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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. -
8000 Plus Magazine Issue 17
THE BEST SELLIINIG IVI A<3 AZI INI E EOF=t THE AMSTRAD PCW Ten copies ofMin^g/jf^^ Office Professional to be ISSUE 17 • FEBRUARY 1988* £1.50 Could AMS's new desktop publishing package be the best yet? f PLUS: Complete buyer's guide to word processing, accounts, utilities and DTP software jgl- ) MASTERFILE 8000 FOR ALL AMSTRAD PCW COMPUTERS MASTERFILE 8000, the subject of so many Any file can make RELATIONAL references to up enquiries, is now available. to EIGHT read-only keyed files, the linkage being effected purely by the use of matching file and MASTERFILE 8000 is a totally new database data names. product. While drawing on the best features of the CPC versions, it has been designed specifically for You can import/merge ASCII files (e.g. from the PCW range. The resulting combination of MASTERFILE III), or export any data (e.g. to a control and power is a delight to use. word-processor), and merge files. For keyed files this is a true merge, not just an append operation. Other products offer a choice between fast but By virtue of export and re-import you can make a limited-capacity RAM files, and large-capacity but copy of a file in another key sequence. New data cumbersome fixed-length, direct-access disc files. fields can be added at any time. MASTERFILE 8000 and the PCW RAM disc combine to offer high capacity with fast access to File searches combine flexibility with speed. variable-length data. File capacity is limited only (MASTERFILE 8000 usually waits for you, not by the size of your RAM disc. -
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. -
NASM – the Netwide Assembler
NASM – The Netwide Assembler version 2.14rc7 © 1996−2017 The NASM Development Team — All Rights Reserved This document is redistributable under the license given in the file "LICENSE" distributed in the NASM archive. Contents Chapter 1: Introduction . 17 1.1 What Is NASM?. 17 1.1.1 License Conditions . 17 Chapter 2: Running NASM . 19 2.1 NASM Command−Line Syntax . 19 2.1.1 The −o Option: Specifying the Output File Name . 19 2.1.2 The −f Option: Specifying the Output File Format . 20 2.1.3 The −l Option: Generating a Listing File . 20 2.1.4 The −M Option: Generate Makefile Dependencies. 20 2.1.5 The −MG Option: Generate Makefile Dependencies . 20 2.1.6 The −MF Option: Set Makefile Dependency File. 20 2.1.7 The −MD Option: Assemble and Generate Dependencies . 20 2.1.8 The −MT Option: Dependency Target Name . 21 2.1.9 The −MQ Option: Dependency Target Name (Quoted) . 21 2.1.10 The −MP Option: Emit phony targets . 21 2.1.11 The −MW Option: Watcom Make quoting style . 21 2.1.12 The −F Option: Selecting a Debug Information Format . 21 2.1.13 The −g Option: Enabling Debug Information. 21 2.1.14 The −X Option: Selecting an Error Reporting Format . 21 2.1.15 The −Z Option: Send Errors to a File. 22 2.1.16 The −s Option: Send Errors to stdout ..........................22 2.1.17 The −i Option: Include File Search Directories . 22 2.1.18 The −p Option: Pre−Include a File . 22 2.1.19 The −d Option: Pre−Define a Macro . -
John Resig and Zoo” First Video Was Uploaded Two” [April 2]
and parallel ports. Its 9" green which simplifies client-side monochrome screen compared HTML scripting, and has May 8th favorably to the Osborne 1’s tiny produced several other notable 5" display. JavaScript libraries, including Processing.js, Env.js, Sizzle.js, Nevertheless, the press mocked and QUnit. He was also Gary Wang its design – one magazine responsible for Khan Academy's described Kaypro as “producing [Nov 16] online environment for (Wáng Wēi) computers packaged in tin cans”. learning to program. Born: May 8, 1973; However, by mid-1983 the Fuzhou, Fujian, China company was selling more than An interest in art history led to 10,000 units a month, briefly his development of two image Wang founded the Chinese video making it the fifth-largest databases: Ukiyo-e.org which sharing company Tudou.com in computer maker in the world. collects