I seem to recall a company called Magnuson that had a compatible 4331/41/81 I don't remember which model.
-----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 ========================== This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to which they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. ---------------------------------------------------------------------- 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
