Networking
The network orientation of the systems, together with the ATR functionality, made it easy and practicable to boot and run diskless machines using another machine's OS. In principle, as many machines could be booted from one host as it could cope with; in practice, four diskless machines from one host was about the limit. Provided the correct machine-specific software was installed on the host (again, very easy), any type of machine could be booted from any other (one complication being that a DN10000 could only be booted from another DN10000 or a 68K-based system which had "compexe" executables installed).
Some systems could have the graphics card removed so that they could be used as a servers; in such a case the keyboard and mouse were automatically ignored, and the system accessed either across the network, or via a dumb terminal plugged into the machine's serial port. Such a system was designated "DSP" instead of "DN".
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