pete@stc.UUCP (03/14/86)
Summary: Expires: Sender: Followup-To: Distribution: Keywords: Xpath: ukc eagle In article <49@man.cs.uxuk.ac.> alasdair@uk.ac.man.cs.ux writes: >My friends and colleagues frequently sigh nostalgically in the common room >for the days in which they used to modify parts of the Atlas operating system >with wire-cutters and tweezers... > British Telecom techicians are *still* sighing as they make changes to cyclic store data on TXE4RD exchanges. These are enormous (4 foot x 2 foot) core ROMS which hold subscribers' information in the form of wires run through ferrite cores. Rethreading these store to make subs' data changes is probably the *worst* job in BT! The MCU (processor) on this system use[s,d] the same principle on a smaller scale for its program store. They are now being replaced by ROMs. -- Peter Kendell <pete@stc.UUCP> ...!mcvax!ukc!stc!pete "Shut up, Marvin. This is organism talk."