The 2922-1 Terminal Control Unit (RPQ 810563) has the same instruction set architecture as the Model 20.
The printer uses a print chain and provides a page width of 132 characters using fanfold paper.
One IBM 1442 Model 5 card punch could be attached to an adapter in the Terminal Control Unit.
The 2922 has no disk; however, magnetic core has the property of retaining programs loaded from cards through power on-off cycles.
In 1974 Computerworld reported that the State of Mississippi was using six 2922 terminals to communicate with a central System/370 Model 145.