A Look at Laptop History
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The Portable Computing Quest
Chapter 1 The Portable Computing Quest In This Chapter ▶ Understanding portable computing ▶ Reviewing laptop history ▶ Recognizing the Tablet PC variation ▶ Getting to know the netbook ▶ Deciding whether you need a laptop figure, sometime a long time ago, one early proto-nerd had an idea. IWearing his thick glasses and a white lab coat, he stared at the large, vacuum tube monster he was tending. He wondered what it would be like to put wheels on the six-ton beast. What if they could wheel it outside and work in the sun? It was a crazy idea, yet it was the spark of a desire. Today that spark has flared into a full-blown portable computing industry. The result is the laptop, Tablet PC, or netbook computer you have in your lap, or which your lap is longing for. It’s been a long road — this chapter tells you about the journey by explaining the history of the portable computing quest. Laptop History You can’t make something portable simply by bolting a handle to it. Sure, it pleasesCOPYRIGHTED the marketing folk who understand MATERIAL that portability is a desirable trait: Put a handle on that 25-pound microwave oven and it’s suddenly “por- table.” You could put a handle on a hippopotamus and call it portable, but the thing already has legs, so what’s the point? My point is that true portability implies that a gizmo has at least these three characteristics: ✓ Lightweight ✓ No power cord ✓ Practical 005_578292-ch01.indd5_578292-ch01.indd 7 112/23/092/23/09 99:11:11 PPMM 8 Part I: The Laptop Shall Set You Free The ancient portable computer Long before people marveled over (solar pow- kids now learn to use the abacus in elementary ered) credit-card-size calculators, there existed school. -
Green Destiny: a 240-Node Compute Cluster in One Cubic Meter
Green Destiny: A 240-Node Compute Cluster in One Cubic Meter Wu-chun (Wu) Feng Research & Development in Advanced Network Technology (RADIANT) Computer & Computational Sciences Division Los Alamos National Laboratory LA-UR 02-6127 Outline Where is Supercomputing? Architectures from the Top 500. Evaluating Supercomputers Metrics: Performance & Price/Performance An Alternative Flavor of Supercomputing Supercomputing in Small Spaces Æ Bladed Beowulf Architecture of a Bladed Beowulf Performance Metrics Benchmark Results Discussion & Status Conclusion Acknowledgements & Media Coverage Wu-chun Feng http://www.lanl.gov/radiant [email protected] http://sss.lanl.gov Flavors of Supercomputing (Picture Source: Thomas Sterling, Caltech & NASA JPL) Wu-chun Feng http://www.lanl.gov/radiant [email protected] http://sss.lanl.gov 500 400 SIMD Architectures from the 300 Top 500 Supercomputer List 200 100 0 ProcessorSingle Wu-chun Feng [email protected] Jun-93 Nov-93 Jun-94 MPP Nov-94 Jun-95 Nov-95 Jun-96 Constellation SMP Nov-96 Cluster Jun-97 http://www.lanl.gov/radiant Nov-97 http://sss.lanl.gov Jun-98 Nov-98 Jun-99 Nov-99 Jun-00 Nov-00 Jun-01 Nov-01 Jun-02 Metrics for Evaluating Supercomputers Performance Metric: Floating-Operations Per Second (FLOPS) Example: Japanese Earth Simulator Price/Performance Æ Cost Efficiency Metric: Cost / FLOPS Examples: SuperMike, GRAPE-5, Avalon. Wu-chun Feng http://www.lanl.gov/radiant [email protected] http://sss.lanl.gov Performance (At Any Cost) Japanese Earth Simulator ($400M) Performance Price/Perf Peak 40.00 Tflop $10.00/Mflop Linpack 35.86 Tflop $11.15/Mflop n-Body 29.50 Tflop $13.56/Mflop Climate 26.58 Tflop $15.05/Mflop Turbulence 16.40 Tflop $24.39/Mflop Fusion 14.90 Tflop $26.85/Mflop Wu-chun Feng http://www.lanl.gov/radiant [email protected] http://sss.lanl.gov Price/Performance Cost Efficiency LSU’s SuperMike Performance Price/Perf (2002: $2.8M) Linpack 2210 Gflops $1.27/Mflop U. -
A275 User Guide
A275 User Guide Note: Before using this information and the product it supports, ensure that you read and understand the following: • Safety and Warranty Guide • Setup Guide • “Important safety information” on page v Lenovo® makes constant improvement on the documentation of your computer, including this User Guide. To get all the latest documents, go to: https://support.lenovo.com Second Edition (February 2018) © Copyright Lenovo 2017, 2018. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS- 35F-05925. Contents Important safety information . v Using the ThinkPad pointing device . 20 Read this first. v ThinkPad pointing device overview . 20 Important information about using your computer . v Using the TrackPoint pointing device. 21 Conditions that require immediate action . vii Using the trackpad. 22 Service and upgrades . viii Using the trackpad touch gestures . 