What is the process of disable/enable the internal speaker?

Please help.

When I want to reset or up date my computer BIOS it should be reboot. What can I do?

 I want to see how much video ram or memory my video card has? Please help.

Some times windows tell me that your virtual memory is too low, how I can see the windows virtual memory?

Yesterday morning when start my computer I sow that my computer has no sound. Please help.

What are the three (3) advantages and disadvantages of blocking and non- blocking I /O base on its uses? Could it be possible to choose only one, the non-blocking I/O and have the process busy waiting for the device to become ready?  Which is more  advantageous to use the blocking IO/ or the non- blocking I/O?  Please explain why? Thank you.

I backed up my computer files to an external hard disk drive in case my computer crashes and I need to reformat it.

Can you give my help me on how to back up my browser as well?

I got this error message (see below) when I was using Croquet on my laptop.  I tried reinstalling but the same thing happened.   Actually, I just got a new NVIDIA graphics card and of course installed the driver.  It seemed the graphics card and Croquet software do not match.  Any advice on what to do next?  Hope you can guide me thru it.  Thanks in advance.

Fatal VM error

Sorry but the VM has crashed.

Exception code: C00000FD

Exception address: 69929A87

Current byte code: 241

Primitive index: 120

This information will be stored in the file

I have an urgent problem.  My cell would not switch on. No matter what I do, I could not use it.  It started when I accessed my rom manager.  I pushed the backup rom button and then the phone turned off.  Since then, I could not turn it on.  Do you have any idea to help me so I could use my phone again?  Thanks!

Hi!  I would like to ask your expert opinion on this.  I am a student who likes photography.  I am currently the proud owner of a Canon XT/350D.  However, it was recently overshadowed by a T2i which is owned by a friend of mine.  It seems that the T2i has better colors and the pictures have better output than what I had.  We even took the same pictures to compare and I thought that his were better.  Is it just me or is T2i really better?  Is it advisable for me to do an upgrade?  I am still a student so I do not have a lot of cash.  But still, I really do love photography.  Any advice?