-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 02/16/07 07:39, [EMAIL PROTECTED] wrote: > On Fri, Feb 16, 2007 at 10:43:26AM +0100, Mirko Scurk wrote: >> Manoj Srivastava wrote: >>> On Thu, 15 Feb 2007 19:50:21 -0600, Ron Johnson >>> <[EMAIL PROTECTED]> said: [snip] > I remember when I got to use a machine without the regular RAM we all > take for granted now; main memory was a magnetic drum with tracks of > 108 29-bit words. The length of a loop was quantized to be a multiple > of time for a complete drum revolution.
My grandfather's company had a single user NCR 499 "business computer" with core memory. If the power went out, once it was restored we could restart the computer from where it was by noting the prompt (the machine had a built-in tty), searching for it's hex address in the asm listings, punching it in and pressing <GO>. Very handy. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFF1dXVS9HxQb37XmcRApG7AJ9kwV8sananZR4BlP97/KgngN1MRgCglhI6 zpDGY+Fa/SnIxvxm74kZtqY= =ShLI -----END PGP SIGNATURE----- -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
