I'd recommend against using those and use ones that don't have such a large carbon footprint. For example:
http://www.bbc.com/news/uk-sco...
or solar:
http://www.reuters.com/article...
so long as you realize that the myth that solar panels generate more CO2 lifetime than say coal (or even natural gas) has long ago been de-bunked. (max 72g vs 1.68lbs or 2lbs for coal) (http://www.edfenergy.com/energyfuture/energy-gap-climate-change/solar-and-the-energy-gap-climate-change and http://www.eia.gov/tools/faqs/...)
WordStar and Lotus 123 were the killer apps of DOS until Windows reared it's head.
That just means that you never used PC Write. No one went back to WordStar after using PC Write. No one. There was even a way to get it to pause (now I've long forgotten how) so you could change the daisy wheel to get symbols.
IIRC the story is that Bob Wallace (http://en.wikipedia.org/wiki/Bob_Wallace) would always carry the one-and-only source code floppy with him at all times. He kept it on the passenger seat when driving. Supposedly at some point the floppy failed and he wrote the code to read/write raw floppy disk sectors to recover the source code. That feature was subsequently a part of PC Write.
A morsel of genuine history is a thing so rare as to be always valuable. -- Thomas Jefferson