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| | SML 279 |
 | | The capacity of the computer was around 220 megabytes (yes megabytes, not gigabytes) took the space of two large refrigerators and weighed in at a hefty 2,000 pounds. | | | This revolutionary computer was the first to use a hard disk drive. | | | I would think that the value is at least $400 plus. |
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http://www.russell-arms.com/sml_279.htm
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| | RAMAC 2 Array DASD |
| | RAMAC RAMAC 2 Disk drive model 0664 (2GB) IBM Ultrastar XP (4GB) Storage capacity (GB) 3390-3 format 5.67 11.35 Logical DASD volumes 3390-3 format 2 4 Drawer cache (MB) 64 64 Drawer Performance Areal Density (Mb/in) 259.5 420-544 Average read seek time (ms) 9.5 8.0 Average Latency (ms) 5.6 4.2 Media transfer rate 5.2 9.6-12.6 | | | RAMAC 2 Array DASD doubles the data storage capacity of RAMAC DASD, ranging from as little as 11.35 GB to a maximum of 180GB behind a single IBM control unit. | | | RAMAC 2's Predictive Failure Analysis feature and the 3990-6's redundancy for all writes to cache provide an exceptional degree of fault tolerance. |
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http://www1.ibmlink.ibm.com/HTML/SPEC/g2256608.html
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| | Matthew G. Kirschenbaum: An Excerpt from Mechanisms [2]: "Professor RAMAC" |
| | You don't exactly make the claim that RAMAC is an "evolution" of the early, purely-calculating computer, but you suggest this when you mention the evolution of computers into new media databases. | | | This was fundamentally different from the strips of punched paper and magnetic tape that then dominated computer storage. | | | The RAMAC, by contrast, represented what was perhaps the first digital library. |
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http://www.otal.umd.edu/~mgk/blog/archives/000237.html
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| | IBM Archives: 650 RAMAC fact sheet 1959 |
| | The basic 650 is a stored program, magnetic drum computer with logical ability. | | | Information stored on magnetic tape also can be processed against information stored on random access magnetic disks for the automatic preparation on the 407 accounting machine of reports involving data from both sources. | | | The IBM RAMAC 650 electronic data processing system combines the capabilities of the world's most widely-used computer with the flexibility of random-sequence data availability. |
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http://www-1.ibm.com/ibm/history/exhibits/650/650_tr2.html
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| | Computers 1954 Ramac |
| | RAMAC magnetic disk drives allowed computers to move toward processing in real time by incorporating magnetic, random-access storage. | | | The Sabre Airline Reservation System of 1960, the first truly real-time, online computing transaction system, represnts RAMAC’s first successful application. | | | Forrester’s earlier magnetic-core memory benefited RAMAC’s disk drive. |
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http://www.digitalmuseums.org/1954.html
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| | BytePile.com - Definitions & Terms - R |
| | RAMAC (which stood for random access method of accounting and control) was the world's first computer disk storage system, developed by IBM engineers in San Jose and introduced in 1957. | | | RAMAC (pronounced RAY-mac; IBM does not spell out the initials) is a multiple-disk storage subsystem from IBM that emphasizes fault-tolerance and is intended for large enterprises. | | | RAMAC also uses multilevel caching to improve performance and it uses predictive failure analysis to identify potential disk failures. |
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http://bytepile.com/definitions-r.php
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| | COMPUTING MACHINES |
| | The world's first hard disk memory storage device was IBM's 350 RAMAC Disk File (Random Access Method of Accounting and Controlling), first offered in September, 1956. | | | At the end of 1999, it was possible to buy a 50-gigabyte (50 billion bytes) hard disk for less than $1,600. | | | More about the 350 RAMAC and other early memory devices: |
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http://ei.cs.vt.edu/~history/machines.html
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| | MALÅ GeoScience Easy Series Software |
| | Radar data and information on borehole positions for the respective antennas are created through the data collection software GPR.EXE that is delivered together with the GPR-system. | | | To acquire data for the Object Mapper software a RAMAC XV11 (or XV10) Monitor is required. | | | Both are easy to learn and very simple to operate, even under tough conditions. |
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http://easy.malags.com/software/index.php
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| | MALÅ GeoScience Easy Series News |
| | A new user interface is developed for easier start up and use of the RAMAC/GPR system. | | | The new Ramac Monitor is designed to work in a very tough environment. | | | Contact us now or discuss with the MALÃ
GeoScience representative in your region to get more information how you can upgrade your RAMAC/GPR system with the new Ramac Monitor. |
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http://easy.malags.com/news/index.php?act=show&id_no=63
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| | The future of magnetic data storage technology |
| | Figure 1 shows the areal density versus time since the original IBM RAMAC* brought disk storage to computing. | | | An engineer from the original RAMAC project of 1956 would have no problem understanding a description of a modern disk drive. | | | Improvements in areal density have been the chief driving force behind the historic improvement in hard disk storage cost. |
