Various flavors of UNIX

Various flavors of UNIX
  • AIX--major--IBM's version that runs on the RS/6000 series of RISC systems and mainframes. Over 500,000 RS/6000 systems have been sold!
  • BSD--minor--This version has a lesser presence in the marketplace. Although many variants can trace their heritage to BSD, it is not that popular as a product.
  • HP-UX--major--Hewlett Packard's (HP) version with a strong hardware presence in the marketplace and a strong future growth path.
  • IRIX--minor--While the Silicon Graphics (SGI) machines are wonderful for graphics, they have not found wide acceptance in business environments.
  • Linux--minor--Although this is a very nice and free variant, it has little commercial presence in the marketplace (probably because corporations do not want to run their mission-critical applications without a vendor they can sue when there is a problem). See the SAMS Linux Unleashed series books (Red Hat and Slackware) for detailed information.
  • Solaris--major--Sun Microsystems' version with a strong hardware presence in the marketplace and a strong future growth path.
  • SunOs--minor--Largely being superseded by Solaris installations. A good variant, but it is difficult for a company to support two versions of UNIX at a time.
  • SVR4--major--This version has a strong presence in the marketplace. In addition, many variants can trace their heritage to System V Release 4.
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The most commonly used UNIX variants, including:

  • HP-UX (Hewlett Packard)
  • Solaris (SunSoft)
  • SVR4 (AT&T)
  • AIX (IBM)
  • BSD (Berkeley Software)
  • Linux
  • SunOS (predecessor to Solaris)
  • IRIX

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