23 Power cords and power adapters . ix Customizing the ThinkPad pointing device . 24 Extension cords and related devices. ix Replacing the cap on the pointing stick . 24 Plugs and outlets . x Power management . 25 Power supply statement . x Using the ac power adapter . 25 External devices . xi Using the battery . 25 General battery notice . xi Managing the battery power . 27 Notice for removable rechargeable battery . xi Power-saving modes . 27 Notice for built-in rechargeable battery. xii Cabled Ethernet connections . 28 Notice for non-rechargeable coin-cell battery . xii Wireless connections . 28 Heat and product ventilation . xiii Using the wireless-LAN connection . 28 Electrical current safety information . -
United States Patent (19) 11 Patent Number: 4,858,162 Kieffer Et Al
United States Patent (19) 11 Patent Number: 4,858,162 Kieffer et al. (45) Date of Patent: Aug. 15, 1989 54 METHOD AND APPARATUS USED IN MOUNTING EXPANSON CARDS OTHER PUBLICATIONS Features Illustration, Compaq Computer Company. 75) Inventors: Thomas M. Kieffer, St. Louis Park; 4-page brochure entitled Toshiba Portable Personal David J. Gaasedelen, Golden Valley, Computer T3100e (Exhibit A) Form No. BT3100e both of Minn. 11/88. Primary Examiner-Andrew J. James 73) Assignee: Connect Computer Company, Inc., Assistant Examiner-David Soltz Minneapolis, Minn. Attorney, Agent, or Firm-Merchant, Gould, Smith, Edell, Welter & Schmidt 21 Appl. No.: 90,941 57 ABSTRACT (22 Filed: Aug. 28, 1987 An attachment for a portable computer comprising a rigid case having an interface card that is adapted to 51) Int. Cl." ......................... G06F1/00; H05K 5/00; attach to the portable computer's expansion slot at one HOSK 7/16 end and is adapted to attach to a standard PC expansion 52 U.S. C. ................................ 364/708; 364/709.01 card at the other end. The case has room to insert a 58) Field of Search ................................ 364/708, 709 standard expansion card of length or less. The case is sufficiently small that it may be attached to the bottom 56) References Cited of the portable computer and still fit inside the original carrying case. U.S. PATENT DOCUMENTS 4,530,066 7/1985 Ohwaki ............................... 364/708 10 Claims, 4 Drawing Sheets U.S. Patent Aug. 15, 1989 Sheet 1 of 4 4,858,162 FG. 4 O5 O9 f - - - - IILuse S 4O2 4O7 A No. -
KAYPRO II THEORY of OPERATION by Dana Cotant Micro Cornucopia P.O
KAYPRO 4 & KAYPRO II THEORY OF OPERATION By Dana Cotant Micro Cornucopia P.O. Box 223 — Bend, OR 97709 CPU VIDEO VIDEO RAM ADDRESS DISPLAY CHARACTER DRIVER MULTIPLEXING BLANKING FLOPPY GENERATION DISK C 0 CLOCKS N VIDEO T ADDRESSING R MAIN VIDEO 0 OP L MEMORY RAM PARALLEL PORTS VIDEO CLOCKS DATA SYSTEM SERIAL CONTROL PARALLEL PORTS PORT DATA ADDRESS PORT SE LECTION CONTROL KAYPRO II BLOCK DIAGRAM cessing unit), video, and 1/0 (input/output). Each section begins with its own block diagram. INTRODUCTION The block diagrams show major subdivisions in the section as separate blocks. The perimeter of each block surrounds the approx- imate area that the circuit occupies on the schematic. The blocks are arranged so their grid coordinates correspond to the coordinates of the related circuitry. The text that follows the block diagram describes the parts and signals responsible for the each circuit's function. This theory of operation is designed to help you use Micro Cor- Where the circuits have been modified since the KayPro was in- nucopia's KayPro schematic and to help you better understand the troduced, both circuit forms are described. system. We assume you have a basic understanding of digital circuits, Following the section description is a list of all integrated circuits but we also do our best to define all of the abbreviated symbols used in that section. (alphabet soup) for those of you whose command of computerese is a A star following a signal label indicates that the signal is active low. bit weak. For example, MREQ* is active low, hut DRQ is active high. -
Evo Notebook N600c Series
