| 词条 | DR-OpenDOS |
| 释义 | > DR-DOSCaldera 9 : Microcomputer software|Disk operating systems|DOS issues|Proprietary operating systems|Floppy disk-based operating systems|Operating system distributions bootable from read-only media|Caldera (company) operating systems|Digital Research|Software written primarily in assembly language |
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开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。