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Build a Swtpc 6800
Southwest Technical Products Corporation 6800 Computer System The Southwest Technical Products 6800 computer system is based upon the Motorola MC6800 microprocessor unit (MPU) and its matching support devices. The 6800 system was chosen for our computer because this set of parts is currently in our opinion the "Benchmark Family" for microprocessor computer systems. It makes it possible for us to provide you with an outstanding computer system having a minimum of parts, but with outstanding versatility and ease of use. In addition to the outstanding hardware system, the Motorola 6800 has without question the most complete set of documentation yet made available for a microprocessor system. The 714 page Applications Manual, for example, contains material on programming techniques, system organization, input/output techniques, hardware characteristics, peripheral control techniques, and more. Also available is a Programmers Manual which details the various types of software available for the system and instructions for programming and using the unique interface system that is part of the 6800 system. The M6800 family of parts minimizes the number of, required components and support parts, provides extremely simple interfacing to external devices and has outstanding documentation. The MC6800 is an eight-bit parallel microprocessor with addressing capability of up to 45,536 words (BYTES) of data. The system is TTL compatible requiring only a single fine-volt power supply. All devices and memory in the 6800 computer family are connected to an 8-bit bi-directional data bus. In addition to this a 16-bit address bus is provided to specify memory location. This later bus is also used as a tool to specify the particular input/ output device to be selected when the 6800 family interface devices are used. -
Hardware Diagnostics for Uniflex
HARDWARE DIAGNOSTICS for UNIFLEX™ COPYRIGHT © 1982 SOUTHWEST TECHNICAL PRODUCTS CORPORATION CDSBUG DIAGNOSTIC for UNIFLEX™: COPYRIGHT © 1982 SOUTHWEST TECHNICAL PRODUCTS CORPORATION Important Note Most of the enclosed diagnostics will work only with the MP-09 processor board and NOT with the SWIPC MPU-1 processor board. This is due to the lack of an allocate physical resource system call in the UniFlex operating system. Tf this system call is added to UniFlex in the future, all diagnostics will be modified to work with the MPU-l board. UniFlex is a registered trademark of Technical Systems Consultants Diagnostic: CDSBUG CDSBUG is a diagnostic tool designed to assist qualified technical personnel in finding and rectifying malfunctions in the SWIPC CDS Marksman disk units. IMPORTANT NOTE will Improper use of the diagnostic program "CDSBUG" result in loss of information contained on the CDS disk units. Southwest Technical Products Corporation specifically disclaims any responsibility or liability for any such damages incurred or generated by the "CDSBUG" diagnostic for program. This program is not sold or intended the CDS distribution to persons unfamiliar with CDSBUG units or the operation of diagnostic tools. remains the sole property of Southwest Technical Products and may not be reproduced or distributed without prior written permission. CDSBUG (C) Copyright 1982 Southwest Technical Products Corporation * CDSBUG Copyright (C) MCMLXXXII by - Southwest Technical Products This: product. remainsthe property of Southwest. Technical Products Corporation, 219 West Rhapsody, San Antonio, Texas, in 78216, U.S.A., and may not be distributed, copied, stored a retrieval system, or reproduced by any means, without prior written permission of Southwest Technical Products. -
Microware OS-9 Release Notes Version 3.2
Microware OS-9 Release Notes Version 4.1 RadiSys. 118th Street Des Moines, Iowa 50325 515-223-8000 www.radisys.com Revision A • May 2003 Copyright and publication information Reproduction notice This manual reflects version 4.1 of Microware OS-9. The software described in this document is intended to Reproduction of this document, in part or whole, by be used on a single computer system. RadiSys Corpo- any means, electrical, mechanical, magnetic, optical, ration expressly prohibits any reproduction of the soft- chemical, manual, or otherwise is prohibited, without written permission from RadiSys Corporation. ware on tape, disk, or any other medium except for backup purposes. Distribution of this software, in part Disclaimer or whole, to any other party or on any other system may constitute copyright infringements and misappropria- The information contained herein is believed to be accurate as of the date of publication. However, tion of trade secrets and confidential processes which RadiSys Corporation will not be liable for any damages are the property of RadiSys Corporation and/or other including indirect or consequential, from use of the parties. Unauthorized distribution of software may OS-9 operating system, Microware-provided software, cause damages far in excess of the value of the copies or reliance on the accuracy of this documentation. involved. The information contained herein is subject to change without notice. May 2003 Copyright ©2003 by RadiSys Corporation. All rights reserved. EPC and RadiSys are registered trademarks of RadiSys Corporation. ASM, Brahma, DAI, DAQ, MultiPro, SAIB, Spirit, and ValuePro are trademarks of RadiSys Corporation. DAVID, MAUI, OS-9, OS-9000, and SoftStax are registered trademarks of RadiSys Corporation. -
