Comparing Microsoft DOS with UNIX

Comparison of Microsoft DOS and UNIX As the name suggests, the operating system (OS) is a collection of programs that operate a personal computer (PC). Its main purpose is to support programs that actually achieve jobs that people are interested in, so that competing programs can share computer resources. However, the OS also controls the internal operation of the computer, as a traffic manager that controls the flow of data in the system and starts a start process and a stop process, and as a means to enable software to access hardware and system software It works.

Unix has become huge and complex. The commitment to error compatibility (that is, the unused function) created a Unix source code repository that became enlarged and difficult to maintain. Microsoft recommends DOS and Windows. This basically corresponds to the program loader and user interface. All other applications are applications. Unix became intense. Vendors are not working together to develop the Unix market, but rather "to pay respect" to their particular version of Unix. Two vendors can not agree on one version and everyone thinks their version is better actually, 98% identical for the programming interface you are actually using. When Unix vendors continue to challenge, Microsoft is the only winner

Unix vendor alliances and standard protocols do not work. Although UNIX vendors agree, Microsoft has only one source code base. Microsoft is compatible with itself, but as long as there are multiple implementations of the same idea, Sun is unlikely to be compatible with other Unix vendors. Vendors regularly respond to Unix problems by signing "standardization" contracts. This has been going on for years. There are several standards that promise the same: POSIX, XPG, SVID, and now COSE. The customer does not purchase it because I have seen it before. One effect of lack of customer concern is the increase in desperate feelings of suppliers. It is becoming increasingly evident that the Unix community is formed and competing in the computer industry or ultimately will die. If that happens to IBM, it will undoubtedly happen on Unix.