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http://www.research.ibm.com/journal/rd/443/thompson.html
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| | Terraplus: Products • Ground Penetrating Radar • Ramac / X3M |
| | Based on the flexibility and the modularity of the range of RAMAC/GPR, the RAMAC X3M is fully compatible with the Windows based acquisition software Ground Vision. | | | Autostacking for highest data quality and optimized speed performance | | | The built-in autostacking function secures best data quality at maximum survey speed. |
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http://www.terraplus.ca/products/ground-penetrating-radar/ramac_x3m.htm
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| | [No title] |
| | While its total capacity was only 5 megabytes, its "random access" mechanism that could move the head to any track on any disk in a second or less gave it a performance edge over larger-capacity magnetic tape drives. | | | In a data storage world dominated by paper and magnetic tape and punch cards, RAMAC was the world's first commercial hard-disk drive. | | | But since 1991, when IBM introduced a number of advanced features, the annual areal density improvement has doubled to a phenomenal 60 percent. |
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http://domino.research.ibm.com/comm/wwwr_thinkresearch.nsf/pages/storage297.html
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| | Rey Johnson |
| | I’ll be talking this evening about some of the highlights in the development of the first random access disk product – the IBM RAMAC 350 file – The why, where, when and how of the first disks. | | | By November this design had matured into a “magnetic disk processing machine.” RAMAC was on its way. | | | The first four years of disk file history have been reviewed in my remarks. |
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http://www.mdhc.scu.edu/100th/reyjohnson.htm
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| | BRL Report 1961 |
| | The design template information may in turn be used in the quantity computations program above, to compute volumes and slope stake reference information. | | | BRL 1961, IBM 650 RAMAC, start page 0350 | | | The computing center at the University is the only one in Arkansas. |
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http://ed-thelen.org/comp-hist/BRL61-ibm065.html
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| | ISD Technical Operations RAMAC Virtual Array |
| | Peer-to-Peer Remote Copy (PPRC) is used to copy data from the RAMAC Virtual Array in the computer room in C100 to the RAMAC Virtual Array in the 2nd computer room. | | | Each of the two RAMAC Virtual Array Storage Units support 1024 3390 format host volumes. | | | The data is kept in synch and if one site is lost, critical data is available for rapid recovery. |
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http://www.uihc.uiowa.edu/isd/Technical/ramac.htm
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| | IBM To Add Remote Copy Function To Ramac Storage |
| | But while IBM has offered such a function for its Ramac 3 storage product, that unit has only four channels. | | | BM plans to deliver technology by the end of the summer that will add remote copy capability to its Ramac Virtual Array mainframe storage product. | | | IBM's PPRC (peer-to-peer remote copy) function on the RVA works with server-based Geoplex hardware and software; when it detects a problem on the primary server, it freezes data on the backup server so corrupt data can't be mirrored on the RVA. |
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http://www.informationweek.com/684/84iurmc.htm
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| | GPR - ground penetrating radar |
| | What makes the Ramac design unique is it's intelligent implementation. | | | The Ramac GPR System requires a notebook computer to be in the field. | | | With a high dynamic range receiver there is no need to apply gain prior to storing data. |
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http://www.aegis-instruments.com/gprdetails.htm
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| | SCU Computer Engineering > News, Events, & Dates > RAMAC Restoration |
| | The Magnetic Disk Heritage Center (MDHC), whose mission is to make available to the general public the technical heritage of San Jose in data storage by preserving the legacy and history of the magnetic disk drive industry, is excited to have an original RAMAC magnetic disk drive on loan from IBM. | | | In keeping with its mission, MDHC will explore the feasibility of restoring this historic data storage unit to some functional level of operation. | | | IBM employees who deserve special recognition for their efforts in bringing about this RAMAC restoration undertaking include Jack Grogan (Storage Technology Division) and Dave Bennet (Storage Systems Division). |
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http://www.cse.scu.edu/send.cgi?info/RAMAC.htm
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| | SML-279: IBM RAMAC computer |
| | SML-279: IBM RAMAC (computer) (M) (computer - white marble) (M) description |
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http://www.sebastianworld.com/items/sml2/sml279.htm
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| | Disk drives take eventful spin |
| | But now, for the first time, self-acting slider bearings made it possible to have a head for each disk surface; it was no longer necessary to move heads up and down to reach different disks. | | | In 1961, having joined IBM right out of school 10 years earlier, Alan F. Shugart took over a project called the Advanced Disc File which, like its parent, the RAMAC 350, packed fifty 24-inch disks. | | | The drives bore the Telex nameplate and they helped Telex grow rapidly to become a major supplier of disk drives, tape drives and printers, all compatible with IBM computers. |
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http://www.disktrend.com/disk3.htm
