Editing TRSDOS (section)

==History==
[[Tandy Corporation]]'s [[TRS-80]] microcomputer did not have a disk drive or disk operating system at release. The first version of TRSDOS, by Randy Cook, was so buggy that others wrote alternatives, including [[NewDos/80|NewDOS]] and LDOS. After disputes with Cook over ownership of the [[source code]], Tandy hired Logical Systems, LDOS's developer, to continue TRSDOS development.<ref name="white198708">{{Cite magazine |last=White |first=Ron |date=August 1987 |title=The Tandy Story: It all started 10 years ago in a converted used-car showroom... |url=https://archive.org/details/80-microcomputing-magazine-1987-08 |magazine=80 Micro |pages=[https://archive.org/details/80-microcomputing-magazine-1987-08/page/n51 50]-64 |access-date=2019-05-18}}</ref> TRSDOS 6, shipped with the [[TRS-80 Model 4]] in 1983, is identical to LDOS 6.00.<ref name="archer198310">{{cite news | url=https://archive.org/stream/byte-magazine-1983-10/1983_10_BYTE_08-10_UNIX#page/n293/mode/2up | title=Radio Shack's TRS-80 Model 4 | work=BYTE | date=October 1983 | accessdate=31 January 2015 | author=Archer, Rowland Jr. | pages=292–302}}</ref>

===Dates===
* October, 1979 – Radio Shack releases TRSDOS 2.3
* May 1, 1981 – Radio Shack releases Model III TRSDOS 1.3
* April 26, 1983 – Radio Shack introduces TRSDOS Version 6.0 with the new Model 4s
* 1984 – Radio Shack releases Version 6.2, the definitive version for the Model 4<ref>{{cite web |title=1985 Radio Shack Computer Catalog RSC-12 page 28 |url=http://www.radioshackcatalogs.com/html/catalogs_extra/1985_rsc-12/h028.html |website=radioshackcatalogs dot com |publisher=Tandy/Radio Shack |accessdate=May 7, 2019}}</ref>
* 1984 – Logical Systems publishes ''The Source'', the commented assembler source code to TRSDOS 6.2<ref name="the-source">{{cite web |title=The Source |url=http://www.trs-80.org/the-source/ |website=trs-80 dot org |publisher=Matthew Reed |accessdate=May 21, 2019}}</ref>
* Late 1986 – Logical Systems releases LS-DOS 6.3, the functionally equivalent update to TRSDOS 6.2. From this date, Tandy/Radio Shack ships it with the Model 4D.