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Topic: IBM 1311

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	IBM 1620
		In 1958 IBM assembled a team at the Poughkeepsie, New York development laboratory to study the "small scientific market".
		IBM could only build one of the two and the Poughkeepsie proposal won because "the San Jose version is top of the line and not expandable, while your proposal has all kinds of expansion capability - never offer a machine that cannot be expanded".
		Following announcement of the IBM 1620 on October 22, 1959, due to an internal reorganization of IBM, it was decided to transfer the computer from the Data Processing Division at Poughkeepsie (large scale mainframe computers only) to the General Products Division at San Jose (small computers and support products only) for manufacturing.
	www.ebroadcast.com.au /lookup/encyclopedia/ib/IBM_1620.html (1012 words)

	IBM Archives: IBM 1311 disk storage drive (Site not responding. Last check: 2007-10-14)
		Developers of the 1311 engineered twice the recording density of the IBM 1301 Disk Storage Unit by reducing the space between the head and the disk by about a factor of two.
		The 1311 used the IBM Disk Pack (later designated the IBM 1316), an interchangeable package containing six 14-inch-diameter disks in a four-inch stack, weighing 10 pounds (seen above in the man's left hand).
		The first host mainframes for the 1311 were the IBM 1401 Data Processing System, 1440 Data Processing System, 1620 Data Processing System and 1710 Control System.
	www-03.ibm.com /ibm/history/exhibits/storage/storage_1311.html (317 words)

	Early IBM disk storage - Wikipedia, the free encyclopedia
		The IBM 355 was announced on September 14, 1956 as an addition to the popular IBM 650.
		A major advance over the IBM 350 and IBM 1405 was the use of a separate arm and head for each recording surface, with all the arms moving in and out together like a big comb.
		The IBM 1311 Disk Storage Drive was announced on October 11, 1962 and was designed for use with several medium-scale business and scientific computers.
	en.wikipedia.org /wiki/IBM_1311 (2544 words)

	History of Storage -- USByte (Site not responding. Last check: 2007-10-14)
		IBM introduced the first storage unit with removable disks (IBM 1311), effectively ending the era of the punched-cards.
		IBM decided to discontinue the development of magnetic core memory in favor of volatile monolithic semiconductor memory chips with much faster data access and lower cost.
		IBM demonstrated the ability to write 100 GB of data on a single LTO (linear tape open) tape cartridge, the highest tape cartridge capacity in the industry at the time.
	www.usbyte.com /common/history_of_storage.htm (1109 words)

	IBM Archives: IBM 1311 head assembly (Site not responding. Last check: 2007-10-14)
		IBM engineer Joseph Sheredy examines a head assembly used in the IBM 1311 Disk Storage Drive.
		Ten heads in each 1311 were used to seek, read and write information on six magnetic disks.
		Up to five 1311 drives could be attached to an IBM 1440 Data Processing System.
	www-03.ibm.com /ibm/history/exhibits/storage/storage_PH1311B.html (77 words)

	CalComp vs. IBM Records
		The series of Trial Memoranda issued prior to the trial relates to IBM's attempt to issue a counterclaim of damage, prevent the trial from being heard before a jury and move for a summary judgement.
		IBM's memorandum in support of its motion for a directed verdict and its motion to dismiss, Feb 9, 1977.
		Included in the IBM exhibits are two sets of records represented by Defendant's exhibits 1311, 3340 and 3381.
	www.cbi.umn.edu /collections/inv/cbi00002.html (1756 words)

	The Computer Age
		IBM had sent Reynold Johnson to San Jose, CA in 1952 with a direction to "produce something profitable".
		Mainframe computer installations often had multiple 1311 drives, allowing rapid and reliable access to data, although the drive was initially introduced for use with IBM's smaller systems such as the 1401 and 1620.
		The "Minnow" Flexible Disk Drive, first manufactured by IBM in 1970 (and shipped in 1971), was conceived and developed by David L. Noble and his team of IBM engineers and technicians.
	www.moah.org /exhibits/archives/brains/computerage.html (4346 words)

	Chronology of IBM Personal Computers (1987-1991)
		IBM introduces its Micro Channel Architecture (MCA) on its Model 50 and higher of the PS/2 line.
		IBM announces the PS/2 Model 50 Z. IBM announces the PS/2 Model 25 LS.
		It is the first chip produced under an agreement between Intel and IBM, for IBM to use in their own systems.
	www.islandnet.com /~kpolsson/ibmpc/ibm1987.htm (1511 words)

	CIOL : News : Fifty years of storage: IBM: history of storage (Site not responding. Last check: 2007-10-14)
		It all started with the research on direct processing solutions at the IBM Lab in San Jose, California, resulting in the shipment of the IBM System 305 and the first hard disk drive, the Random Access Method of Accounting and Control (RAMAC) on September 13, 1956.
		RAMAC used memory disks coated with magnetic iron oxide paint — similar to that used on San Francisco’s Golden Gate Bridge — and held a total of 5 megabytes (MB) of data on fifty 24-inch platters mounted on a rotating spindle.
		In the initial years, IBM kept on introducing new disk storage units and some of them include IBM 1301 introduced in 1961.
	www.ciol.com /content/news/2006/106091204.asp (660 words)

