Firstly quit all running applications before running any of our programs. There are many reasons for this, but the following are the most important:
RAM - Random Access Memory. This is a number that indicates the amount of physical memory available to your computer. The more physical RAM available when running a program the better. The less programs that you run at the same time, the more memory is available. Modern operating systems can use a trick called "virtual memory" to increase the amount of memory available. Each o/s handles virtual memory differently, but the idea is that when all the physical RAM is used up, it starts using a hard disk as a kind of backup RAM. Virtual memory can be significantly slower than physical RAM, so it is always a good idea to quit all applications before running any of our programs.
Being multimedia programs with hundreds of megabytes of sounds and graphics in each, the more physical RAM available the better.
Note: RAM capacity is usually quoted in terms of megabytes (Mb). Hard disk capacity is usually quoted in terms of gigabytes (Gb). They are not the same thing.
Program conflicts & crashes - The more programs that are running at one time, the more things that can go wrong resulting in a system crash that may require you to restart your computer.
Speed - The more applications running, the more the computer has to think about. The less applications running, the more time the computer has to think about sounds and animations.
Please also refer to the sections in this FAQ on Anti-virus programs and screen savers.