APPENDIX B
Common PEN*KEY 6000 Series Information
PEN*KEY
R
6200/6300 Hand-Held Computer Programmer’s Reference Guide B-29
DOS Device Drivers
Applications
DLLs
INIs
APIs
Additional
Windows
Files
(optional)
Handwriting
Recognition
Pen Windows
Minimal Windows System Files
Windows Drivers
DOS
DOS Drivers
BIOS
Hardware
DOS device drivers tell the operating system about specific PC hardware compoĆ
nents that are not directly supported by BIOS. Device drivers are loaded into
memory at boot time; and they enable peripherals such as CDĆROM drive or
memory above 1 MB. The PEN*KEY 6000 Series Computer requires at least
one device driver, HIMEM.SYS, to control access to the high memory area
(HMA); the first 64K RAM above the 1ĆMB boundary. Other DOS device drivers
may be loaded, depending on the requirements of attached peripherals. DOS deĆ
vice drivers are always loaded into memory from the CONFIG.SYS file, which is
located in the root directory of the default boot drive.
The default configuration in the PEN*KEY 6000 Series Computer not only inĆ
cludes the device driver HIMEM.SYS (in CONFIG.SYS), but also several drivers
for PC Card services, allowing for the use of flash memory and modem cards in
the PC Card slots. The exact contents of the CONFIG.SYS file depends on the
requirements of the individual application and the peripherals selected.
B. Common PEN*KEY
6000 Series Info.