SWTPC PR-40 Alphanumeric Printer Assembly Instructions
SWTPC PR-40 Alphanumeric Printer Assembly Instructions The SWTPC PR-40 Printer kit is a 5 X 7 dot matrix impact printer similar in operation to the well known Centronics printers. It prints the 64 character upper case ASCII set with 40 characters/line at a rate of 75 lines/minute on standard 3 7/8" wide rolls of adding machine paper. One complete line is printed at a time from an internal forty character line buffer memory. Printing takes place either on receipt of a carriage return or automatically whenever the line buffer memory is filled. The printer can accept character data as fast as one character per microsecond or as slow as you wish to send it. The printer's seven parallel data lines are TTL compatible and may be enabled by a single "data ready" control line or by separate "data ready" and "data accepted" handshake control lines. This universal approach makes the printer compatible with all computer and terminal systems having an eight bit parallel interface; including of course the MITS 8800 and SWTPC 6800 computer systems just to mention a few. The printer mechanism is attached to a black anodized aluminum chassis with front trim panel which houses the unit's circuitry including its own 120/240 VAC 50 to 60 Hz power supply. This makes the printer's overall dimensions 9 5/8" wide X 10 1/2" deep X 8 3/4" high. Each unit is shipped with one ribbon and one roll of paper. Extra ribbons are available from us while the standard adding machine paper may be purchased in office supply stores. -
ROM OS-9 Into Your Coco Boisy G
ROM OS-9 Into Your CoCo Boisy G. Pitre Imagine turning on your CoCo and instead of being greeted with the all-to-familiar Microsoft BASIC copyright message and OK prompt, you see “OS9 BOOT”. In two seconds, the OS-9 copyright banner and an OS9: prompt appears, and you have an OS-9 shell at your fingertips without having anything plugged in the CoCo’s expansion port! It may sound far out, but it’s actually quite easy to set up a ROM-based OS-9 CoCo. It can be done simply by replacing the Microsoft BASIC ROM that comes in all CoCo systems with a ROM containing OS-9 with special modifications to certain modules to allow booting from ROM. OS-9 Sans Disk? It may sound strange that OS-9 could be run totally from ROM, but indeed, this is the way that OS-9 was designed to run: without any disk storage. In the embedded OS-9 world, a disk drive or other mass storage device is incidental, or in most cases, impractical. Yet in the CoCo world, we have become accustomed to thinking of OS-9 as a Disk Operating System (DOS) as opposed to an embedded operating system. This was reinforced by the fact that Tandy/Radio Shack catalogs stated that OS-9 required a disk drive, and indeed, for the particular boot strategy that Tandy and Microware employed, a disk drive was and still is necessary. So if it is possible to use OS-9 without a disk drive, then what’s the point? How useful can OS-9 be without a disk drive? The answer: extremely useful. -
Wikipedia: Design of the FAT File System
Design of the FAT file system A FAT file system is a specific type of computer file system architecture and FAT a family of industry-standard file systems utilizing it. Developer(s) Microsoft, SCP, IBM, [3] The FAT file system is a legacy file system which is simple and robust. It Compaq, Digital offers good performance even in very light-weight implementations, but Research, Novell, cannot deliver the same performance, reliability and scalability as some Caldera modern file systems. It is, however, supported for compatibility reasons by Full name File Allocation Table: nearly all currently developed operating systems for personal computers and FAT12 (12- many home computers, mobile devices and embedded systems, and thus is a bit version), well suited format for data exchange between computers and devices of almost FAT16 (16- any type and age from 1981 through the present. bit versions), Originally designed in 1977 for use on floppy disks, FAT was soon adapted and FAT32 (32-bit version used almost universally on hard disks throughout the DOS and Windows 9x with 28 bits used), eras for two decades. Today, FAT file systems are still commonly found on exFAT (64- floppy disks, USB sticks, flash and other solid-state memory cards and bit versions) modules, and many portable and embedded devices. DCF implements FAT as Introduced 1977 (Standalone the standard file system for digital cameras since 1998.[4] FAT is also utilized Disk BASIC-80) for the EFI system partition (partition type 0xEF) in the boot stage of EFI- FAT12: August 1980 compliant computers. (SCP QDOS) FAT16: August 1984 For floppy disks, FAT has been standardized as ECMA-107[5] and (IBM PC DOS 3.0) ISO/IEC 9293:1994[6] (superseding ISO 9293:1987[7]). -
