ROM-DOS 6.22 User’s Guide ROM-DOS Copyright © 1989 - 1995 by Datalight, Inc. All Rights Reserved Datalight, Inc. assumes no liability for the use or misuse of this software. Liability for any warranties implied or stated is limited to the original purchaser only and to the recording medium (diskette) only, not the information encoded on it. THE SOFTWARE DESCRIBED HEREIN, TOGETHER WITH THIS DOCUMENT, ARE FURNISHED UNDER A LICENSE AGREEMENT AND MAY BE USED OR COPIED ONLY IN ACCORDANCE WITH THE TERMS OF THAT AGREEMENT. Acknowledgement of Trademarks: IBM-PC is a trademark of the IBM Corporation MS-DOS is a trademark of the Microsoft Corporation 307 N. Olympic Ave., Suite 200 Arlington, WA 98223 phone (360) 435-8086 fax (360) 435-0253 Table of Contents ROM-DOS 6.22 User’s Guide .......................................1 An Introduction To ROM-DOS 6.22 ............................9 Organization of This Manual ................................................1 Conventions Used in This Manual .......................................1 Character Notation............................................................................. 1 Simultaneous Keys ............................................................................ 1 Lines Which You Type ..................................................................... 2 Literal Terms ..................................................................................... 2 Representative Terms ........................................................................ 2 Command Line Options..................................................................... 3 <Enter> Keystroke Assumed............................................................. 3 Using ROM-DOS 6.22...................................................5 About DOS and ROM-DOS .................................................7 What is DOS?.................................................................................... 7 What is ROM-DOS? ......................................................................... 7 Files.........................................................................................7 What is a File?................................................................................... 7 Naming Your Files ............................................................................ 8 The File Name ................................................................................... 8 The Extension.................................................................................... 8 Tree-Structured Directory System.....................................11 Naming Subdirectories .................................................................... 12 Moving Around the Tree................................................................. 13 The Path ...............................................................................15 The Drive Specification................................................................... 15 Complete File Identification ...............................................16 Using Wildcard Characters................................................17 The System Prompt .............................................................18 The Command Line ............................................................ 19 Editing the Command Line ..............................................................19 Examples of Command Line Editing ...............................................20 Redirecting Input and Output ........................................... 21 Input Redirection..............................................................................21 Output Redirection...........................................................................22 Batch Files............................................................................ 23 Batch File Names .............................................................................23 Creating a Batch File........................................................................24 Batch File Parameters ......................................................................24 Special Batch Subcommands ...........................................................25 Bypassing AUTOEXEC.BAT Commands.......................................26 File Storage .......................................................................... 26 Basic Terminology...........................................................................27 Computer Memory: RAM and ROM ...............................................27 RAM ................................................................................................27 ROM ................................................................................................28 Disks and Disk Drives......................................................................28 Diskettes...........................................................................................28 Hard Drives......................................................................................29 Other Drives.....................................................................................29 RAM Disk........................................................................................29 ROM Disks ......................................................................................29 Configuring ROM-DOS (CONFIG.SYS).......................... 29 Using Multiple Configurations ........................................................31 Configuration Blocks .......................................................................31 Extending Menu Items To AUTOEXEC.BAT ................................35 Bypassing CONFIG.SYS And AUTOEXEC.BAT Commands ......36 CONFIG.SYS Command Descriptions............................................38 Installable Device Drivers................................................... 39 DISPLAY.........................................................................................40 EMM386 ..........................................................................................41 HIMEM............................................................................................44 HMA ................................................................................................46 POWER.EXE...................................................................................48 VDISK .............................................................................................50 Environment Variables.......................................................52 Configuring ROM-DOS for International Use.................52 Changing Conventions .................................................................... 54 Displaying Different Code Pages .................................................... 54 Printing Different Code Pages......................................................... 55 Changing the Keyboard Layout....................................................... 55 Putting It All Together..................................................................... 58 Brief Description of Commands.........................................61 Full Description of Commands...........................................66 ? ....................................................................................................... 67 @ ..................................................................................................... 69 ;........................................................................................................ 70 ATTRIB........................................................................................... 71 BREAK ........................................................................................... 73 BUFFERS........................................................................................ 75 CHDIR............................................................................................. 77 CHKDSK......................................................................................... 79 CLS.................................................................................................. 82 COMMAND.................................................................................... 83 COPY .............................................................................................. 85 COUNTRY...................................................................................... 90 CTTY............................................................................................... 93 DATE .............................................................................................. 94 DEL ................................................................................................. 96 DEVICE .......................................................................................... 98 DEVICEHIGH ................................................................................ 99 DIR ................................................................................................ 100 DISKCOPY ................................................................................... 104 DOS............................................................................................... 106 ECHO ............................................................................................ 108 ERASE .......................................................................................... 110 EXIT.............................................................................................. 112 FCBS ............................................................................................