4 ms·

thank you for your story, I am too early to understand such a case lol, but I get the idea, which means, a wire can hold current a while, but not forever, yes t

thank you for your story, I am too early to understand such a case lol, but I get the idea, which means, a wire can hold current a while, but not forever, yes this is clear, but why not just keep give the wires current flow? Then a "1" state stored! If we want to store another number, just use other wires! We have billions of transistors and bus wires right? Why a RAM is a must when we have near unlimited wires already ?

AnimalMuppet 8y ago
The wires are a "data bus", which connects multiple things. You could think of it as a street, which has multiple houses on it. Sure, I could use the street to store my stuff in, but then other people can't use the street to get to their houses. It's better that I store my stuff in my house. This leaves the street free so that multiple people can use it to get to and from multiple houses.
pwg 8y ago
> but why not just keep give the wires current flow? And... On a very abstract level, you've just designed a memory. A memory is a particular design of "wiring" [1] setup in such a way to keep the current flowing [2] to store the charge that represents the data. [1] There is more than just wires, as just wires alone can not store a charge for very long (example, plug in an extension cord, the extension cord output will be powered, unplug it, no power on the other end). [2] This is exactly the design of a SRAM chip. Wires and transistors connected together to "keep the current flowing" to hold the data represented by the charges.