http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/ Yesterday's tomorrow, today. Sat, 11 Oct 2008 20:13:58 +0000 http://wordpress.org/?v=2.6.2 http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-1060183 World’s First Hard Drive - 1956 - Schlafgras Tech Blog Wed, 03 Sep 2008 20:08:04 +0000 http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-1060183 [...] the world’s first hard drive, first introduced in 1956 — IBM’s 5MB Random Access Memory Accounting: RAMAC®, [...] [...] the world’s first hard drive, first introduced in 1956 — IBM’s 5MB Random Access Memory Accounting: RAMAC®, [...]

]]> http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-1052940 מחשבות, מחשבים, ושאר דברי בלע » Blog Archive » כוננים קשיחים, מחיצות ומערכות קבצים Sun, 13 Apr 2008 17:36:08 +0000 http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-1052940 [...] הקשיח בראשית ברא הענק הכחול כונן קשיח בנפח של 5MB, מה שנשמע קצת מצחיק [...] [...] הקשיח בראשית ברא הענק הכחול כונן קשיח בנפח של 5MB, מה שנשמע קצת מצחיק [...]

]]> http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-926172 CDs e DVDs: por que ainda são deste tamanho? Tue, 18 Dec 2007 14:38:29 +0000 http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-926172 [...] miniaturização tornou possível, por exemplo, andarmos por aí com 160GB em um iPod classic. O primeiro, de 1956, era da IBM, possuía 50 pratos de 61 centímetros de diâmetro que giravam a 1200RPM e, [...] [...] miniaturização tornou possível, por exemplo, andarmos por aí com 160GB em um iPod classic. O primeiro, de 1956, era da IBM, possuía 50 pratos de 61 centímetros de diâmetro que giravam a 1200RPM e, [...]

]]> http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-2120 View From the Edge » Blog Archive » Modern Mechanix » 1956: World’s First Hard Drive (5MB) Sat, 24 Jun 2006 16:18:24 +0000 http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-2120 [...] Modern Mechanix » 1956: World’s First Hard Drive (5MB) [...] [...] Modern Mechanix » 1956: World’s First Hard Drive (5MB) [...]

]]> http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-2042 TechEBlog » Top 10 Strangest Gadgets of the Past Fri, 23 Jun 2006 06:50:29 +0000 http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-2042 [...] Presenting the world’s first hard drive, first introduced in 1956 — IBM’s 5MB Random Access Memory Accounting: RAMAC®, magnetic-disk memory storage. It stored information on fifty disks, which spun at 1,200 rpm. These disks are mounted so as to rotate about a vertical axis, with a spacing of three tenths of an inch between disks. This spacing permits two magnetic heads to be positioned to any one of the 100 concentric tracks which are available on each side of each disk. Each track contains 500 alphanumeric characters. Total storage capacity: 5,000,000 characters. The two recording heads are mounted in a pair of arms which are moved, by a feed-back control system, in a radial direction to straddle a selected disk. [...] [...] Presenting the world’s first hard drive, first introduced in 1956 — IBM’s 5MB Random Access Memory Accounting: RAMAC®, magnetic-disk memory storage. It stored information on fifty disks, which spun at 1,200 rpm. These disks are mounted so as to rotate about a vertical axis, with a spacing of three tenths of an inch between disks. This spacing permits two magnetic heads to be positioned to any one of the 100 concentric tracks which are available on each side of each disk. Each track contains 500 alphanumeric characters. Total storage capacity: 5,000,000 characters. The two recording heads are mounted in a pair of arms which are moved, by a feed-back control system, in a radial direction to straddle a selected disk. [...]

]]> http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-1875 Celi Online » El primer disco duro de la historia Wed, 14 Jun 2006 21:15:37 +0000 http://blog.modernmechanix.com/2006/05/19/1956-first-hard-drive-5mb/#comment-1875 [...] Via: Techeblog - modernmechanix - TecnoCHICA IBM [...] [...] Via: Techeblog - modernmechanix - TecnoCHICA IBM [...]

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