| Company / developer | Apparat, Inc. |
|---|---|
| OS family | DOS |
| Working state | Historic |
| Source model | Proprietary |
| Initial release | 1980s |
| Available language(s) | English |
| Supported platforms | TRS-80 |
| Kernel type | Monolithic |
| Default user interface | Command line interface |
NewDos/80 is a third-party operating system that was made available for the Radio Shack TRS-80 line of microcomputers beginning in 1980. NewDos/80 was developed by Apparat, Inc. of Denver, Colorado.
The operating system had additional commands and features that were not available in TRS-DOS, the native operating system for TRS-80 computers. NewDos/80 allowed TRS-80 computers to take advantage of advances in floppy disk storage that went beyond the initial 87.5KB 35-track, single-density, single-sided format.[1] The system also corrected issues that early versions of TRS-DOS had with arbitrarily losing data due to errors in how it communicated with the contemporary TRS-80 disk drives' 1771 disk controller.
NewDos/80 had many options for specifying specific low-level disk configurations. Settings such as diskette formats, disk drive types, track geometry and controllers could be configured using the PDRIVE command.[1]
Contents |
Some typical NewDos/80 commands:
| Command | MS-DOS, OS/2, Windows | UNIX, Unix-like |
|---|---|---|
| APPEND | type file1 >> file2 | cat file >> file2 |
| ATTRIB | attrib | chmod |
| AUTO | AUTOEXEC.BAT | ~/.profile or ~/.login or /etc/rc* |
| CLOCK | prompt $t * | in some shells: PS1="...\t..." * |
| COPY | copy | cp |
| DIR | dir | ls |
| FORMAT | format | mkfs |
| FREE | chkdsk | df |
| KILL | del | rm |
| LIST | type | cat |
| LOAD program | program | program |
| type file >> prn | lpr | |
| PROT | attrib | chmod |
| RENAME | ren or rename | mv |