For instance, a standard 1987 IBM VGA adapter would be listed as having 262,144 colours, although it can only display up to 256 of them at the same time. Some machines may come with different amounts of memory depending on the exact model or configuration. These have multiple entries in the cross-reference file. If the computer has a specialised chip for producing sound and that chip is known, it's listed here. This cross-reference lists the speed of this tape interface in bauds.
Some computers have multiple text modes.
You'll see multiple entries for these machines in the cross-reference file. Some of them came with a floppy drive as standard. This cross-reference lists the total storage space afforded by the floppy controller of each machine. The controller is assumed to be connected to the maximum possible number of drives and the drives are assumed to be using the largest acceptable media. Numbers are in kilobytes.