Editing Apollo/Domain (section)

=={{anchor|DN300|DN330}}Hardware==
An Apollo workstation resembles a modern PC, with a base unit, keyboard, mouse, and screen. Early models are housed in short (about 2&nbsp;ft high) 19" rack cabinets to be set beside a desk or under a table. The DN300 and later DN330 were designed as integrated units with the system and monitor in one unit. These models fit easily on a desk.

Every Apollo system (even standalone) includes at least one network interface. The only original option is the 12&nbsp;Mbit/s Apollo Token Ring (ATR), and then 10&nbsp;Mbit/s [[Ethernet]] was added as an option. It has been stated{{who|date=April 2024}} that the [[IBM]] [[Token Ring]] was an option but this was never available. The ATR is generally the best choice, because it is extremely scalable; the Ethernet of the time has serious performance loss as extra machines are added to the network, but this is not true of ATR, which can easily have over 100 machines on one network. One drawback is that, unlike Ethernet, one machine failure (which could easily happen with a single faulty connector) stops the entire network. For this reason, Apollo provided an optional, but strongly recommended, network cabling system of bypass switches and quick connect boxes which allow machines to be disconnected and moved without problems. Apollo Token Ring networks use 75 ohm [[RG-6U]] coaxial cabling.