Dell Inspiron 2500 - Manual (Page 78)

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Audio
Audio controller AC97 link audio
Stereo conversion 16-bit (analog-to-digital and digital-to-
analog)
Interfaces:
Internal PCI bus/AC 97
External stereo (line-in), microphone,
headphones/speaker (line-out)
Display
Type 128-bit hardware-accelerated video support
Response time (typical) 50 ms
Operating angle 0 ° (closed) to 180 °
Dot pitch 0.20 mm
Panel (typical)
Backlight 1.3 W
3.4 W using battery; 4.9 W using AC
adapter
Controls brightness can be controlled through key
combinations
Keyboard
Number of keys 87 (U.S., Canada, and locations that use
traditional Chinese); 88 (Europe);
90 (Japan)
Key travel 2.7 ± 0.3 to 0.4 mm (0.11 ± 0.016 inch)
Key spacing 19.05 ± 0.3 mm (0.75 inch ± 0.012 inch)
Layout QWERTY/AZERTY/Kanji
Touch Pad
Interface PS/2 compatible
X/Y position resolution
(graphicstable mode)
240 cpi