Pc cards – Juniper Systems Allegro DOS Manual User Manual

Page 65

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Memory and Data Storage Page 3-5

PC Cards

The Allegro has a user-accessible PC card slot (PCMCIA 2.0 Type II) that
allows you to add mass data storage to your Allegro with PC cards.

PCMCIA stands for the “Personal Computer Memory Card
International Association.” This association has developed standards for
PC cards. PC cards are about the size of a credit card and come in three
thicknesses or types.

The PC card slot accepts Type I or Type II cards. These cards include
ATA Flash cards, SRAM (Static Random Access Memory), and Compact
Flash cards. All types of cards have a 68 pin connector for attachment to
the Allegro. The cards must be 5 V or 5 V/3 V (PC cards that are 3 V
only are not supported). This is a 16 bit card slot. It is not a “card bus”
slot.

A PC memory card is a solid state, self-contained memory board housed
in a credit card-sized package. These cards behave like hard disks. You
can read from them, write to them, and erase single files from them.
There are several types and brands of cards available.

ATA Flash Cards
ATA Flash cards provide solid state data storage. Power is not required
to maintain the data. Because of this feature, we recommend them over
other types of memory cards. The Allegro accepts cards ranging in size
from 1 M to 100 M.

Formatting ATA Flash Cards
ATA Flash cards come pre-formatted. If you need to format a card, enter
the following command into the Allegro from the DOS prompt: Format
D: /u

Warning: Formatting the ATA Flash card deletes everything previously
stored on the card. For more information on using FORMAT, refer to the MS-
DOS Help.

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