Thursday, September 03, 2015
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
IBM and ARM Collaborate to Accelerate Delivery of Internet of Things
LG To Offer Amazon Titles In HDR On webOS Smart TV Platform
Qualcomm Details New Snapdragon 820 and Kryo CPU
IFA: Samsung Launches The "HumanFit" Wearable Platform
Panasonic To Showcase New Technics Products And THX-Certified OLED TVs At IFA
NHK To Showcase First 85-inch 8K LCD With HDR at IBC 2015
This Is The New Moto 360
Lenovo Yoga Tablets Feature A Built-in projector, New Phab Smartphones Look Impressive
Active Discussions
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
How to burn a backup copy of The Frozen Throne
Help make DVDInfoPro better with dvdinfomantis!!!
Copied dvd's say blank in computer only
menu making
Optiarc AD-7260S review
 Home > News > PC Parts > Read Th...
Last 7 Days News : SU MO TU WE TH FR SA All News

Wednesday, November 13, 2013
Read The 1978 Apple II Source Code


In June 1977 Apple Computer shipped their first mass-market computer - the Apple II - and Computer History Museum has posted online the interesting source code of the device.

The Apple II was fully assembled and ready to use with any display monitor. The version with 4K of memory cost $1298. It had color, graphics, sound, expansion slots, game paddles, and a built-in BASIC programming language.

What it didn't have was a disk drive. Programs and data had to be saved and loaded from cassette tape recorders, which were slow and unreliable. The problem was that disks - even floppy disks - needed both expensive hardware controllers and complex software.

Steve Wozniak solved the first problem. He designed an incredibly clever floppy disk controller using only 8 integrated circuits, by doing in programmed logic what other controllers did with hardware. With some rudimentary software written by Woz and Randy Wigginton, it was demonstrated at the Consumer Electronics Show in January 1978.

But where were they going to get the higher-level software to organize and access programs and data on the disk- Apple only had about 15 employees, and none of them had both the skills and the time to work on it.

The magician who pulled that rabbit out of the hat was Paul Laughton, a contract programmer for Shepardson Microsystems, which was located in the same Cupertino office park as Apple.

On April 10, 1978 Bob Shepardson and Steve Jobs signed a $13,000 one-page contract for a file manager, a BASIC interface, and utilities. It specified that "Delivery will be May 15", which was incredibly aggressive. But, amazingly, "Apple II DOS version 3.1" was released in June 1978.

If you want to take a look to the 1978 source code of Apple II DOS visit the www.computerhistory.org web site. As a note, the material is Copyright 1978 Apple Inc., and may not be reproduced without permission from Apple.




Previous
Next
Google Sites Led The October Search Market        All News        HP Halts Chromebook Sales Due To Overheating Issue
AMD Adds Beema And Mullins APUs To Its 2014 Mobile Chip Roadmap     PC Parts News      HP Halts Chromebook Sales Due To Overheating Issue

Get RSS feed Easy Print E-Mail this Message

Related News
Apple To Work With Cisco On Enterprise Environment; said To Prepare Own Original Programming
Apple Debuts at the Number Two Spot In Wearables Market, Behind Fibit
Apple To Announce New iPhones In Sept.9 Event
Apple Linked To Automotive Testing Facility
Apple to Delay Live TV Service: report
Apple Said To Host iPhone, iPad, Apple TV Event Next Month
Apple Music Has More Than 11 Million Members
Xiaomi Has Reclaimed Top Spot in China, Huawei Pushes Ahead of Apple
Apple Watch Coming To Best Buy stores
Smartphone Market Posts Year-Over-Year Growth in Q2 2015
Apple Reports Strong iPhone Sales, Watch Sales Still Unknown
Apple App Store, Apple Music Services Partially Down (Updated)

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2015 - All rights reserved -
Privacy policy - Contact Us .