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What do drivers actually do?

Everything between DirectX/OpenGL and the physical hardware is controlled by the driver. It handles video playback (to an extent), too.
 
RWTF3131 said:
:confused:
Click to expand...

not total sure what your asking so here is the basic gist of it, the drivers provide a layer between the hardware and the software (ether the game, cad program or operating system) This the software only has to make calls to a standardized set of instructions and the drivers translate this into the actual machine code for the hard ware. This way you don't have to program the software to handle the tens of thousands different hardware, just a few different standards. (opengl, dirrect X, even keyboards, mice and so on)

For things like graphics card the performance is critical. They can make or break the system performance.
 
They help tell the rest of the computer whats there and how to use it.
 
They drive the video card or let the computer be the driver that is driving the video card :p
 
Forr35t said:
Drivers are related to assembly code programming.
Click to expand...

Not really, no more than any program written in C/C++ is related to assembly code programming. Drivers are written in C/C++, not assembly.
 
956-067Terminator-2-Posters.jpg



:D




Drivers are used to identify hardware and tell the computer how and what to use.
 
Drivers tell the OS how to USE the hardware thats installed. Without some sort of driver installed the OS wont know what the hardware is or what it does.
 
Drivers don't tell the OS how to operate the hardware, they operate the hardware themselves. The OS just tells the driver what an application is wanting to do, and passes the information to the driver to get the job done.

Applications tell the OS what it wants to do through an API (such as DirectX). The OS hands the information over to the hardware driver. The driver then translate the information into instruction the hardware can execute and sends them to the device being "driven".
 
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