Accredited Standards Committee* X3, Information Processing Systems Doc
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Hard Disk Drive 1 Hard Disk Drive
Hard disk drive 1 Hard disk drive Hard disk drive A 2.5" SATA hard drive [1] Date invented 24 December 1954 </ref> Invented by IBM team led by Rey Johnson A hard disk drive (HDD) is a data storage device used for storing and retrieving digital information using rapidly rotating disks (platters) coated with magnetic material. An HDD retains its data even when powered off. Data is read in a random-access manner, meaning individual blocks of data can be stored or retrieved in any order rather than sequentially. An HDD consists of one or more rigid ("hard") rapidly rotating disks (platters) with magnetic heads arranged on a moving actuator arm to read and write data to the surfaces. A disassembled and labeled 1997 HDD. All Introduced by IBM in 1956, HDDs became the dominant secondary major components were placed on a mirror, which created the symmetrical reflections storage device for general purpose computers by the early 1960s. Continuously improved, HDDs have maintained this position into the modern era of servers and personal computers. More than 200 companies have produced HDD units, though most current units are manufactured by Seagate, Toshiba and Western Digital. Worldwide revenues for HDD shipments are expected to reach $33 billion in 2013, a decrease of approximately 12% from $37.8 billion in 2012. The primary characteristics of an HDD are its capacity and performance. Capacity is specified in unit prefixes corresponding to Overview of how an HDD functions powers of 1000: a 1-terabyte (TB) drive has a capacity of 1,000 gigabytes (GB; where 1 gigabyte = 1 billion bytes). -
Non-IBM Parts Catalog Book Cover COVER Book Cover ------Non-IBM Parts Catalog
Non-IBM Parts Catalog Book Cover COVER Book Cover -------------------------------------------------------------------------- Non-IBM Parts Catalog Document Number SA38-0041-04 -------------------------------------------------------------------------- ¦ Copyright IBM Corp. 1989, 1992 COVER - 1 Non-IBM Parts Catalog Notices NOTICES Notices This Feature pamphlet is a component of PS/2 Bill of Forms number SB0F-2480-00. ¦ Copyright IBM Corp. 1989, 1992 NOTICES - 1 Non-IBM Parts Catalog Edition Notice EDITION Edition Notice Fifth Edition (November 1992) This major revision obsoletes SA38-0041-03. The drawings and specifications contained herein shall not be reproduced in whole or in part without written permission. IBM has prepared this publication for the use of customer engineers in the installation, maintenance, or repair of the specific machines indicated. IBM makes no representations that it is suitable for any other purpose. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time. Requests for copies of IBM publications should be made to your IBM representative or to the IBM branch office servicing your locality. Address comments concerning the content of this publication to IBM Corporation, Dept. 90A, Bldg. 234-2, Internal Zip 4307, 951 NW 51st St., Boca Raton, Florida, U.S.A. 33432. IBM may use or distribute whatever information you supply in any way it believes appropriate without incurring any obligation to you. ¦ Copyright International Business Machines Corporation 1989, 1992. All rights reserved. -
Manufacturer Codes Listing
Manufacturer Codes Listing Code Manufacturer Name AAG At-A-Glance AAM Aladdin Systems - Academic AAN Aaron Rents AAP All About Paper AAR AARCO Products AAT Andover Advanced Technologies, Inc. ABA Absolute Battery ABC ABCO Office Furniture, Inc. ABD A.B. Dick ABE Able Cable ABF Adams Business Forms, Inc. ABI American Business Information ABL Amber Lee Co. ABN ABN Amro ABP Abisco Products ABS A.B.S. ABU Abus Lock Co. ABX Artbin, Div. of Flambeau Products ACA Acer America Corp. ACC ACCO USA ACD ALMA ACE Ace Fastener Co. ACF Accufax ACG ABC Compounding Co., Inc. ACH Attachmate Corp. ACI ACI Action Communications ACL ACL, Inc. ACM Acme United Corp. ACN Acorn Office Products ACO Amco Corp. ACP Acroprint Time Recorder Co. ACR Acura ACS ACS Wireless, Inc. ACT Advance Cartridge Technology ACU ACI US, Inc. ACV Active Voice ADA Adaptive Micro Systems, Inc. ADB Adobe ADE Adecco ADI ADI Systems, Inc. ADJ Adjustable Shelving Products ADK ADC Kentrox ADL Adler-Royal ADM Adams Mfg. ADN Addonicks Technologies ADO Adesso Manufacturer Codes Listing Page 1 The Systems House October 2001 Code Manufacturer Name ADP Adaptec MDP Latin America ADR Andrew's Office Products ADS Advanced Digital System ADT Addtron Technology Co., Ltd. ADV Advantage AEC AEC Software AEL Andrea Electronics` AEP AMREP AER Aero Shield AES Advanced Electronic Support Products AET Aetna Coating, Inc. AFC AF CLeaning Products AFI Arbuckle Foods Int'l AFP Affiliated Paper Co. AGB Art Guild Binders, Inc. AGE Agency Plus AGF Agfa Software AGI Accel Graphics, Inc. AGL Angola Wire Products AGO Allegro AIC Amherst-Merritt Int'l. -
X3T9.2 Minutes June 22-23, 1992 -- Bloomington, MN X3T9.2/92-144
X3T9.2 Minutes June 22-23, 1992 -- Bloomington, MN X3T9.2/92-144 To: Membership of X3T9.2 X3T9.2/92-144R0 From: Lawrence J. Lamers/John B. Lohmeyer Date: June 26, 1992 Subject: Minutes of X3T9.2 Plenary Meeting #100 Agenda -- X3T9.2 Meeting #100 Bloomington, MN -- June 22-23, 1992 1. Opening Remarks 2. Approval of Agenda 3. Attendance and Membership 3.1 Roll Call of Members in Jeopardy 4. Approval of Minutes - April Meeting St. Petersburg Beach, FL (92-095 R2) 5. Document Distribution 6. Liaison Reports and Call for Patents 6.1 ISO [Milligan] 6.2 IT8 [Lohmeyer] 6.3 Fibre Channel [Allan] 6.4 Small Form Factor Industry Group [Allan] 6.5 IEEE P1394 [Smyers] 6.6 IEEE P1285 Status 6.7 Call for Patents 7. Review of Old Action Items 8. Working Group and/or Project Status Reports 8.1 AT Attachment Status (ATA) 8.2 Directly-Addressable Device Interface (DADI) 8.3 SCSI Common Access Method (CAM) 8.4 SCSI General Working Group (X3T9.2/92-126) 8.5 SCSI-2 Status 8.6 SCSI-3 Parallel Interface (SPI) Status [Spence/Lamers] 8.7 SCSI-3 Interlocked Protocol (SIP) Status [Lamers] 8.8 SCSI-3 Packetized Protocol (SPP) Status [Stephens] 8.9 SCSI-3 Command Set (SCS) Status [Lamers, Stephens, Monia] 8.10 ATA Extensions 9. Old Business 9.1 Enhancement of Sequential Access for Medium Changers (92-6) [Jones] 9.2 Discussion of Alternate P Cable Connector(s) for SCSI-3 {Monday 3:30} 9.3 Proposal to Support Media Interchange (92-56) [Wilhelm] 9.4 PR Comments on BSR X3.221-199x, ATA (AT Attachment) 9.5 SCSI-3 Queuing Issues (91-98R8) [Penokie] 9.6 Change INQUIRY Command (92-85) [Penokie] 10.