A typical PC keyboard has only 101 keys (104 keys on a Windows keyboard), in sharp contrast to the 122 keys that were standard in the conventional midrange environment. For users of traditional non-programmable terminals who were used to the full set of 122 keys, moving to a PC or Thin Client can mean a big loss in production. Up to 36 new key combinations are required to perform tasks previously performed with single keystrokes on the traditional 122 key keyboards.
Although industry-standard PC/5250 122-key keyboards work well enough with a PC or Thin Client running embedded 5250 emulation software, they are not fully functional when the user attaches to Windows Terminal Server or Citrix. The keyboard, in these instances, functions only as a regular PC keyboard; typically the upper function keys do not work. The BOSaNOVA 122-key keyboard, however, works perfectly in both PC and thin client environments.