Compaq 1610 Reference Manual page 52

chapter
Your C-Series handheld PC comes equipped with a versatile
feature that allows you to connect credit-card sized options called
PC Cards (PCMCIA Cards). PC Cards expand the capability of
your handheld PC by providing modem, network, ATA flash
storage, VGA, and other capabilities. And because they are small
and light-weight, PC Cards are mobile.
There are three types of PC Cards, each of which vary in
thickness (Type I, Type II, and Type III). The PC Card slot in
your device accommodates a Type I or Type II PC Card. In
addition, the handheld PC supports 16-bit PC Cards.
Some PC Cards consume large amounts of power. When a PC
Card drains too much power from the batteries, the C-Series
automatically shuts down to protect against data loss.
To avoid draining the batteries when using a PC Card with your
C-Series, do the following:
Connect the handheld PC to external power.
Use lower-voltage PC Cards, which consume less power.
For a list of PC Cards that have been tested and approved for use
with the C-Series, visit the C-Series web site at
www.compaq.com/products/handhelds.
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