Dunno.
But two *states* is digital (aka binary) technology.
Binary computation.
Are you meaning "Binary"? I.e., On / Off, One / Zero, Yes / No?
If you want to store information that you do not want changed then transferring the information onto a CD or a DVD will do that. Information stored on these ways cannot be erased so once the information is on there it is read only
Reading habits have not diminished. It is only the traditional way of reading has diminished. People have caught up with technology and have started reading using the computer and the internet. The launch of I-pads, Blackberrys and tabloids have only modernised reading. Now people are reading E-books instead of paperbacks.
Technology includes almost everything you come into contact with - clothing, pure water, heat, food, furniture - the list goes on. If you used no technology you'd have to sit naked in a cave or open field eating only what you could dig up with your bare hands or kill by breaking its neck - in eaither case you'd have to enjoy it raw. Night would be kind of difficult if it were freezing (so would you) and daytime would be a bare handed competition with anything that might eat you. Then there's winter - no storing food. Summer - no storing water.
Reading seeing up close. Usually only a magnifier like a bifocal only
The only time you should calculate it instead of storing is when you only use that attribute once. Otherwise, store it to avoid repeating calculations.
Reading
do only one guided reading every day and from then on one guided reading will count as a session...
Carbohydrates :)
There are basically ONLY two types of wireless technology: analog and digital. ALL "wireless" technology is radio technology.
No there was no technology back then. To tell you the truth the only technology they had back then was probably lights. Not including electricity.