To quote one of our members: Mainframe - An obsolete device still used by thousands of obsolete companies, serving billions of obsolete customers, and making huge obsolete profits, for their obsolete shareholders. And this year's mainframes run twice as fast as last year's."
-----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Bob Shannon Sent: Monday, October 19, 2009 12:14 PM To: [email protected] Subject: Re: Fwd: Is There Such a Thing as a Mainframe Monopoly? > Who else produces mainframes???????? What is the market share of the > competition It all depends on your definition of a mainframe. If one defines mainframe as "IBM compatible", then the answer is none. If mainframe means a wicked powerful computer, then there are a number of them. Remember BUNCH? (Burroughs, Univac, NCR, Control Data and Honeywell). None were IBM-compatible but all were mainframes. Hitachi has a mainframe that runs a proprietary OS, but as Bill pointed out they used to have an IBM-compatible processor as did Amdahl. Many clustered PC systems would qualify as big honking systems that are not IBM compatible. Bob Shannon Rocket Software ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

