+.B aed
+AED 512 color graphics terminal.
+.TP
+.BR bitgraph\ or\ bg
+BBN bitgraph graphics terminal.
+.TP
+.B imagen\ or\ ip
+Imagen laser printer (default 240 dots-per-inch resolution).
+.TP
+.B crt
+Any crt terminal capable of running
+.IR vi (1).
+.TP
+.B dumb
+Dumb terminals without cursor addressing or line printers.
+.TP
+.B vt125
+DEC vt125 terminal.
+.TP
+.BR hp2648\ or\ hp\ or\ hp8
+Hewlett Packard 2648 graphics terminal.
+.TP