{"id":479,"date":"2006-12-14T09:54:04","date_gmt":"2006-12-14T14:54:04","guid":{"rendered":"http:\/\/brucegarrett.com\/brucelog\/479"},"modified":"2006-12-14T09:57:31","modified_gmt":"2006-12-14T14:57:31","slug":"im-endeavouring-maam-to-construct-a-mnemonic-memory-circuit-using-stone-knives-and-bear-skins","status":"publish","type":"post","link":"https:\/\/brucegarrett.com\/brucelog\/479","title":{"rendered":"I&#8217;m Endeavouring, Ma&#8217;am, To Construct A Mnemonic Memory Circuit Using Stone-Knives And Bear-Skins&#8230;"},"content":{"rendered":"<blockquote><p>Originally (1947) EDSAC boasted [sic] 512 words of main memory stored in 16 ultrasonic mercury-delay-line tanks, cleverly known as &quot;long&quot; tanks because they were longer then the short tanks used for registers.&nbsp; On the bright side, as we used to quip, each of the 512 words was 18 bits!&nbsp; Forget the word count, feel the width!&nbsp; Alas, for technical reasons, only 17 of the 18 bits were accessible.&nbsp; By 1952, the number of long tanks had doubled, providing a dizzy total of 1-KB words.&nbsp; Input\/output was via five-track paper tape, which therefore also served as mass [sic] storage.&nbsp; Subject only to global timber production, one might see this as virtually unlimited mass storage&#8230;<\/p>\n<p>-Stan Kelly-Bootle, writing in the current issue of the ACM Queue, <em>Will The Real Bots Please Stand Up?<\/em><\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Originally (1947) EDSAC boasted [sic] 512 words of main memory stored in 16 ultrasonic mercury-delay-line tanks, cleverly known as &quot;long&quot; tanks because they were longer then the short tanks used for registers.&nbsp; On the bright side, as we used to quip, each of the 512 words was 18 bits!&nbsp; Forget the word count, feel the [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[36],"class_list":["post-479","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-computer-geeking"],"_links":{"self":[{"href":"https:\/\/brucegarrett.com\/brucelog\/wp-json\/wp\/v2\/posts\/479","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brucegarrett.com\/brucelog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/brucegarrett.com\/brucelog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/brucegarrett.com\/brucelog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/brucegarrett.com\/brucelog\/wp-json\/wp\/v2\/comments?post=479"}],"version-history":[{"count":0,"href":"https:\/\/brucegarrett.com\/brucelog\/wp-json\/wp\/v2\/posts\/479\/revisions"}],"wp:attachment":[{"href":"https:\/\/brucegarrett.com\/brucelog\/wp-json\/wp\/v2\/media?parent=479"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/brucegarrett.com\/brucelog\/wp-json\/wp\/v2\/categories?post=479"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/brucegarrett.com\/brucelog\/wp-json\/wp\/v2\/tags?post=479"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}