Sorry to say you cannot. You would need to increase the size of your graphics card. That is if its a card.
If its onboard graphics, then in the bios, you will see a graphics tab. Increase this to add some memory to the graphics.
But in doing this, your detracting from your ram. And this could mean a memory upgrade.
No you can't. Your system memory is something completely different than the memory used by USB Drive.
ReadyBoost
with motherboards
Plug in you USB flash drive to the USB port and go to MY COMPUTER, then RIGHT CLICK on the DEVICE and click on READY BOOST
You will need to take your iMac apart and replace the hard drive. A better solution is to connect an external hard drive to your Mac via the Firewire port.
A hard drive is static or nonvolatile memory.
flash memory drive
It depends on what kind of computer and how powerful it is but generally when buying a computer there will be a number for memory and hard drive the memory is how much room your have for open programs/clipboard /files open etc. the more memory the better especially if you multitask 4gb is a good amount the hard drive is storage for files such as music picture documents and programs again the more you can get in your price range the better but focus more on the memory to have a fast computer
Memory Diagnostics (mdsched.exe). -------------------------- You are better testing memory outside of your OS. Use a program such as Memtest86 from a bootable medium (such as a floppy, CDRom, or bootable flash drive)
personally i'd say buy an external hard drive, as it will be much easier
Temporary as in memory, no, but you should probably stick to a flash drive or even e-mail is better.
Flash drive