Technical information

CHAPTER 3
Devices and Ports
External Monitors 49
external monitor set to 640 by 480 or 800 by 600, the image on the internal
display is smaller than the screen. For resolution settings larger than 1024 by
768, the image on the external monitor is smaller than the screen.
When the flat panel display and an external video monitor are operating at the
same time, half the video memory is available for each, so the maximum pixel
depth at the largest image sizes is less. These modes and restrictions are
summarized in Table 3-9.
External Monitors 3
The computer has a built-in connector for an external VGA, SVGA, or XGA
monitor or projection device. An adapter, included with the computer, allows
the user to attach a standard Apple video cable. The computer also has an
S-video connector that supplies a video signal for an NTSC or PAL video
monitor or VCR.
An external monitor or projection device connected to the computer can
increase the amount of visible desktop space. This way of using an external
monitor is called dual display to distinguish it from mirror mode, which shows
the same information on both the external display and the built-in display.
Monitors and Picture Sizes 3
With the included adapter, the PowerBook G3 Series 1999 computer can be used
with any Apple monitor, including the AV monitors, the 17-inch and 20-inch
Table 3-9 Flat-panel resolutions and pixel depths
Image size
Pixel
resolution
Pixel depth,
no external
monitor
Pixel depth,
with external
monitor
640 by 480 58 dpi 24 bpp 24 bpp
800 by 600 71 dpi 24 bpp 24 bpp
1024 by 768 91 dpi 24 bpp 16 bpp