229045-002.book Page 1 Friday, September 21, 2001 11:16 AM b Hardware Guide Evo Notebook N600c Series Document Part Number: 229045-002 November 2001 This guide identifies computer hardware features and provides procedures for using them. It also includes instructions for setting up the computer, information about connecting external devices, and computer specifications. 229045-002.book Page 2 Friday, September 21, 2001 11:16 AM © 2001 Compaq Computer Corporation Compaq and the Compaq logo Registered in U. S. Patent and Trademark Office. Evo is a trademark of Compaq Information Technologies Group, L.P. Microsoft, MS-DOS, Windows, Windows NT are trademarks of Microsoft Corporation. All other product names mentioned herein may be trademarks of their respective companies. Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided “as is” without warranty of any kind and is subject to change without notice. The warranties for Compaq products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty. Hardware Guide Second Edition November 2001 First Edition June 2001 Document Part Number: 229045-002 229045-002.book Page iii Friday, September 21, 2001 11:16 AM Contents 1 Hardware and Software Setup Setting Up the Hardware. 1–1 Setting Up the Software . 1–4 Installing Optional Applications. 1–4 After Software Setup . 1–5 2 A Look at the Computer Display Components . 2–1 Pointing Device Components (Pointing Stick Models) . 2–2 Pointing Device Components (TouchPad Models). 2–3 Pointing Device Components (Dual Models) . -
Service Manual
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Shiffman 120, 122, 123, 125, 201, 202, 217 Classroom Instructions
Shiffman 120, 122, 123, 125, 201, 202, 217 (TEC classrooms – level B) No Access Codes Needed. These rooms utilize ceiling-mounted projectors, focused on wall-mounted pull down screens. Displaying Video or Computer Sources 1. At the Instructor Station. Push DOWN on the black system controller to access controls. Touch the screen to begin. 2. Press the PC (or any source) button to turn on the display system. The projector will take over a minute to warm up. No controls will function during warm up. 3. After the warm up, you can select another source using the appropriate buttons. (Buttons illuminate when active.) It’s recommended to wait a few seconds between input selections. • PC will display the installed Instructor PC. There are courtesy USB ports on the front of the PC. • LAPTOP will open another page, where you can select the VGA cable w/audio or the Digital HDMI cable as your laptop source. These cables are provided at the instructor station. Beyond the buttons, the system will attempt to auto-detect, and switch to a laptop when properly connected. Users must provide their MAC & DisplayPort adapters. • DVD selects the DVD player, stored at the Instructor Station. A disc control page will appear on the touch panel allowing you to control the player. • If a VHS player exists in your room, a VCR button will appear as a source on the touch panel. Press VCR to select. If there is no VHS player, contact Media Technology Services (MTS: 781- 736-4632) to request a temporary unit. Legacy VHS stock is declining, and this is based on inventory availability. -
Macintosh Portable
K Service Source Macintosh Portable K Service Source Basics Macintosh Portable Basics Overview - 1 Overview This manual contains complete repair procedures for the Macintosh Portable shown at left. Figure: Macintosh Portable K Service Source Specifications Macintosh Portable Specifications Processor - 1 Processor CPU Motorola 68HC000, 16-bit CMOS microprocessor 15.6672 MHz Addressing 32-bit internal registers 24-bit address bus 16-bit data bus Wait States 1 (static logic board) 10 (pseudostatic logic board) Specifications Memory - 2 Memory RAM 1 MB using thirty-two 32K by 8-bit static RAM chips; 100 ns access time; addressing supports up to 9 MB Expandable to 2 MB with optional 1 MB RAM expansion card Expandable to 4 MB with optional 3 MB RAM expansion card (backlit model) ROM 256K using two 128K by 8-bit devices; 150 ns access time; addressing supports up to 4 MB PRAM 128 bytes of system parameter memory VRAM 32K of static video display memory Specifications Disk Storage - 3 Disk Storage Floppy Drive Internal 1.4 MB floppy drive Hard Drive Internal 40 MB hard drive (optional) Specifications I/O Interfaces - 4 I/O Interfaces Floppy Drive DB-19 connector Supports Macintosh 800K Disk Drive, Apple 3.5 Drive, Apple SuperDrive, and Apple Hard Disk 20 SCSI 1.5 MB/second transfer rate Supports a maximum of eight devices Apple Desktop Bus Low-speed serial interface Supports optional low-power mouse Serial Two RS-422 serial ports; mini DIN-8 connectors Modem Phone jack for optional external modem Specifications I/O Interfaces - 5 Power Adapter -
Review Dell Latitude D430 Subnotebook - Notebookcheck.Net Reviews Page 1 of 5
