One of the main services I provide is a computer maintenance session which is used to resolve many of the issues which cause system slowdowns. However on many an occasion, despite my best efforts, there is only a minor improvement in the systems responsiveness. This is caused by the systems not having a sufficient amount of RAM. Many systems which were bought several years ago were sold with an amount of RAM that although adequate for when the system was purchased, is now not enough. Every piece of software on the computer uses a certain amount of system resources. The Operating system itself requires a minimum amount of RAM to perform its functions. The problem often arises though that system updates and other programs place an additional burden on the system resources and over time these requirements grow and unless the system is upgraded then the system can begin to feel unresponsive.