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Mainframe Operating Systems

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ALSO CALLED: Main Frame OS, Mainframe OS
DEFINITION: Multics (Multiplexed Information and Computing Service) was a mainframe time-sharing operating system that was developed in the 1963-1969 period through the collaboration of the Massachusetts Institute of Technology (MIT), General Electric (GE), and Bell Labs. Multics was the first or one of the first operating systems that used page-segmented storage. The operating system was written in PL/I and  … 
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Mainframe Operating SystemsIT Downloads (View All Report Types)
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Centrify Express 2010.1
sponsored by Centrify Corporation
SOFTWARE DOWNLOAD: Centrify Express is the #1 choice of IT professionals for Active Directory-based single sign-on to Linux and Mac systems.  It is a free solution with more functionality, tools, and upgrade options than alternative offerings.
Posted: 06 Aug 2010 | Premiered: 06 Aug 2010

Centrify Corporation

Endpoint Security and Control
sponsored by Sophos, Inc.
TRIAL SOFTWARE: Learn how Sophos delivers complete protection against viruses, spyware and adware, controls VoIP, IM, P2P, games and removable storage devices and enables you to assess and control all endpoints.
Posted: 03 Oct 2008 | Premiered: 02 Oct 2008

Sophos, Inc.

IBM Data Studio - Available at no charge
sponsored by IBM
TRIAL SOFTWARE: IBM Data Studio provides an integrated, modular environment for productive administration of DB2 for Linux, UNIX and Windows, and collaborative database development tools for DB2, Informix, Oracle, and Sybase. View this page to get an overview of its components and download a trial of Data Studio with a free database, DB2 Express-C.
Posted: 20 Dec 2011 | Premiered: 20 Dec 2011

IBM

MegaCryption v6.2
sponsored by Advanced Software Products Group, Inc. (ASPG, Inc.)
TRIAL SOFTWARE: ASPG's latest enterprise encryption is designed for the prevention of data security breaches and securing data exchanged between business partners for z/OS, Windows, UNIX & Linux.
Posted: 06 Mar 2009 | Premiered: 06 Mar 2009

Advanced Software Products Group, Inc. (ASPG, Inc.)

PHD Virtual Backup for VMware 6.5.2
sponsored by PHD Virtual
TRIAL SOFTWARE: Download your 15-day automatic trial for PHD Virtual Backup for VMware 6.5.2 with a new, innovative backup archiving feature. Now, automate the ability to replicate backup copies to a different location.
Posted: 04 Feb 2014 | Premiered: 04 Feb 2014

PHD Virtual

Real Technology Lessons
sponsored by Red Hat and JBoss
SOFTWARE DEMO: Forget the jargon, you need real technology to help you get things done. View these simple lessons from Red Hat for open source applications you can trust.
Posted: 18 Sep 2007 | Premiered: 01 Sep 2007

Red Hat and JBoss
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MAINFRAME OPERATING SYSTEMS DEFINITION (continued): …  ran on GE hardware. By 1970, Bell Labs had withdrawn from the project, and Honeywell, which had bought GE's computer division, continued as the hardware provider. Support from the Advanced Research Projects Agency helped sustain the project.In 1973, Honeywell announced a commercial system, the 6180, consisting of two processors that ran at 1 MIPS each, 768 kilobytes of memory, an 8 megabyte bulk store, a 1.6 gigabyte hard disk, 8 tape drives, and two communication controllers. The price was about $7 million. Later, a multiple disk system called the New Storage System (NSS) was added. In 1977, … 
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