Epson 20 - Manual (Page 191)

Keyboard
Detachable, three positions, 101 sculpted keys
Layout 58-key QWERTY main keyboard; 17-key
numeric/cursor pad; 10 cursor keys; 16
function keys (user-definable)
Function keys Four levels (normal, shift, control, alternate);
user-definable
Environmental Requirements
Temperature
Humidity
Operating range: 41° to 104° F (5° to 35° C)
Storage range: 22° to 158° F (-20° to 60° C)
Operating range: 20% to 80%, non-condensing
Storage range: 20% to 90%, non-condensing
Physical Characteristics
Width
Depth
Height
Weight (without
keyboard)
19.6 inches (498.5 mm)
17.4 inches (442.3 mm)
6.7 inches (170.6 mm)
Single diskette drive model: 29.9 lb (13.6 kg)
40MB hard disk drive model: 33.9 lb (15.4 kg)
90MB hard disk drive model: 34.1 lb (15.5 kg)
Specifications F-3