RAM on the co-processor board as a RAM disc and printer buffer when the 80186 is not running.