joabj writes: In what may be its first investment in an open source software company, Microsoft has quietly invested in TurboHercules, which maintains the Hercules open source IBM mainframe emulator. Perhaps the potential for purloining customers from the juicy mainframe market outstrips any misgivings Microsoft may have about open source. You might remember TurboHercules: In March, it filed an antitrust complaint with the EU over IBM's tying of its mainframe OSes with its hardware. Link to Original Source
If a 6600 used paper tape instead of core memory, it would use up tape
at about 30 miles/second.
-- Grishman, Assembly Language Programming