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| | BRL Report 1961 |
| | The disk units are available with storage capacities of 5 million digits and 10 million digits and may be used either singly or in any combination of two to provide storage capacities of 5, 10, 15 and 20 million digits. | | | The system also has arithmetical and logical ability, punched card input, and both punched card and printed output. | | | BRL 1961, IBM 305 RAMAC, start page 0314 |
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http://ed-thelen.org/comp-hist/BRL61-ibm03.html
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| | [No title] |
| | Those supporting the new IBM RAMAC Virtual Array Storage Subsystem and its associated software product (IBM Extended Facilities Product). | | | Gain a basic understanding of the new IBM RAMAC Virtual Storage Array Subsystem and its associated software product; IBM Extended Facilities Product (IXFP), product number 5648-A17. | | | Identify the prerequisite software required to support the RAMAC Virtual Array Storage Subsystem and the IBM Extended Facilities Product |
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http://www.unicompincorp.com/es560.htm
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| | Vervante Books Etc -- IBM RAMAC 3 Array Storage |
| | Vervante Books Etc -- IBM RAMAC 3 Array Storage | | | This redbook is written for storage administrators, systems programmers, | | | enhancements that assist customers in implementing RAMAC 3 Array Storage |
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http://store.vervante.com/c/v/0738409774.html?pard=ibm
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| | Computergram International: Ibm Enhances Ramac, Ssa Disk Arrays |
| | Yesterday Big Blue made changes to its mainframe and open systems disk lines and started telling customers about future technology changes. | | | Computergram International: Ibm Enhances Ramac, Ssa Disk Arrays | | | The feature can also be used to move data between different RVA data farms, for example copying data from a production system to a data warehouse. |
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http://www.findarticles.com/p/articles/mi_m0CGN/is_3531/ai_53177185
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| | Ramac Users Rattled By IBM Deal |
| | IBM will change the products' names to IBM Ramac Virtual Array Storage, IBM Ramac Scalable Array Storage and IBM Ramac Electronic Array Storage. | | | In a deal that has thrown into question the future of IBM's Ramac disk storage product line, IBM said on June 10 that it will re-market mainframe storage devices from Storage Technology Corp. | | | "If Ramac was performing as well as the company says, there is no way IBM would have made such a deal,'' says Jim Rothnie, senior VP of marketing for EMC Corp. in Hopkinton, Mass., the direct-access storage device (DASD) market leader. |
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http://www.informationweek.com/584/84iutek.htm
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| | MIT RAMAC Migration Project |
| | IBM RAMAC DASD to IBM Enterprise Storage Server | | | Project Overview - A brief overview of the purpose and description of this project. | | | This site contains the project notebook for this work. |
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http://mitvma.mit.edu/~jad/ramacmig.html
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| | Computer History Museum - Timeline |
| | In this photograph, J. Felker (left) gives instructions to the TRADIC computer by means of a plug-in unit while J. Harris places numbers into the machine by flipping simple switches. | | | The IBM 350 disk file served as the storage component for the Random Access Method of Accounting and Control. | | | The era of magnetic disk storage dawned with IBM´s shipment of a 305 RAMAC to Zellerbach Paper in San Francisco. |
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http://www.computerhistory.org/timeline/timeline.php?timeline_category=cmpnt
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| | IBM Archives: IBM 305 RAMAC |
| | Introduced in 1956, the IBM 305 RAMAC (Random Access Memory Accounting System) was an electronic general purpose data processing machine that maintained business records on a real-time basis. | | | The 305 RAMAC was one of the last vacuum tube systems designed by IBM, and more than 1,000 of them were built before production ended in 1961. |
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http://www.ibm.com/ibm/history/exhibits/storage/storage_PH0305.html
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| | IBM Research Who we are History 1945-1998 |
| | Produced in San Jose, California, IBM's first hard disk stored about 2,000 bits of data per square inch and had a purchase price of about $10,000 per megabyte. | | | RAMAC (or Random Access Method of Accounting and Control) offers unprecedented performance by permitting random access to any of the million characters distributed over both sides of 50 two-foot-diameter disks. |
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http://www.research.ibm.com/about/past_history.shtml
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| | USING RAMAC VIRTUAL ARRAY - ORA 4225 WHEN SYSTEM FULL |
| | Following day the database was started again and showed no errors. | | | To my opinion this is an OS error but it seems important to share this info here as IBM is pushing the RAMAC Virtual Arrays. | | | It turned out that the Ramac system was full due to some management error. |
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http://dco-proxima.dco.pima.edu/oracle/bug/s482/b000076.htm
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| | IBM RAMAC Array Subsystem |
| | The IBM RAMAC Array Subsystem provides a high-performance, fault-tolerant, RAID 5 storage product. | | | The RAMAC Array Subsystem uses IBM's 3.5-inch 2.0 GB disk drives. | | | An areal density of 259.5 megabytes per square inch is achieved with IBM's industry-leading magnetoresistive head technology. |
