LVL BBC Model B
LVL BBC Model B
With the keyboard out of the way, we can see a bit more. The disc interface is provided on a daughterboard marked Computer Village Limited. This is the LVL DOS board, although why it isn't called CVL DOS I don't know. On the right hand side is a ROM expansion board, with sideways RAM and battery backup. Two of the connections from this board go to the switch at the back, with the third connection going to the 7002 via a probe clip, to provide switchable write access to the sideways RAM chips.