Flow of information in computer system?

Question

Flow of information in computer system?

Answer 1

Basically, the CPU is the brain.  It asks a question, if the question is simple the CPU can answer it itself, if more complex it asks outside (DRAM, hard drive, network/internet, keyboard, mouse) to get the data to answer, which goes back to the CPU.  It can then return data to these same devices. At certain points it displays information out to the screen.

Answer 2

The informations flows within a computer from the hard disk to the Southbridge chip(drive controller) on the motherboard then it goes to the Northbridge Chip (system memory controller) then it goes to the DRAM Chips (on the memory stick) then it goes to the CPU Chip Level 2 Cache Buffer SRAM then it goes to the CPU Chip Level 1 Primary Execution Cache Buffer SRAM Memory then it goes to the CPU Chip Execution Units for Processing and gets sent back to the Northbridge which either sends it back to the RAM to be stored for later use or through the AGP Slot (Accelerated Graphics Port) into the VRAM, then on to the GPU (graphics controller), then on to the RAMDAC which converts it to a signal which can be interpreted by your display.

This is worst case scenario, in the best case scenario some of these steps would be bypassed.