Please create an account to participate in the Slashdot moderation system

 


Forgot your password?
Close
typodupeerror
The Internet

Verizon Changes FiOS AUP, -1, Offtopic 560

Posted by timothy from the get-ready-for-municipal-broadband dept.
RasputinAXP writes "Verizon has changed their FiOS AUP effective yesterday, and added an interesting new clause to their specific examples that we're all familiar with: 'it is a violation of the Agreement and this AUP to ... post off-topic information on message boards, chat rooms or social networking sites.' At this point, every FiOS-based Slashdot user is breaking the new AUP."
Space

How They Built the Software of Apollo 11 220

Posted by kdawson from the we-had-to-use-the-letter-o dept.
LinuxScribe tips a piece up at Linux.com with inside details on the design and construction of the Apollo 11 code. There are some analogies to open source development but they are slim. MIT drafted the code — to run on the Apollo Guidance Computer, a device with less grunt than an IBM XT — it had 2K of memory and a 1-MHz clock speed. It was an amazing machine for its time. NASA engineers tested, polished, simulated, and refined the code. "The software was programmed on IBM punch cards. They had 80-columns and were 'assembled' to instruction binary on mainframes... and it took hours. ... During the mission, most of the software code couldn't be changed because it was hard-coded into the hardware, like ROM today... But during pre-launch design simulations, problems that came up in the code could sometimes be finessed by... computer engineers using a small amount of erasable memory that was available for the programs. The software used a low-level assembly language and was controlled using pairs or segments of numbers entered into a square-shaped, numeric-only keyboard called a Display and Keyboard Unit... The two-digit codes stood for 'nouns' or 'verbs,' and were used to enter commands or data, such as spacecraft docking angles or time spans for operations." Reader Smark adds, "The Google Code Blog announced today that the Virtual AGC and AGS project has transcribed the Command Module and Lunar Excursion Module code used during the Apollo 11 moon landing. The code is viewable at the VirtualAGC Google Code Page."

Comment Uh... (Score 1, Funny) 393

by phoenix0783 (#27436947) Attached to: Harvard Law's Nesson Says P2P Is "Fair Use"
Uh...

A reviewer may fairly cite largely from the original work, if his design be really and truly to use the passages for the purposes of fair and reasonable criticism. On the other hand, it is as clear, that if he thus cites the most important parts of the work, with a view, not to criticize, but to supersede the use of the original work, and substitute the review for it, such a use will be deemed in law a piracyâ¦

Slashdot Top Deals

Real Programs don't use shared text. Otherwise, how can they use functions for scratch space after they are finished calling them?

Close