Review Dell Latitude D430 Subnotebook - Notebookcheck.net Reviews Page 1 of 5 Home News Reviews FAQ / Tips / Technics Purchase Consultation Library Search Jobs Contact Review Dell Latitude D430 Subnotebook Road Warrior. The Dell Latitude D430 proves to be an exemplary companion in our review. The up to now smallest no the Latitude series is quiet, compact, light, and its workmanship is good. The runtime of the small 42 Wh is due to special energy-saving components up to 6 hours. Despite being equipped with low-energy com the frugal Core 2 Duo processor with 1.2 GHz clock rate combined with very fast SSD hard disk is suffic powerful for daily business. Reviewed: Dell Latitude D430 Subnotebook Notebook specifications Dell Latitude D430 :: Processor Intel Core 2 Duo U7600 1.2 GHz (Intel Core 2 Duo) Working for Notebookcheck :: Mainboard Are you a loyal reader of notebookcheck? Are you the one Intel 945GMS all your friends turn to when they want to buy a laptop or :: Memory tablet-PC? Are you a techie who knows how to write? 1024 MB, PC2-4200, 266 MHz Case Then join our Team! :: Graphics adapter The 12 inch Dell Latitude D430 by Dell, an American direct shipper, is up to now the smallest notebook Intel Graphics Media Accelerator Especially wanted: Latitude series. It was especially designed for business customers. So, the choice of forms and colou (GMA) 950 Senior Editor - Details here German-English-Translator - Details here business-like too. Bright grey and black dominate the look of this light portable computer, which weigh :: Display 1.5 kg. -
1985 1995 the Evolution of Mobile Entertainment
Ask the expert The evolution of mobile entertainment Today’s PC users look at the “fun” side of computing when deciding about their next computer. In fact, today’s notebook users see “mobile entertainment” as a given criteria for any new machine. They expect to be able to play games, listen to music or watch DVD movies on their notebooks. But a mere 20 years ago, “mobile entertainment” as we know it didn’t exist. This feature will look at the major milestones that helped turn today’s mobile computers into “mobile Mobile gaming – The Satellite P30 from 2003 could show 3D games on its entertainers”. The pinnacle of this development can be seen in the Qosmio own highresolution display. Via an S video connection to an external 40 AV notebook PC. inch plasma display, it was also possible to share the excitement. had just been ratified in 1984 and DVD was still a decade Flying high in the future. In 1985, when Toshiba launched the T1100, it was I’ve got the music in me considered a breakthough in terms of mobile working. It By 1995, the world of mobile computers had changed was the world’s first IBMcompatible considerably. Not only had image quality on notebooks laptop computer and the first machine 1985 improved from reflective black and to include a basic set of features that white LCDs to true colour (16.7 million would set the norm for portable computers in coming years: 1995 colours) TFT active matrix screens but it ran off internal rechargeable batteries, had an LCD also the audioout port and builtin speakers had become screen, a 3.5inch floppy disk drive and it was IBM standard features. -
Securing and Managing Wearables in the Enterprise
White Paper: Securing and Managing Wearables in the Enterprise Streamline deployment and protect smartwatch data with Samsung Knox Configure White Paper: Securing and Managing Wearables in the Enterprise 2 Introduction: Smartwatches in the Enterprise As the wearable device market heats up, wrist-worn devices Industries as varied as healthcare, such as smartwatches are leading the pack. According to CCS Insight, forecasts for global sales of smart wearable devices finance, energy, transportation, will grow strongly over the next five years, with the global public safety, retail and hospitality market reaching nearly $30 billion by 2023.1 are deploying smartwatches for While smartwatches for fitness and activity tracking are popular, consumer demand is only part of the equation. added business value. Enterprises are also seeing business value in wearable devices. In a report by Robert Half Technology, 81 percent of CIOs surveyed expect wearable devices like smartwatches to Samsung has been working to address these concerns and become common tools in the workplace.2 has developed the tools to make its Galaxy and Galaxy Active smartwatches customizable, easily manageable and highly secure for enterprise users. This white paper will look at how these tools address key wearable security and manageability challenges, as well as considerations for smartwatch 81% deployments. of CIOs surveyed expect wearable devices like smartwatches to become common tools in the workplace. Industries as varied as healthcare, finance, energy, transportation, public safety, retail and hospitality are deploying smartwatches for added business value, such as hands-free communication for maintenance workers, task management, as well as physical monitoring of field workers in dangerous or remote locations.