Technology Assessment: Methods for Measuring the Level of Computer Security
AlllDb 33MMn Computer Science National Bureau and Technology of Standards NBs NBS Special Publication 500-133 PUBLICATIONS Technology Assessment: Methods for Measuring the Level of Connputer Security William Neugent, John Gilligan, ance Hoffman, and Zella G. Ruthberg 100, ' .1157 500-133 1985 . ] I he National Bureau of Standards' was established by an act of Congress on March 3, 1901. The Bureau's overall goal is to strengthen and advance the nation's science and technology and facilitate their effective application for public benefit. To this end, the Bureau conducts research and provides: (1) a basis for the nation's physical measurement system, (2) scientific and technological services for industry and government, (3) a technical basis for equity in trade, and (4) technical services to promote public safety. The Bureau's technical work is performed by the National Measurement Laboratory, the National Engineering Laboratory, the Institute for Computer Sciences and Technology, and the Institute for Materials Science and Engineering The National Measurement Laboratory Provides the national system of physical and chemical measurement; • Basic Standards^ coordinates the system with measurement systems of other nations and • Radiation Research furnishes essentiaJ services leading to accurate and uniform physical and • Chemical Physics chemical measurement throughout the Nation's scientific community, in- • Analytical Chemistry dustry, and commerce; provides advisory and research services to other Government agencies; conducts physical and -
Tandy's Little Wonder the Color Computer 1979-1991
Tandy's Little Wonder The Color Computer 1979-1991 A complete history and reference guide to the CoCo and all related hardware, software, and support sources. by F.G. Swygert SECOND EDITION - UPDATED FEB 2006 Tandy's Little Wonder page 1 INSIDE FRONT COVER If printing to bind, print only page 1 (front cover) on card stock or heavy colored paper. page 2 Tandy's Little Wonder Tandy's Little Wonder the Color Computer: 1980-1991 (and still going strong into the next century!) Second Edition written & edited by F.G. Swygert The Original Tandy Color Computer First Edition Copyright 1993, Second Edition Copyright 2006 by F.G. Swygert. All rights reserved. Published by FARNA Systems 147 Tom Moore Road, Leesville, SC 29070 e-mail: [email protected] Tandy's Little Wonder page 3 Tandy's Little Wonder the Color Computer SPECIAL ACKNOWLEDGEMENTS: The following individuals have made contributions directly or indirectly to the content of this book : Frances Calcraft Lee Duell Thomas Fann Art Flexser Marty Goodman Frank Hogg Alan Huffman Don Hutchison Carmen Izzi Jr. M. David Johnson Bob Kemper Mark Marlette (Cloud-9) Nicholas Marentes Dave Myers Bob Montowski Alfredo Santos Kelly Thompson Jordan Tsvetkoff Rick Ulland Brian Wright Glenside Color Computer Club Mid-Iowa & Country CoCo Club Banner for the 15th "Last" CoCoFest annually hosted by Glenside Color Computer Club -- true stalwarts of the CoCo Community! This edition is dedicated to all those who continue to collect, use, and enjoy the Tandy Color Computer. All brand/trade names copyright their respective owners. No part of this publication may be reproduced or quoted without written permission from the publisher. -
(NASACFZ-1S2/Ot
(NASACFZ-1s2/ot (1'AS-C-121~fPRELIMAINARY STUDY FOR A NUMERICAL AERODYNAMIC SIMULATION FACILITy. N78-19052 PHASE 1: EXTENSION Control Data Corp., St. Paul, Minn.) 434 p HC A19/MF A01 CSCL 01A Unclas G3/02 08630 PRELIMINARY STUDY FOR A NUMERICAL AERODYNAMIC SIMULATION FACILITY SUMMARY REPORT - PHASE 1 EXTENSION By: N. R. Lincoln FEBRUARY, 1978 Distribution of this report is provided in the interest of information exchang'e. Responsibility for the contents resides in the authors or organization that prepared it. Prepared under Contract No. NAS2-9457 by: CONTROL DATA CORPORATION Research and Advanced Design Laboratory 4290 Fernwood Street St. Paul, Minnesota 55112 for AMES RESEARCH CENTER NATIONAL AERONAUTICS AND SPACE ADMINISTRATION R EPVED ItA SI FACULWM SUMMARY REPORT - PHASE I EXTENSION Phase I of the NASF study which was completed in October 1977 produced several conclusions about the feasibility of construction of a flow model simulation facility. A computer structure was proposed for the Navier-Stokes Solver (NSS), now called the Flow Model Processor (FMP), along with technological and system approaches. Before such a system can enter an intensive design investigation phase several tasks must be accomplished to establish uniformity and control over the remaining design steps, as well as clarifying and amplifying certain portions of the conclusions drawn in Phase 1. In order of priority these were seen as: 1. Establishing a structure and format for documenting the design and implementation of the FMP facility. 2. Developing 'a complete, practically engineered design that would perform as claimed in the Phase 1 report. 3. Creating a design verification tool for NASA analysts, using a computerized simulation system. -