Japanese woodblock Jan. 2005 (a month before Indeed, its rugged design made prints, and “PHAROS Images,” a YouTube [Feb 14] debuted), and it a popular choice in industry. photo archive. the site was officially launched Arthur C. Clarke [Dec 16] also Incorrect reports that he was on April 15, just over a week chose a Kaypro II to write his attacked by a vampire in 2014 before YouTube’s “Me at the 1982 novel “2010: Odyssey refer to the actor John Resig and Zoo” first video was uploaded Two” [April 2]. [April 23]. his role as the goofy town deputy, Kevin Ellis, on the TV On March 12, 2013, Wang show “True Blood”. formed “Light Chaser Animation Studios” to produce animated films targeting the Chinese market, Mother’s Day with the aim of building “The Pixar of China”. -
NASM — the Netwide Assembler Version 2.09.04
NASM — The Netwide Assembler version 2.09.04 -~~..~:#;L .-:#;L,.- .~:#:;.T -~~.~:;. .~:;. E8+U *T +U' *T# .97 *L E8+' *;T' *;, D97 `*L .97 '*L "T;E+:, D9 *L *L H7 I# T7 I# "*:. H7 I# I# U: :8 *#+ , :8 T, 79 U: :8 :8 ,#B. .IE, "T;E* .IE, J *+;#:T*" ,#B. .IE, .IE, © 1996−2010 The NASM Development Team — All Rights Reserved This document is redistributable under the license given in the file "LICENSE" distributed in the NASM archive. Contents Chapter 1: Introduction . .15 1.1 What Is NASM? . .15 1.1.1 Why Yet Another Assembler?. .15 1.1.2 License Conditions . .15 1.2 Contact Information . .16 1.3 Installation. .16 1.3.1 Installing NASM under MS−DOS or Windows . .16 1.3.2 Installing NASM under Unix . .17 Chapter 2: Running NASM . .18 2.1 NASM Command−Line Syntax . .18 2.1.1 The −o Option: Specifying the Output File Name . .18 2.1.2 The −f Option: Specifying the Output File Format . .19 2.1.3 The −l Option: Generating a Listing File . .19 2.1.4 The −M Option: Generate Makefile Dependencies . .19 2.1.5 The −MG Option: Generate Makefile Dependencies . .19 2.1.6 The −MF Option: Set Makefile Dependency File . .19 2.1.7 The −MD Option: Assemble and Generate Dependencies. .19 2.1.8 The −MT Option: Dependency Target Name. .20 2.1.9 The −MQ Option: Dependency Target Name (Quoted) . .20 2.1.10 The −MP Option: Emit phony targets. .20 2.1.11 The −F Option: Selecting a Debug Information Format . -
CP/M-80 Kaypro
$3.00 June-July 1985 . No. 24 TABLE OF CONTENTS C'ing Into Turbo Pascal ....................................... 4 Soldering: The First Steps. .. 36 Eight Inch Drives On The Kaypro .............................. 38 Kaypro BIOS Patch. .. 40 Alternative Power Supply For The Kaypro . .. 42 48 Lines On A BBI ........ .. 44 Adding An 8" SSSD Drive To A Morrow MD-2 ................... 50 Review: The Ztime-I .......................................... 55 BDOS Vectors (Mucking Around Inside CP1M) ................. 62 The Pascal Runoff 77 Regular Features The S-100 Bus 9 Technical Tips ........... 70 In The Public Domain... .. 13 Culture Corner. .. 76 C'ing Clearly ............ 16 The Xerox 820 Column ... 19 The Slicer Column ........ 24 Future Tense The KayproColumn ..... 33 Tidbits. .. .. 79 Pascal Procedures ........ 57 68000 Vrs. 80X86 .. ... 83 FORTH words 61 MSX In The USA . .. 84 On Your Own ........... 68 The Last Page ............ 88 NEW LOWER PRICES! NOW IN "UNKIT"* FORM TOO! "BIG BOARD II" 4 MHz Z80·A SINGLE BOARD COMPUTER WITH "SASI" HARD·DISK INTERFACE $795 ASSEMBLED & TESTED $545 "UNKIT"* $245 PC BOARD WITH 16 PARTS Jim Ferguson, the designer of the "Big Board" distributed by Digital SIZE: 8.75" X 15.5" Research Computers, has produced a stunning new computer that POWER: +5V @ 3A, +-12V @ 0.1A Cal-Tex Computers has been shipping for a year. Called "Big Board II", it has the following features: • "SASI" Interface for Winchester Disks Our "Big Board II" implements the Host portion of the "Shugart Associates Systems • 4 MHz Z80-A CPU and Peripheral Chips Interface." Adding a Winchester disk drive is no harder than attaching a floppy-disk The new Ferguson computer runs at 4 MHz. -
KAYPRO 10 User's Guide, Copying Fi Les from One User Area to Another, for the Prodedure
