Edos is a discontinued operating system based upon IBM's original mainframe DOS (not to be confused with the unrelated and better known MS-DOS for the IBM PC). The name stood for extended (or enhanced) disk operating system. It was later purchased by the West German computer company Nixdorf, who renamed it to NIDOS (Nixdorf Disk Operating System).
In 1970, IBM announced the IBM/370 product line along with new peripherals, software products, and operating systems, including DOS/VS that supplanted DOS. Although IBM was rightly focused on their new products, the computing world was dominated by the IBM/360 line, which left a lot of users nervous about their investment.
Although there were a couple of projects emulating the IBM/370 on the IBM/360 (e.g., CFS, Inc.), other companies took a different approach, extending the then-current (and limited) DOS.
The Computer Software Company (TCSC) took the latter approach. Starting in 1972, they developed Edos, Extended Disk Operating System. They extended the number of fixed program space partitions from 3 to 6, added support for new hardware, and included features that IBM had offered separately. The first version of Edos was released in 1972, in response to the announcement by IBM that DOS Release 26 was the last DOS release to be supported on the System 360, and future DOS Releases would support System 370 machines only.[1]
They also made available other third party enhancements such as a spooler and DOCS, from CFS, Inc.
^Leavitt, Don (16 May 1977), "'Edos/VS' marks first response to IBM Release 34", ComputerWorld, vol. 11, no. 20, IDG Enterprise, pp. 1, 4, ISSN 0010-4841
enhanced EDOS to become EDOS/VS, which was announced in 1977 and delivered it to beta test sites in 1978. In May 1977, TCSC announced it would release Edos/VS...
tuning in music All pages with titles containing Edo Eddo (disambiguation) Edos, an operating system Edo., abbreviation used for "state" in Mexico (estado(s))...
Edo (Japanese: 江戸, lit. '"bay-entrance" or "estuary"'), also romanized as Jedo, Yedo or Yeddo, is the former name of Tokyo. Edo, formerly a jōkamachi...
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Edo Lullaby (Japanese: 江戸子守唄 or Edo komoriuta) is a traditional Japanese cradle song. It originated in Edo, was propagated to other areas, and is said...
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The Fall of Edo (Japanese: 江戸開城, Hepburn: Edo Kaijō), also known as Edojō Akewatashi (江戸城明け渡し, Evacuation of Edo Castle) and Edo Muketsu Kaijō (江戸無血開城...
included its own operating systems for IBM and compatible mainframes, EDos and EDos/VS; it had licensed the DATACOM/DB database from Applied Data Research...
Edin Osmić (born 22 December 1978), better known by his stage name Edo Maajka, is a Bosnian rapper, record producer and songwriter. His popularity brought...
tokɯŋawa baꜜkɯ̥ɸɯ]), also known as the Edo shogunate (江戸幕府, Edo bakufu), was the military government of Japan during the Edo period from 1603 to 1868. The Tokugawa...
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Overwinnen (Dutch: Haarlemsche Football Club Unity Makes Win), known as HFC EDO or just EDO, is an amateur association football club in Haarlem, Netherlands. It...
Mohammad Edo Febriansah (born 25 July 1997) is an Indonesian professional footballer who plays for Liga 1 club Persib Bandung and the Indonesia national...
Agbontaen, K.A. (2000). "A History of Modern Literary Development Among the Edos 1897–1960". Africa: Rivista trimestrale di studi e documentazione dell'Istituto...
Edo College is a secondary grammar school in Benin City, Nigeria, the oldest in the Mid-Western Region. It was established in February, 1937 and started...
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