With the release of its 16-bit architecture, Psions consumer and industrial computer designs diverged. The Psion HC was the industrial counterpart of the consumer-oriented Series 3. The HC retained the vertical design and alphabetic keyboard of the Organiser II computers, while using the same 3.84MHz NEC V30H processor as the Series 3. The screen resolution was 160x80 pixels. Three models were available: the HC100, HC110 and HC120, with 128KB, 256KB or 512KB of RAM.The HC was designed to be used with bespoke software packages, and lacked many of the user-friendly elements of the Series 3. It replaced the Series 3s built-in graphical software with a simple command line, and thus lacked an editor for the OPL language. It could run OPL programs, but not those which used GUI elements like windows, dialogs and menus. The basic graphical facilities were offered, but this incompatibility with the Series 3, and the industrial environment that HCs were sold into, meant that little or no entertainment software was written for them.