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DOS 4.3 File Management System

Condition:
Brand New
Price:
US $64.35
ApproximatelyC $88.22
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Located in: fl, United States
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Estimated between Sat, Jun 8 and Wed, Jun 12 to 43230
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eBay item number:256495197538
Last updated on Apr 29, 2024 17:50:16 EDTView all revisionsView all revisions

Item specifics

Condition
Brand New: A new, unread, unused book in perfect condition with no missing or damaged pages. See the ...
ISBN
9780578715476
Publication Year
2020
Type
Textbook
Format
Hardcover
Language
English
Publication Name
Dos 4.3 File Management System
Author
Walland Vrbancic Jr.
Publisher
Vrbancic JR, Walland Philips

About this product

Product Information

This publication describes the process and products I created when I decided to design and program an enhanced Disk Operating System (DOS) for my Apple //e. Wherever I am able, I have included code samples, schematic diagrams, equations, figures, tables, and representative screen shots to help explain what I have created and the reasons why I did so. As in my previous design of an Apple ] DOS, i.e. DOS 4.1L and DOS 4.1H that I released in 2018, this has been an incredible journey for me. With DOS 4.3, I have again re-imagined that time when I mostly lived, breathed, and worked on Apple ] hardware and software development continuously for a good period of my life many, many years ago. The list that follows are some of the features that I have engineered into the DOS 4.3 File Management System. DOS 4.3 boots directly into Language Card memory and sets HIMEM to 0xBE00. All five file buffers are fully contained in Language Card memory. DOS 4.3 supports the full integration of the Lisa and Big Mac assemblers in Auxiliary Memory. Both assemblers now support the full 65C02 instruction set. Sourceror and Big Mac both support all SWEET16 opcodes. My ROM image supports the 65C02, SWEET16, and GARBAGE based on Bongers' algorithm. DOS 4.3 supports most Clock Cards which play an integral role in Volume and File timestamps. Volumes may be titled, numbered, locked, and initialized to boot or to store data exclusively. Even track 0x00 is used for data. Files are loaded and saved using an acceleration algorithm. DOS 4.3 supports Applesoft CHAIN, File DIFF, File GREP, File LIST, File Undelete, Sector Display, Sector Modify, Syntactical HELP, DOS Processing Control, Variable Management, Half-Phase Tracking, and full lowercase command and argument input. DOS 4.3 copies files using a modified FID that accepts Volume and Phase Number parameters. DOS 4.3 can read DOS 3. Volumes and files. DOS 4.3 can initialize Volumes with up to 48 tracks having either 16 or 32 sectors per track. All the source code and all the schematics can be requested through www.applecored.net.

Product Identifiers

Publisher
Vrbancic JR, Walland Philips
ISBN-10
0578715473
ISBN-13
9780578715476
eBay Product ID (ePID)
17050072630

Product Key Features

Author
Walland Vrbancic Jr.
Publication Name
Dos 4.3 File Management System
Format
Hardcover
Language
English
Publication Year
2020
Type
Textbook

Additional Product Features

Target Audience
Scholarly & Professional
Topic
General
Genre
Computers

Item description from the seller

WHOLESALEBOOKWORLD

WHOLESALEBOOKWORLD

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