Help please@ Trying to understand about computers

C

Compuern00b

New Member
Hi. I just started trying to learn more about how computers work -and I'm deeply confused as to how everything links together.

This is my understanding right now -->

When I save a document to wordpad or use the mouse ,etc
the APP communicates with Windows XP then Windows communicates
with BIOS which then communicates with the CPU that processes what needs
to be done and communicates back to the BIOS that then uses Drivers to
communicate with the IDE controllers to save the data to the Hard drive.


but what about with things like caches, RAM, interupters, etc Where do these fall in?


I keep on reading about it, but it seems different each time ...can somebody please help me to understand what happens each time an app is running or I click a mouse ex. the basic skeleton / feedback loop that occurs with each part like APP, BIOS, CPU, INTERUPTERS, RAM, CACHES, HARD DRIVE, IDEs. etc
just like in biology where you have a reflex arc and one thing leads to another ...ex. does the BIOS always communicate with the CPU and then the CPU back to the BIOS ?

I probably sound retarded lol ...









- Thanks
 
I've moved this to general computer chat.

The BIOS does the setup work but once it's all good to go windows can talk directly to the hardware. That is why drivers are written for the OS not for the BIOS, drivers are what let windows or unix or whatever OS talk to the device.

A cache is where stuff is stored for relatively fast access so that the computer doesn't have to grab it from it's original location (ie storing files on your hard drive so you don't have to go to the internet) everytime it's needed so it's faster
 
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