39
nugget
A
Specifications
B-11
B
High Memory Area (HMA)
The high memory area (HMA) is a 64K block of memory, starting 16 bytes
below the 1024K mark, and is the first 64K of extended memory.
Since HMA can only hold one item, the first program that requests HMA uses
it, regardless of the size of the program. The DOS=HIGH statement in
CONFIG.SYS loads MS-DOS into high memory.
User Flash Memory
User flash memory contains the 512K ROM drive C. It is mapped to 800000H.
Drive C is similar to the hard drive C on your PC and contains the MS-DOS
startup files, CONFIG.SYS, and AUTOEXEC.BAT.
Since drive C is a ROM drive that resides in flash memory, you cannot write
files to this drive as you would on your PC. You must use the Auto-Loader or
MakeDisk and PutDisk to modify the startup files or change other files on
drive C.
Application Flash Memory
Application flash memory is the 2MB ROM drive D. It is mapped to C00000H.
DOS files and utilities are stored on drive D.
Summary of Contents for Janus 2050
Page 1: ...P N 065716 001 User s Manual JANUS 2050 Vehicle MountComputer 4MB ...
Page 2: ...P N 065716 001 User s Manual JANUS 2050 Vehicle MountComputer 4MB ...
Page 21: ......
Page 22: ...Getting Started 1 ...
Page 23: ......
Page 40: ...Operating the JANUS 2050 2 ...
Page 41: ......
Page 64: ...Using the JANUS 2050 Software 3 ...
Page 65: ......
Page 96: ...Configuring the JANUS 2050 4 ...
Page 97: ......
Page 111: ...39 39 nugget nugget A A ...
Page 112: ...Using PC Cards 5 ...
Page 113: ......
Page 132: ...Communicating With the JANUS 2050 6 ...
Page 133: ......
Page 164: ...Working With IRL 7 ...
Page 165: ......
Page 183: ......
Page 184: ...code 39 nugget helcond Troubleshooting 8 ...
Page 185: ......
Page 210: ...Command Reference 9 ...
Page 211: ......
Page 219: ......
Page 220: ...Configuration Commands 10 ...
Page 221: ......
Page 316: ...Advanced Operations 11 ...
Page 317: ......
Page 323: ...39 39 nugget nugget A A ...
Page 324: ...Configuration and Full ASCII Charts A ...
Page 325: ......
Page 353: ...39 39 nugget nugget A A ...
Page 354: ...Specifications B ...
Page 355: ......
Page 365: ...39 nugget A ...
Page 366: ...Software Utility Reference C ...
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Page 381: ...39 nugget A ...
Page 382: ...Glossary G ...
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Page 406: ...Index I ...
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