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Upload: Commodore 64 Disk Systems and Printers


This book covers the advantages, principles, and details of the disk systems for the Commodore 64. It sets out the ordinary actions of LOAD and SAVE, machine code loading and saving, and the special commands that are peculiar to disk systems. The actions of filing are explained in detail, since filing on disk is such an important feature of business and other database applications, and available disk utilities are reviewed.

Submitted by ecbm Commodore 64 Disk Systems and Printers

Upload: Commodore 64 Disk Companion


The advent of inexpensive, reliable disk drives for home use represents a revolution in what can be achieved with a microcomputer. Any computer, no matter how large or small, comes into its own only when it is able to access data far more quickly than can be achieved with the trusty but tortoise-like cassette drive. Without fast mass storage, substantial programs become tiresome burdens which can take up to 15 minutes to load. The handling of data becomes a nightmare, with its constant necessity to rewind or change tapes and the wait while data is slowly added to memory. In short, the best computer is only as good as the means it uses to store data. The disk drive is far from a luxury, it is an essential component of an effective microcomputer system. Nowhere is this more true than in relation to the Commodore 64. The success of the 64 as far more than a games machine or a computing toy is based to a large extent on Commodore's ability to produce a disk drive which works to the highest standards and yet is within the price range of anyone who takes their computing at all seriously. But simply to buy a disk drive is not the solution to the problem of enlarging the scope of the 64. Like any disk drive, the 1541 has its own way of working, and its own habits which are neglected at its owner's peril. Poorly thought out working methods with a disk often mean that much of its potential can remain unrealised. Carelessness, or lack of understanding, can mean that valuable data or programs are irretrievably lost. And yet, for all that, the 1541 is a well designed piece of equipment, full of features that many disk drive owners can only dream about. This book is an attempt on our part to share some of the many discoveries that we have made about the 1541 disk drive, the enjoyment that comes with using it and the power that is released when it is used well. 

Upload: 1541 Maintenance Guide


By public request the author has compiled this maintenance guide. This guide contains the following excerpts from the "1541 Single Drive Floppy Disk Maintenance Manual":
 •Calibration (including head alignment) 
•Troubleshooting Part I (for the novice) 
•Schematics and Parts Layout (reference data for those with experience)

Upload: 1541 Users Guide


This book is intended to help you make more effective use of your Commodore disk drive. Although the examples and program listings are designed for use on a Commodore 64 or VIC-20 with a 1541 disk drive, many will work without modification on other Commodore computers and disk drives. This book expands and clarifies the documentation provided by Commodore Business Machines, Inc. Some of the information covered in the 1541 User's Manual is also presented here. However, the majority of information presented in this book is original and is the result of intensive research and testing by the author.

Submitted by mhoney 1541 Users Guide

Upload: Inside Commodore DOS


This manual is intended to supplement the documentation provided in the 1541 User's Manual. Although this manual is primarily designed to meet the needs of the intermediate to advanced programmer, it will also be of interest to the novice Commodore user who wants to know more about how his 1541 disk drive works. This manual is not intended to replace the documentation provided by Commodore Business Machines, Inc. and the reader is assumed to be relatively familiar with the contents of the 1541 User's Manual. For the sake of continuity and clarity, some of the information covered in the 1541 User's Manual is also presented here. However, the majority of the information presented in this manual is original and is the result of intensive dis-assembly and annotation of the 1541's DOS by the authors. Some information is based on articles and notes published in a variety of publications as well as discussions with other knowledgeable disk experts. This manual was not prepared with the assistance of Commodore Business Machines, Inc. Although we cannot guarantee the accuracy of all the information presented in this manual, the material has been thoroughly researched and tested.

There were several reasons for writing Inside Commodore DOS:
1. To correct errors and omissions in the 1541 User's Manual.
2. To help you make more effective use of your disk drive.
3. To provide complete information on diskette formatting.
4. To provide complete information on the storage of files.
5. To allow you to read and write data in non-standard ways.
6. To help you make a backup copy of your "protected" diskettes.
7. To help you recover damaged diskettes.
8. To help you understand the operation of your disk drive.

NOTE : .D64 included inside PDF

Submitted by mhoney Inside Commodore DOS

Upload: Anatomy of the 1541 Disk Drive


This in depth guide for the Commodore 1541 disk drive owner unravels the mysteries of using the 1541 for programs, sequential and relative files with plenty of working examples. This book includes several useful Utilities — DISK MONITOR. FILE PROTECTOR,BACKUP, MERGE and more- The Anatomy also discusses the internals of the DISK Operating System with the complele fully commented ROM listings.

Submitted by mhoney Anatomy of the 1541 Disk Drive

Upload: Commodore Care Manual


The computer is perhaps among the most revolutionary inventions in our history. Its presence influences our culture and each of our lives in many ways. Particular prominence belongs to the microcomputer, known as the "personal computer." You might use a personal computer such as the Commodore 64 or Commodore 128 to help manage a small business, to do schoolwork, to plan the home budget, to keep records, to write, or even to play games. Knowledge of computer software applications, however, is not necessarily accompanied by knowledge of the computer hardware and its functions. Being a machine, the computer can malfunction and break down, just like any other device or appliance you might use. If you've had your computer for a while, and it's beginning to show signs of age and wear, you might have already experienced trips to a computer service center, with their disheartening repair bills. Although you are not a computer technician, and you do not know dc and ac electronics, you do feel you are capable of having more control over the care of your computer-saving yourself time and money. This book helps you attain that goal. You need no previous experience with computer programming or repair for this book to be useful to you. All you need is a conscientious desire to take better care of your Commodore and to diagnose problems as they emerge. This book provides you with three basic approaches to Commodore care: preventive maintenance, diagnostics when something goes wrong, and general repair once you discover the source of the problem.

Submitted by mhoney Commodore Care Manual

Upload: What's Really Inside the C64


The purpose of this book is to provide a detailed listing of the ROM contents for the Commodore 64 microcomputer. For programmers working in assembler language, or those wanting a more complete understanding of BASIC, this should prove to be very useful.

Submitted by mhoney What's Really Inside the C64

Upload: Commodore 64 Tune-Up


A computer is mostly used for data processing. These data comes very often from economics and is entered via the keyboard into the computer. A different kind of data comes from measurement. These data, which originate in an analog world must be adapted by transducers to the digital world. Therefore it is not only necessary to know all about computers, but a good knowledge of how to process analog signals is needed. The experiments described regarded only as examples, application in measurement distinct solution. in this book must be because every real must have a special, The Commodore C64 is an ideal computer for measurement. Data,can be easily accessed by the USER- or the Expansion port. The Time of Day clock can be used for real time applications. Have fun in controlling the analog world.

Submitted by mhoney Commodore 64 Tune-Up

If you own a C-64, this sourcebook is probably the most important "addon" you'll ever purchase! Packed with maintenance tips, easy troubleshooting procedures, and do-it-yourself repair techniques, it can save you untold time, money, and frustration over the lifetime of your micro. The simple chip changing instructions, alone, will enable you to cure at least 50% of the problems that cause micro breakdowns. Plus, Margolis gives you as much technical detail and advanced computer repair guidance as you're interested in acquiring! Advanced hardware enthusiasts and professional service technicians will both appreciate the in-depth examination of every C-64 circuit including timing diagrams.

Submitted by mhoney Troubleshooting and Repairing Your Commodore 64
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