Think about your computer’s memory, or RAM, as short-term memory. When you have an application open, it uses the memory. The more memory your computer uses, the slower and less efficient your computer runs. Low memory on a laptop means not being able to use many applications at once or not being able to have as many files open at the same time. Upgrading your memory will allow you to open whatever files and applications you need without sacrificing speed.
Note: does not include price of memory.