{"id":7876,"date":"2005-08-01T20:17:54","date_gmt":"2005-08-02T03:17:54","guid":{"rendered":"http:\/\/hill-kleerup.org\/blog\/wp\/2005\/08\/01\/music-in-the-cards.html"},"modified":"2005-08-01T20:17:54","modified_gmt":"2005-08-02T03:17:54","slug":"music_in_the_ca","status":"publish","type":"post","link":"https:\/\/hill-kleerup.org\/blog\/2005\/08\/01\/music_in_the_ca.html","title":{"rendered":"Music in the cards"},"content":{"rendered":"

When I first got into the computer biz in 1983, punch cards were on the way out. In both my internship and my initial systems programmer job, we had card readers, and even some backup processes that made use of them, but nothing in production. But everyone else I knew had stories — recent stories — about their use.<\/p>\n

And in that (relatively) short time, we’ve gone from punch cards to MP3 players which can store hours of music on a passingly small piece of hardware.
\nHow do they compare?<\/a><\/p>\n

Assuming a non-Hollerith encoding with eight bits per column, and [a 3-minute] MP3 file encoded at 128kbps CBR, there would be 36,864 cards in that deck, and the card reader would need a throughput of 205 cards per second. It might be wise to include an 8-column sequence number, however, so that a misordered deck can be repaired by a card sorter; with 72 data columns per card, the total is precisely 40,960 cards (40K cards), requiring a 228 card\/second throughput. The 21 boxes of cards<\/strong> needed would be 5 feet 9 inches tall<\/strong>.<\/p>\n

Amazing.<\/p>\n

I still have a couple of boxes of punch cards in the basement. They make great notecards.<\/p>\n

(via BoingBoing<\/a>)<\/small><\/p>\n","protected":false},"excerpt":{"rendered":"

When I first got into the computer biz in 1983, punch cards were on the way out. In both my internship and my initial systems programmer job, we had card…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[20],"tags":[],"class_list":["post-7876","post","type-post","status-publish","format-standard","hentry","category-hi-tech"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":1510,"url":"https:\/\/hill-kleerup.org\/blog\/2001\/12\/19\/carded.html","url_meta":{"origin":7876,"position":0},"title":"Carded","author":"***Dave","date":"Wed 19-Dec-01 12:42am","format":false,"excerpt":"Well, most of the Christmas cards -- at least the out-of-area ones -- are off in the mail. Cards are always kind of a difficult chore for us, partly because...","rel":"","context":"In "Personal"","block_context":{"text":"Personal","link":"https:\/\/hill-kleerup.org\/blog\/category\/personal"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":15222,"url":"https:\/\/hill-kleerup.org\/blog\/2009\/07\/16\/game-review-10-days-in-africa.html","url_meta":{"origin":7876,"position":1},"title":"Game review: 10 Days in Africa","author":"***Dave","date":"Thu 16-Jul-09 7:46am","format":false,"excerpt":"Mary gave Katherine a copy of this game, from Out of the Box. We played it last night during Family Game Night -- and had a lot of fun. The game is conceptually simple. Put together (sort of like putting together hands of rummy) a trip through Africa over the\u2026","rel":"","context":"In "Gaming"","block_context":{"text":"Gaming","link":"https:\/\/hill-kleerup.org\/blog\/category\/gaming"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":8475,"url":"https:\/\/hill-kleerup.org\/blog\/2005\/11\/02\/variation_on_a.html","url_meta":{"origin":7876,"position":2},"title":"Variation on a Greeting Card Theme","author":"***Dave","date":"Wed 2-Nov-05 6:02pm","format":false,"excerpt":"The USPS is now offering an interesting (and very clever) combination of \"e-cards\" and postal service. You can design a greeting card by hand (even uploading digital images to it),...","rel":"","context":"In "Hi-Tech"","block_context":{"text":"Hi-Tech","link":"https:\/\/hill-kleerup.org\/blog\/category\/hi-tech"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":33355,"url":"https:\/\/hill-kleerup.org\/blog\/2013\/04\/26\/credit-cards-and-plastic-bags.html","url_meta":{"origin":7876,"position":3},"title":"Credit cards and plastic bags","author":"***Dave","date":"Fri 26-Apr-13 6:50pm","format":false,"excerpt":"I had a very buggy end-of-life credit card what worked on about half the readers out there, but that I didn't want to get replaced because it had just a few months before a new one would get sent (and I was afraid if I complained, they'd change my fricking\u2026","rel":"","context":"In "~PlusPosts"","block_context":{"text":"~PlusPosts","link":"https:\/\/hill-kleerup.org\/blog\/category\/blogging\/plusposts"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":6770,"url":"https:\/\/hill-kleerup.org\/blog\/2005\/01\/04\/the_gift_that_k.html","url_meta":{"origin":7876,"position":4},"title":"The gift that keeps giving","author":"***Dave","date":"Tue 4-Jan-05 6:46pm","format":false,"excerpt":"Daniel Gross thinks Gift Cards are evil. His criticisms? First off, Gross thinks they're the \"lazy\" gift. What do you buy when you're too lazy to find a real present?...","rel":"","context":"In "Big Business"","block_context":{"text":"Big Business","link":"https:\/\/hill-kleerup.org\/blog\/category\/big-business"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":8449,"url":"https:\/\/hill-kleerup.org\/blog\/2005\/11\/14\/christmas_cards.html","url_meta":{"origin":7876,"position":5},"title":"Christmas cards!","author":"***Dave","date":"Mon 14-Nov-05 10:23am","format":false,"excerpt":"It getting to be that time of year again, I dragged Margie along to shop for Christmas cards on Saturday. We went to Papyrus at the Park Meadows Mall, which...","rel":"","context":"In "Personal"","block_context":{"text":"Personal","link":"https:\/\/hill-kleerup.org\/blog\/category\/personal"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/hill-kleerup.org\/blog\/wp-json\/wp\/v2\/posts\/7876","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hill-kleerup.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hill-kleerup.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hill-kleerup.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hill-kleerup.org\/blog\/wp-json\/wp\/v2\/comments?post=7876"}],"version-history":[{"count":0,"href":"https:\/\/hill-kleerup.org\/blog\/wp-json\/wp\/v2\/posts\/7876\/revisions"}],"wp:attachment":[{"href":"https:\/\/hill-kleerup.org\/blog\/wp-json\/wp\/v2\/media?parent=7876"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hill-kleerup.org\/blog\/wp-json\/wp\/v2\/categories?post=7876"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hill-kleerup.org\/blog\/wp-json\/wp\/v2\/tags?post=7876"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}