Input/output device arrangements for terminals

Claim 1

A data processing work station, a forepart of the work station sloping downwardly towards the front of the work station and carrying a first keyboard (16), a recess extending into the work station below the first keyboard, a second keyboard (18) slidable into and out of said recess between a concealed first position in which the second keyboard is received in the recess underneath the first keyboard and an exposed second position in which the second keyboard is accessible to use by an operator, the front of the second keyboard having a contour so that it lies substantially flush with the front of the work station in the concealed first position, characterized in that the work station is constituted as a self-contained table top telecommunications terminal (10) comprising a bottom moulding (68) and a top moulding (66) interengaging to form a cabinet for electronic circuitry, wherein the bottom moulding carries first guide means (75, 76, 78,) and said second keyboard includes second guide means (42, 60) disposed at each side edge of the second keyboard including rearwardly extending projections (60), said second keyboard including the second guide means being essentially two dimensional in form, the first guide means interengaging with the second guide means along the side edges of the second keyboard to guide movement of the second keyboard between the concealed first position and an exposed second position in which the second keyboard tips under its own weight to a position inclined to the horizontal and the rearwardly extending projections engage the first guide means retain the second keyboard in the second position.