I - ~------- - - - • - --- - -- --~ - - - - ~ -- - - - --- ---_---.. ---------- --- ---------- o o o ,.' . ''', ',. THE ---- -- -- -------- - -- -- ---- - ------- . ----- ------ -- - =-- -- ------ ---_... -------- - - ~ USER'S GUDE ., . © January 1984 Part Number 1409 E.O.81-176-18-F COPYRIGHT AND TRADEMARK © 1983 Kaypro Corporation. KAYPRO 10 is a registered trademark of Kaypro Corporation. DISCLAIMER Kaypro Corporation hereby disclaims any and all liability resulting from the failure of other manufacturers' software to be operative within and upon the KAYPRO 10 computer, due to Kaypro's inability to have tested each entry of software. LIMITED WARRANTY Kaypro Corporation warrants each new instrument or computer against defects in material or workmanship for a period of ninety days from date of delivery to the original customer. Fuses are excluded from this warranty. This warranty is specifically limited to the replacement or repair of any such defects, without charge, when the complete instrument is returned to one of our authorized dealers or Kaypro Corporation, 533 Stevens Avenue, Solana Beach, California 92075, transportation charges prepaid. This express warranty excludes all other warranties, express or implied, in cluding, but not limited to, implied warranties of merchantability, and fitness for purpose, and KAYPRO CORPORATION IS NOT LIABLE FOR A BREACH OF WARRANTY IN AN AMOUNT EXCEEDING THE PURCHASE PRICE OF THE GOODS. KAYPRO CORPORATION SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. No liability is assumed for -
Microcomputers in Development: a Manager's Guide
Microcomputers in Development: A Manager's Guide Marcus D. Ingle, Noel Berge, and Marcia Hamilton Kumarianfl P-ress 29 Bishop Road West Hartford, Connecticut 06119 Dedications To Diana who is so special in many ways, Aric who helps me learn, Aaron who makes it fun, and Danika who has it all together. Marcus To my Love and Best Friend - Nancy. Noel I am so grateful for the patience, support and gentle harassment provided by my children, Daniel and Elizabeth, and by my husband Dennis. Marcia Copyright © 1983 by Kumarian Press 29 Bishop Road, West Hartford, Connecticut 06119 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. Printed in the United States of America Cover de.ign by Marilyn Penrod This manuscript was prepared on a Kaypro microcomputer using Wordstar and printed on a C. Itoh printer using prestige elite type. Library of Congress Cataloging in Publication Data Ingle, Marcus. Microcomputers in development. Bibliography: p: 1. Microcomputers. 2. Economic development projects Management-Data processing. I. Berge, Noel, 1943- II.Hamilton, Marcia, 1943- III. Title. QA76.5.1445 1983 658.4'038 83-19558 ISBN 0-931816-03-3 ii TABLE OF CONTENTS Table of Contents iii Foreword v[ ( Authors' Pre fac- ix Acknowledgement s xf INTRODUCTION 1 Some Implications 2 What a Microcomputer is Not 2 Who Should Use T~i Guide? 3 The Purpose and Scope of the Guide 5 What the Guide Does and Does Not Do 6 CHAPTER I: THE IMANAGEMENT POTENTIAL OF USER-FRIENDLY MICROCOMPUTERS 9 The Context if Development Management ]I Generic Management Functions 13 The Importance of User-Friendliness in Microcomputer Systems 24 Structured Flexibility 24 User-Friendly Skill. -
Operating Systems Introduction
9/11/18 Today COS 318: Operating Systems u Course information and logistics u What is an operating system? Introduction u Evolution of operating systems u Why study operating systems? Jaswinder Pal Singh and a Fabulous Course Staff Computer Science Department Princeton University http://www.cs.princeton.edu/courses/archive/fall16/cos318/ 2 Information and Staff Grading u Website l http://www.cs.princeton.edu/courses/archive/fall18/cos318/ u Projects 70% u Textbooks u Exam 20% l Modern Operating Systems, 4th Edition, Tanenbaum and Bos u Instructors u Class Participation 10% l Jaswinder Pal Singh, Office: 423 CS, Hours: Mon 1:30 – 3 pm u Teaching assistants (offices and hours to be posted on web site) u Exam will be in-class, likely sometime after midterm l Lance Goodridge week (watch for announcements) l James Heppenstall u Undergraduate