Technology is awesome, right?
What new technology has impressed you, or what new technology are you waiting for?
Obviously this will tend to be computer-based, but it doesn't have to be.
Personally, I like how RAM works; IIRC it's an array of capacitors. Charged -> 1, uncharged (or discharged) -> 0. Therefore if you have 8 capacitors which are in the sequenced
charged uncharged charged charged uncharged charged uncharged charged
you have
10110101 -> 181.
I think that's how it works anyway. It may be something other than capacitors, like transistors. Capacitors would make sense though; because the contents of RAM doesn't disappear immediately when you shut it off; it actually fades away very quickly. This would make sense because capacitors hold a charge for a small amount of time.
http://en.wikipedia.org/wiki/Capacitor
"
A capacitor can store electric energy when disconnected from its charging circuit, so it can be used like a temporary battery. Capacitors are commonly used in electronic devices to maintain power supply while batteries are being changed. (This prevents loss of information in volatile memory.) |
"
If it was transistors I don't think it would be volatile; I think that's how solid-state drives work.
http://en.wikipedia.org/wiki/Transistor#Transistor_as_a_switch
I am also interested in how CPUs work, although all I know about that is that it tends to be lots of transistors and logic gates (which are made up of transistors anyway, I think).
It looks like I was half right about RAM; it's actually a capacitor
and a transistor that make up a bit;
http://www.howstuffworks.com/ram.htm (I wasn't expecting this to go into anything technological, but actually, it does):
a transistor and a capacitor are paired to create a memory cell, which represents a single bit of data. The capacitor holds the bit of information -- a 0 or a 1. The transistor acts as a switch that lets the control circuitry on the memory chip read the capacitor or change its state. |