HP Brio 81XX hp brio 81xx, upgrade guide - Page 10

1 Why Upgrade? Upgrading Your HP PC Upgrading Your HP PC Main Memory Video Memory Cache Memory Your computer uses some of the latest hardware technology to achieve outstanding performance. If required, performance can be even further enhanced thanks to this computer's upgradable design. Main memory is the workspace of the computer. It is in this workspace that the processor stores all work in progress. You can increase the size of the computer's workspace by adding more main memory. To find out more about upgrading the main memory, refer to "Upgrading the Main Memory" on page 12. Video memory stores everything that you see on your computer screen. In order to provide a solid image on the screen, the screen has to be continually refreshed. The computer's graphics system uses the image stored in video memory to refresh the screen. Increasing the amount of video memory enables higher screen resolutions, higher refresh rates and many more colors for existing resolutions, enhancing and accelerating graphics-intensive applications. To find out more about upgrading the video memory, refer to "Upgrading the Video Memory" on page 13. Cache memory is used by processors to accelerate access times for frequently used data and instructions. For example, cache memory keeps a copy of the last data read or written by the processor. If the same data is requested again by the processor, it is supplied from the cache, and not main memory, at a reduced access time. To find out more about upgrading the cache memory, refer to "Upgrading the Cache Memory" on page 14. 10