Atari PC Owner's Manual page 67

Keyboard
Features IBM PC AT layout; IBM PC XT™ protocol compatible;
84 keys including 56 typewriter keys, 10 function
keys. and 18 keypad keys
Dimensions Maximum height: 1.5 in. (3. 8 cm)
Width: 17.75 in. (45 cm)
Depth: 7.75 in. (19.5 cm)
Weight 3.5 lb. (1.6 kg)
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