Sunday, March 01, 2015
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
New Draft Bill Focuses On Consumer Data Privacy
Uber Says Breach Affected 50K Drivers
Google Showcases Future Silicon Valley Headquarters
Lenovo Offers Free McAfee LiveSafe Following Superfish Security Concerns
Yahoo Gains Search Share
Twitter To Offer More User Safety Features
Google to Start Ranking Mobile-friendly Sites Higher
Qualcomm Extends LTE to Unlicensed Spectrum to Enhance Mobile Experiences
Active Discussions
Need serious help!!!!
burning
nvidia 6200 review
Hello
Burning Multimedia in track 0
I'm lazy. Please help.
sanyo e6 camera
need help on some cd burning...
 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
Ericsson Sues Apple Over Patent Infringement
Apple To Hold Watch Event on March 9
Apple To Pay $533 million for Patent Infringement
Apple to Invest 1.7 Billion Euros in New European Data Centres
Apple Granted Patent For A Head-mounted iPhone Virtual Reality Display
Apple Said To Have Dropped Some Health Monitoring Functions In Apple Watch
New Apple iWork Apps Run On PCs Too
More Reports Emerge On Apple's Secret Automotive Project
Icahn Says Apple Worth $216 Per Share
Is Apple Working on a Car?
Apple May Launch New Notebooks This Month: report
Apple Picked Samsung To Make Next iPhone Chip: report

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 .