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http://vm.mtsac.edu/info_tech/computer_svcs/data_center/RAMAC.HTML
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| | IBM uprates SAN kit with SSA disks and RAMAC |
| | The RAMAC Virtual Array (RVA) X82 has faster internal microprocessors and the effective cache increased up to 6GB, promising faster throughput of up to 50%. | | | IBM this week announced a range of SAN-based products, with new features including the ability to extend existing Serial Storage Architecture (SSA) based disk systems with additional SAN connectivity and management functions. | | | IBM also announced a higher performance and higher virtual capacity RAMAC Virtual Array for S/390, increasing performance by up to 50% and virtual addressing capability by 400%. |
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http://www.xephon.com/news/99050710.html
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| | IBM Redbooks RAMAC Virtual Array |
| | This redbook will describe the architecture, technology, design, and functional capabilities of the RAMAC Virtual Array. | | | to assist customers in implementing RAMAC Virtual Array. | | | The book provides guidance on capacity and performance |
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http://publib-b.boulder.ibm.com/Redbooks.nsf/RedbookAbstracts/sg244951.html
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| | RAMAC University - How it Works |
| | If this is your first RAMAC University course, start by answering "Yes" when asked if you want instructions on how to control your interactive course. | | | Downloading the player in advance will reduce waiting and give you assurance that you can play the course. | | | The instructions take only 90 seconds to view. |
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http://www.jobstudy.net/howitworks.htm
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| | Jim Porter |
| | My understanding, although I cannot document it, is that the very first disk drive is now in the Smithsonian, as an industrial historic relic. | | | This is only part of the first RAMAC being loaded for delivery. | | | This is the first disk drive in the world being loaded on the delivery truck. |
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http://www.iist.scu.edu/iist/100th/Progress/Porter/jimporter.htm
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| | ramac gpr GB |
| | Autostacking in the range 1-32768 for optimized speed performance | | | GROUDVISION : standard software is included with the new radar RAMAC GPR CU2 | | | Non-shielded antennas, are directly used with CU2 control unit, added with non-shielded electronics : |
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http://www.abem-france.com/ramacgpr_GB.htm
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| | RAMAC |
| | Membership Co-ordinator Jim Parker E-mail Jim if you would like a membership application or further information on RAMAC or it's Mentor Program. | | | This is done so the membership as well as the perspective member can meet and get to know each other. | | | RAMAC offers the AMA Intro - Pilot Program to interested perspective pilots who do not already have their AMA Coverage and would like to try Model Airplane Flying at one of our fields. |
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http://members.aol.com/Lecisron/ramac.html
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| | Roxbury Area Model Airplane Club |
| | Click here to view the our November 2004 newsletter in Adobe PDF Format. | | | New flyers are invited to bring their planes in process or completed for review by instructors. | | | View our upcoming events and find out when our next RAMAC meeting will be held. |
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http://www.ramac.org
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| | Energy Citations Database (ECD) Document #10125703 - Tomographic data developed using the ABEM RAMAC borehole ... |
| | Energy Citations Database (ECD) Document #10125703 - Tomographic data developed using the ABEM RAMAC borehole radar system at the Mixed Waste Landfill Integrated Demonstration | | | These tomograms clearly delineate areas of amplitude attenuation and residual time of arrival or slowness differences.^Plots for slowness were made using both the maximum and minimum of the first arrival pulse.^The data demonstrates that the ABEM RAMAC 60-MHz pulse sampling radar system can be used to collect usable data in a highly conductive environment. | | | Tomographic data developed using the ABEM RAMAC borehole radar system at the Mixed Waste Landfill Integrated Demonstration |
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http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=10125703
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| | RayCon |
| | X3M: New radar design for a more compact and user-friendly system. | | | Built-in auto stacking function ensures optimum data quality at maximum survey speed. | | | No fibre optic is required since the unit communicates directly with a laptop. |
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http://www.raycon.se/instrumentation.htm
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| | Ramac - Business to Business Expo Information |
| | The RAMAC Business Expo' has proven to be a very positive addition to our many functions and it is an excellent opportunity for our members to showcase their business products and services in a "business to business" format. | | | The show will again be held at Festival Hall, 5 Fifth St., Racine, which accommodates approximately 75 booths, so entries will be taken on a first come - first serve basis. | | | You won't want to miss this exciting and informative evening of fun and networking! |
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http://www.racinechamber.com/expo/expo.cfm
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