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- The Durango F-85 was an early personal computer introduced in September 1978 by Durango Systems Corporation, a company started in 1977 by George E. Comstock, John M. Scandalios and Charles L. Waggoner, all formerly of Diablo Systems. The F-85 could run its own multitasking operating system called DX-85M, which included an integral Indexed Sequential (ISAM) file system and per-task file locking, or alternatively CP/M-80. DX-85M utilized a text configuration file named CONFIG.SYS five years before this filename was used for a similar purpose under MS-DOS/PC DOS 2.0 in 1983. The F-85 used single-sided 5ΒΌ-inch 100 tpi diskette drives providing 480 KB utilizing a high-density 4/5 group coded encoding. The machine was using a Western Digital FD1781 floppy-disk controller with 77-track Micropolis drives. In later models this was expanded to a double-sided option for 960 KB (946/947 KB formatted) per diskette. Durango later dropped the "F-85" model name and adopted a user model system, with 700 being the entry model and 950 being the full-featured model. Still later, they designed a 80186-/80286-based 16-bit system, the Durango "Poppy"; MS-DOS was selected as the entry operating system. (en)
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- 9578 (xsd:nonNegativeInteger)
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- keyboard, full stroke, 84 key (en)
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- Durango Systems Corp. (en)
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| dbp:media
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- two 100 tpi high-capacity 5.25-inch diskette drives storing 480 KB on each single-sided or 960 KB on double-sided diskettes using group-coded recording (en)
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- Personal business computer (en)
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| rdfs:comment
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- The Durango F-85 was an early personal computer introduced in September 1978 by Durango Systems Corporation, a company started in 1977 by George E. Comstock, John M. Scandalios and Charles L. Waggoner, all formerly of Diablo Systems. The F-85 could run its own multitasking operating system called DX-85M, which included an integral Indexed Sequential (ISAM) file system and per-task file locking, or alternatively CP/M-80. DX-85M utilized a text configuration file named CONFIG.SYS five years before this filename was used for a similar purpose under MS-DOS/PC DOS 2.0 in 1983. (en)
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