File Allocation Table - Wikipedia, the Free Encyclopedia Page 1 of 22
File Allocation Table - Wikipedia, the free encyclopedia Page 1 of 22 File Allocation Table From Wikipedia, the free encyclopedia File Allocation Table (FAT) is a file system developed by Microsoft for MS-DOS and is the primary file system for consumer versions of Microsoft Windows up to and including Windows Me. FAT as it applies to flexible/floppy and optical disc cartridges (FAT12 and FAT16 without long filename support) has been standardized as ECMA-107 and ISO/IEC 9293. The file system is partially patented. The FAT file system is relatively uncomplicated, and is supported by virtually all existing operating systems for personal computers. This ubiquity makes it an ideal format for floppy disks and solid-state memory cards, and a convenient way of sharing data between disparate operating systems installed on the same computer (a dual boot environment). The most common implementations have a serious drawback in that when files are deleted and new files written to the media, directory fragments tend to become scattered over the entire disk, making reading and writing a slow process. Defragmentation is one solution to this, but is often a lengthy process in itself and has to be performed regularly to keep the FAT file system clean. Defragmentation should not be performed on solid-state memory cards since they wear down eventually. Contents 1 History 1.1 FAT12 1.2 Directories 1.3 Initial FAT16 1.4 Extended partition and logical drives 1.5 Final FAT16 1.6 Long File Names (VFAT, LFNs) 1.7 FAT32 1.8 Fragmentation 1.9 Third party -
Commodore - 64 „ Word Processors AJIR
$2.50 NO. 64 SEPTEMBER 1983 International Edition $3.00 /Acim a g in g . Computer Knowledge x Design your own !\ V educational software Elementary students use Logo Establish an effective computer curriculum in your school system Turtle Graphics for the VIC-20 and C64 More Than in the Valley I Look a\ a Personal Computer See page 28 See page 60 See page 37 Atari Painting Program Wraps Up A Product Catalog for the Atari and Apple Text Compression and Encryption Will Remember (If you . ■* . ,r *■> . *•,*- fCS&p Imagine a system that would record all MAGIC MEMORY4 is built for th&axr^V; the wonderous, valuable information puter rookie Everyone can relate to -/ you have assimilated onto a single tiny MAGIC MEMORY* becauseitsfofrft is^ r disk. (No more scattered bits of paper, familiar. It looks like an address book ''1 business cards, etc.) Imagine the same but its not. Its more. Like the address system giving you a typed sheet you book MAGIC MEMORY" presents an could put into a notebook or print out A thru Z index tabulation on the right for a party and instantly change, or add edge of the video display The user to, at a moments notice. Imagine cross- simply selects a tab and the book is referencing to suit both your business opened to the proper page(s). A second needs and personal desires so that all set of tabs are available that can be your data was organized into one little labeled by the user (i e companies one black book! On top of all this — imagine deals with, birthdays, lists, wines, having fun putting it together. -
Pirate Or Hackers Bible More Like Guidelines...= a = Abbrev: /*-Breev
Pirate or Hackers Bible More like guidelines.... = A = abbrev: /*-breev'/, /*-brev'/ n. Common abbreviation for `abbreviation'. ABEND: [ABnormal END] /ah'bend/, /*-bend'/ n. Abnormal termination (of software); {crash}; {lossage}. Derives from an error message on the IBM 360; used jokingly by hackers but seriously mainly by {code grinder}s. Usually capitalized, but may appear as `abend'. Hackers will try to persuade you that ABEND is called `abend' because it is what system operators do to the machine late on Friday when they want to call it a day, and hence is from the German `Abend' = `Evening'. accumulator: n. 1. Archaic term for a register. On-line use of it as a synonym for `register' is a fairly reliable indication that the user has been around for quite a while and/or that the architecture under discussion is quite old. The term in full is almost never used of microprocessor registers, for example, though symbolic names for arithmetic registers beginning in `A' derive from historical use of the term `accumulator' (and not, actually, from `arithmetic'). Confusingly, though, an `A' register name prefix may also stand for `address', as for example on the Motorola 680x0 family. 2. A register being used for arithmetic or logic (as opposed to addressing or a loop index), especially one being used to accumulate a sum or count of many items. This use is in context of a particular routine or stretch of code. "The FOOBAZ routine uses A3 as an accumulator." 3. One's in-basket (esp. among old-timers who might use sense 1). "You want this reviewed? Sure, just put it in the accumulator." (See {stack}.) ACK: /ak/ interj.