{"id":971,"date":"2023-04-24T10:02:07","date_gmt":"2023-04-24T08:02:07","guid":{"rendered":"https:\/\/cs21nextnet.cz\/?p=971"},"modified":"2023-10-31T10:17:59","modified_gmt":"2023-10-31T09:17:59","slug":"cp-m-could-rule-computers-instead-of-windows","status":"publish","type":"post","link":"https:\/\/cs21nextnet.cz\/en\/cp-m-could-rule-computers-instead-of-windows\/","title":{"rendered":"CP\/M COULD RULE COMPUTERS INSTEAD OF WINDOWS"},"content":{"rendered":"

Before Microsoft and Intel dominated the PC market through their common platform, the CP\/M (https:\/\/cs.wikipedia.org\/wiki\/CP\/M) operating system served small businesses in the late seventies and early eighties. It became a clear industry standard, yet in the end it did not succeed.<\/p>\n

The birth of CP\/M<\/strong><\/p>\n

CP\/M was a text-based operating system created in 1974 by American programmer Gary Kildall of Digital Research. Its abbreviation was originally based on “Control Program\/Monitor”, but later it was changed to the more user-friendly designation “Control Program for Microcomputers”.<\/p>\n

This single-user and single-task operating system for microcomputers with eight-bit Intel 8080\/85 microprocessors was modeled after the Altair computer. The launch of Zilog’s Z80 processor helped a lot. Together they revolutionized the world and were responsible for the rapid decline in microcomputer prices in the mid-70s.<\/p>\n

MS-DOS was inspired by CP\/M<\/strong><\/p>\n

In 1980, Microsoft released its first ever hardware product, the Z-80 SoftCard module. By connecting it to an Apple II computer, it was possible to run applications designed for the CP\/M operating system. The CP\/M operating system was to be used in the development of the personal computer (IBM PC 5150), but Digital Research did not like the proposed terms of the licensing agreement.<\/p>\n

So IBM turned to Microsoft, which licensed it a product called 86-DOS from Seattle Computer Products (SCP). As a result, in August 1981, 86-DOS became IBM PC-DOS, and the company began shipping it with an IBM computer. Microsoft later bought 86-DOS from SCP for $50,000. Subsequently, the system was renamed MS-DOS. MS-DOS was nothing more than a clone of CP\/M called 86-DOS. Its creator Tim Paterson (who worked for the SCP) was inspired by CP\/M, borrowing its architecture and command line nature.<\/p>\n

A missed opportunity<\/strong><\/p>\n

Understandably, Gary Kildall didn’t like what IBM did, so he tried to defend himself. However, Gary Kildall only concluded an agreement with IBM to supply CP\/M-86 OS as an optional component of IBM computers. By this time, however, IBM shipped PC-DOS as the default system and cost much less than CP\/M-86 (about $40 vs. $240).<\/p>\n

The missed opportunity \u2013 to license IBM’s CP\/M \u2013 is often referred to as one of the great tragedies in the history of computing. Gary Kildall could have become a billionaire, like Bill Gates, if he had made a deal with IBM.<\/p>\n

Why MS-DOS won<\/strong><\/p>\n

When Microsoft entered into an operating system agreement with IBM in 1981, it negotiated that IBM would not only license PC-DOS, but also sell the system under its brand name (MS-DOS) to other PC creators as a generic operating system.<\/p>\n

Soon after the start of PC sales from IBM, companies such as Compaq and Eagle Computer began selling similar machines to IBM, and licensed MS-DOS from Microsoft. Within a few years, hundreds of IBM PC clones had filled the computer market, and by 1986, MS-DOS-based computers had become the most popular personal computer platform in the U.S.<\/p>\n<\/div><\/div><\/div>

\"Outsourcing<\/span><\/div>
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