	Station Information - List of IBM products
		IBM 26 - Electronic (tube) punch printing, BCD zone codes
		IBM 652 - Disk and Magnetic Tape Control Unit
		IBM 740 - Cathode Ray Tube Output Recorder
	www.stationinformation.com /encyclopedia/l/li/list_of_ibm_products.html (76 words)

	CS111 - Introduction to Computer Science
		IBM ships its first transistorized, or second generation, computers, the 1620 and 1790.
		IBM reports its worst year in history with a loss of $4.97B on revenues of $64.5B.
		IBM chairman John Akers resigns and after the most executive search publicity ever, Louis Gerstner becomes the new chairman and CEO.
	www.cs.gordon.edu /local/courses/cs212/chronology.php (4050 words)

	[No title]
		As a result, 1311 sectors are 106 characters long: 6 address characters and 100 data characters.
		If the 1311 has not been formatted, the addresses are blanks and are synthesized, if needed, based on the sector number.
		The 1311 also supports two modes of operation: move mode and load mode.
	ed-thelen.org /1401Project/i1401_doc_version33-0.html (1170 words)

	The Linux Beacon--The Disk Drive at 50: Still Spinning
		IBM's researchers initially chose a drum for RAMAC instead of a disk platter (which was easier to manufacture) because it was stiffer and therefore it was easier to maintain a consistent space between the drum and the head that read data off the drum or magnetically encoded it on the drum.
		RAMAC, which was invented in IBM's San Jose, California, disk labs, was noteworthy not because of its data density, but because it was the first movable-head data-storage device.
		Disk drives of the early 1960s--take the IBM 1311, for example--had a capacity of 3 MB stored on 50 tracks, with an average access time of 150 milliseconds and a spin rate of 1,500 RPM.
	www.itjungle.com /tlb/tlb091906-story03.html (1623 words)

	Roxen Community: RFC 508 REAL-TIME DATA TRANSMISSION ON THE ARPANET ()
		This particular data path very nearly duplicates the path which might be taken if real-time devices were attached to large scale host computers operating in their normal mode (usually timesharing).
		It has associated hardware such as a card reader, two IBM 1311 disk drives, a drum storage unit, A/D and D/A converters, Teletype, Tektronix 611 storage display unit, OLS keyboard, and a connection to an IBM 1800 computer.
		Routines were written for both the IBM 360 and the SEL to handle the transfer of data between the two computers and to enable the SEL to send an "attention interrupt" to the IBM 360.
	community.roxen.com /developers/idocs/rfc/rfc508.html (2027 words)

	[No title]
		1953: First magnetic tape device, the IBM 726, is introduced with 100 character-per-inch density and 75 inches-per-second speed.
		This transistorized computer with 64-bit data paths is the first to use eight-bit bytes; it remains operational until l971.
		IBM merges with Rolm Corp., which becomes a telecommunications subsidiary.
	craigcunningham.com /nlu/cts/chron.htm (4485 words)

	BRL Report 1964
		IBM Console, Model 3, used to enter or obtain (print) data, can also be attached to terminal equipment, thereby providing buffered, remote communication ability.
		IBM 1404 Printer, used in lieu of 1403, has all continuous form printing functions of 1403, plus a dual channel cut-card feeding mechanism.
		IBM Phase Encoding Provides highly reliable method of bit encoding on Hypertape so all single-bit and most double-bit errors can be corrected.
	ed-thelen.org /comp-hist/BRL64-i.html (7422 words)

	[No title]
		The IBM CERT system was based on model presented at those workshops.
		This document describes how IBM implemented the CERT concept to achieve central reporting and control of incidents occurring within IBM.
		The first question we asked was whether the focus of the activity should include micros, minis, and mainframes, or be limited to only the "afflicted" environment, the microprocessor environment for now.
	csrc.nist.gov /publications/secpubs/fedeli.txt (3555 words)

	Subject: IBM 1620 SIMULATOR & IBM 1316 DISK STORAGE PACKS (Site not responding. Last check: 2007-10-14)
		The IBM 1316 Disk Storage Pack, which stores 2 million digits or 1 million alphameric characters, was used at the University on a IBM 1311 Disk Storage Drive, Model 3.
		The IBM 1316 Disk Pack was easily removed and replaced with another 1316 Disk Pack when used on the 1311 Disk Drive.
		This Simulator was written by IBM in the Basic Assembler Language (BAL) for the IBM 360/370 Computer Systems and simulated all the IBM 1620 machine language instructions.
	hissa.nist.gov /mlists/ibm1620/199901/19990119-4.html (272 words)

	Archive of IBM 1620 Restoration Mailing List
		The mailing list is for communication between people working to restore an IBM 1620 to working order.
		The Computer Museum History Center has a web site on the IBM 1620 Data Processing System.
		IBM 1620 Restoration Team Archive created December 4, 1998...
	hissa.nist.gov /mlists/ibm1620/199901-month.html (1723 words)

