Burcon CP/M 2.2 for the Altair 8800 The file "cpm48k.dsk" and "cpm56k.dsk" are bootable Burcon CP/M 2.2 disks sized for 48K and 56K of RAM, respectively. Run MOVCPM to size for a different amount of RAM. See the "ReadMe.pdf" file up two levels in the "CPM" folder for more information about Burcon CP/M.