Talk:Apollo/Domain

Untitled
''Ignore the "< Talk:Apollo" link above. It refers to the Greek god, not the computer system.''

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Am updating this page as memory comes back to me. Will keep doing so from time to time. It may be that I have documentation still stashed away somewhere which would help. I definitely still have some hardware in the garage.

Proper info really requires input from several people, especially from the US (I'm from the UK, so my perspective may not be a typical one), and I wasn't acquainted with Apollo throughout the whole of its history, so I can't provide details from early on or after around 1992.

User:AlexSwanson 21 July 2005

Two things I remember (may be inaccurate) about the Apollo systems was that

1) They were virtual memory using a single 68000 (which was not designed for VM). This was performed by using a Z80 as the memory management CPU! On a memory fault, the 68000 clock was halted, the Z80 took control, paged in the missing block, and the 68000 restarted, completing the memory read/write operation. An interesting solution.

2) The Apollo Token Network and the disk drives operated at the same serial speed. A single controller(?) and driver software was able to work with both. This eased the software problems involved in networking (virtual) disks.

User:HenriSocha 2006 Sept 20

This article really needs some sources. It's been too long to depend on memory. Some of the information here is wrong but without sources all I can do for now is remove it. Rees11 20:20, 2 January 2007 (UTC)

The information removed is not wrong, so I have reinstated it. I appreciate the problem with sources, but I haven't put in anything I'm not sure of. Alex Swanson 14:37, 1 February 2007 (UTC)

I have now also removed the "citation needed", which is simply provocative. I was associated with ordering Apollo equipment for my company and IBM TR was always an option (although not one we took up). From memory, it should also have been an option in setting up the hardware at the PROM level. If anyone is not willing to trust my memory on this you might as well just delete the whole bloody article and write your own. Alex Swanson 06:03, 5 February 2007 (UTC)

Additional info
I've added a bunch more info based on my experiences ordering, maintaining and administering an Apollo network of almost 100 machines from 1987 to 2000. I am cited in the Apollo FAQ (Phil Pokorny) Nician (talk) 06:58, 4 May 2008 (UTC)

More Info
Early DN Models (circa 1983) like the DN440, DN460 and DN660 are based in a proprietary 32-Bits processor implemented using "bit-slice" technology (reference = APOLLO Products Guides at WWW.BITSAVERS.ORG PDF Archives APOLLO/BROCHURES/N440_460_Brochure_1983.pdf) —Preceding unsigned comment added by 201.1.171.220 (talk) 12:48, 29 July 2009 (UTC)

// and @ double slash and at symbol
supposedly the apollo domain is the origin of the @ (at) sign and usage of double forward slashes (//). Latter used in URLs with scheme such as http, URL schemes that involve the direct use of an IP-based protocol to a specified host on the Internet use a common syntax for the scheme-specific data. According to http://www.ibm.com/developerworks/xml/library/x-urlni/index.html and see http://www.w3.org/DesignIssues/Axioms.html — Preceding unsigned comment added by Naxa (talk • contribs) 08:49, 9 June 2013 (UTC)