	Circuit Cellar - Digital Library - 117 Fred Eady (Site not responding. Last check: 2007-10-14)
		By the 1960s, IBM introduced the first storage unit with removable disks, the IBM 1311.
		The IBM 3735 was a prelude to the IBM 3340, which was the first disk drive to use low-mass heads, lubricated disks, and sealed assembly.
		In September 1998, IBM developed the technology to build a 1” hard disk drive platter, which would be introduced in 1999 as the Microdrive, the world’s smallest hard disk drive—and I have one!
	www.circuitcellar.com /library/print/0400/Eady-117/index.htm (1089 words)

	ACME pictures
		These photographs were extracted from a 16mm promotional film made in 1969 by an IBM division supporting Laboratory Computing, under the leadership of Ray Edwards.
		The film was converted to a DVD format, and the snapshots were extracted by made by Gio Wiederhold.
		IBM 1316 5 disk packs for the 1311 drive, at 2MB each.
	www-db.stanford.edu /pub/voy/museum/pictures/ACMEpics.html (108 words)

	[No title] (Site not responding. Last check: 2007-10-14)
		1953: First magnetic tape device, the IBM 726, is introduced with100 character-per-inch density and 75 inches-per-second speed.
		This transistorizedcomputer with 64-bit data paths is the first to use eight-bitbytes; it remains operational until l971.
		IBM mergeswith Rolm Corp., which becomes a telecommunications subsidiary.
	www.humboldt.edu /~sms17/480/lect.01/chron.htm (4199 words)

	What is this thing? - Topic Powered by eve community
		It is not a whole disk drive it is an IBM HDA (head/drive assembly) from a mainframe disk subsystem.
		This was a standard disk platter size from the time of IBM's 1311, 2311, and 2314 "disk pack" drives (mid Sixties) until eight inch platters enjoyed a brief vogue in the late 80s/early 90s (IIRC).
		I haven't been able to easily match an FRU (field replaceable unit) number against the part number displayed on the sticker, but my "I'd bet a beer on it" guess is a 3380.
	episteme.arstechnica.com /eve/ubb.x/a/tpc/f/24609792/m/679005083731 (884 words)

	IBM timeline (Site not responding. Last check: 2007-10-14)
		1961: time-sharing on IBM 709 and 7090 [cite]
		1981: 12Aug: IBM announces PC [cite] choice of $40 PC-DOS or $240 CP/M-86 [cite] 4.77MHz 8088, 64k, floppy drive, for $3000 [cite] Gates & Allen are not invited to the rollout [cite]
		IBM version released sooner than Tandy (SCO) but buggier w/bad docs [cite]
	www.robotwisdom.com /linux/ibm.html (1485 words)

	ECL 187 (Site not responding. Last check: 2007-10-14)
		A levelling screw for the IBM 1311 disk storage drive was assigned to students in an IBM Value Engineering Seminar.
		The students applied their newly learned techniques to redesign the levelling screw to reduce cost while maintaining function.
		Their solution was so successful that it was put into production on many IBM systems resulting in over one million dollars in savings.
	www.civeng.carleton.ca /ECL/abstracts/ecl187.html (81 words)

	[No title]
		1944: Mark I (IBM ASCC) is completed, based on the work of Professor Howard H. Aiken at Harvard and IBM.
		1971: Floppy disks are introduced to load the IBM 370 microcode.
		1993: IBM announces OS/2 for Windows, which upgrades the Windows environment to OS/2.
	www.cyberstreet.com /hcs/museum/chron.htm (4457 words)

	[No title] (Site not responding. Last check: 2007-10-14)
		To start out the 1960’s, Leo Esaki, IBM scientist, co-invented the diode laser.
		IBM also invented the 1311 Disk pack drive.
		This is the first disk drive with a removable disk pack, and also the first using 14" diameter disks.
	pigseye.kennesaw.edu /~astowell/index6.htm (240 words)

	[No title]
		Also included is information about IBM's and CalComp's business practices, the practices of other computer companies in the late 1960s and early 1970s, and the "plug compatible" computer business based on IBM computer systems.
		CalComp vs. IBM Records (CBI 2), Charles Babbage Institute, University of Minnesota, Minneapolis.
		IBM's memorandum in support of its motion for a directed verdict and its motion to dismiss,
	special.lib.umn.edu /findaid/ead/cbi/cbi00002.xml (1815 words)

	Computer history, Chronology of Computer, History computer - Laynetworks
		1964 - April - IBM announces the System 360, an upward compatible, combination - scientific / business computer(by the mid-80’s the IBM 360 will have generated over $100 billion in revenues).
		Alan Shugart, IBM, delivers practical use of the 8" floppy disk on the Displaywriter dedicated word processor.
		US Dept of Defense announces the Ada language after five years of successive refinements - the high-order language is widely criticized for its complexity.
	www.laynetworks.com /history3.htm (2892 words)

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