Assistants (to be finalized) 3 4 1 9/11/18 Projects Projects u Build a small but real OS kernel, bootable on real PCs u How l Pair with a partner for project 1, 2 and 3 u A lot of hacking (in C & x86 assembly) but very rewarding l Pair with a different partner for project 4 and 5 u Projects l Do the final project yourself (no partners) l Design review at the end of week one l Bootloader (150-300 lines) l All projects due Sundays at 11:55 pm l Non-preemptive kernel (200-250 lines) l Preemptive kernel (100-150 lines) u Where to do the projects l Inter-process communication and device driver (300-350 lines) l Develop on courselab machines, via remote login l Virtual memory (300-450 lines) l Instructions on -
The User's Column, December 1980, BYTE Magazine
BASIC, Computer Languages, and Computer Adventures Jerry Pournelle c/ o BYTE Publications 70 Main St Peterborough NH 03458 It's a typical Sunday afternoon here at Chaos Manor. new users become familiar with the way computers In one room a dozen kids are playing games on the Radio think, became studded with features. Every time you Shack TRS-80, while here in the office I've been playing turned around there was a new BASIC interpreter, each about with the C programming language after adding a one larger than the last, and almost none of them com check-writer to my accounting programs. My wife, the patible with each other. Whatever portability BASIC had only practical member of the family, gently reminds me enjoyed vanished in a myriad of disk operations, func of my deadlines: galley proofs of a new novel, King tions, WHILE statements, new input formats, etc, etc, David's Spaceship (Simon and Schuster); two chapters of and, at the same time, the "free" memory left over after the latest Niven/ Pournelie collaboration, Oath of Fealty loading BASIC got so small that you couldn't handle (Simon and Schuster, Real Soon Now); plus three col much data. umns; a speech to a librarians' convention; and inputs for The logical end of that process is Microsoft's newest a NASA study on America's fifty-year space plan. Some BASIC-BO. Understand, it's an excellent BASIC. It has business people worry about cash flow; for authors it's features that, not long ago, the most advanced languages work flow-work comes in bunches, like bananas, and didn't have. -
BASIC Programming with Unix Introduction
LinuxFocus article number 277 http://linuxfocus.org BASIC programming with Unix by John Perr <johnperr(at)Linuxfocus.org> Abstract: About the author: Developing with Linux or another Unix system in BASIC ? Why not ? Linux user since 1994, he is Various free solutions allows us to use the BASIC language to develop one of the French editors of interpreted or compiled applications. LinuxFocus. _________________ _________________ _________________ Translated to English by: Georges Tarbouriech <gt(at)Linuxfocus.org> Introduction Even if it appeared later than other languages on the computing scene, BASIC quickly became widespread on many non Unix systems as a replacement for the scripting languages natively found on Unix. This is probably the main reason why this language is rarely used by Unix people. Unix had a more powerful scripting language from the first day on. Like other scripting languages, BASIC is mostly an interpreted one and uses a rather simple syntax, without data types, apart from a distinction between strings and numbers. Historically, the name of the language comes from its simplicity and from the fact it allows to easily teach programming to students. Unfortunately, the lack of standardization lead to many different versions mostly incompatible with each other. We can even say there are as many versions as interpreters what makes BASIC hardly portable. Despite these drawbacks and many others that the "true programmers" will remind us, BASIC stays an option to be taken into account to quickly develop small programs. This has been especially true for many years because of the Integrated Development Environment found in Windows versions allowing graphical interface design in a few mouse clicks.