CPU stands for central processing unit. It is the most important element of a computer system. The clock speed is the term used to measure the power of a CPU
By default, your virtual memory is in your C drive. It is better to move it to another partition, suhc as D or E. To change it, right click on "my computer" and select properties, click on advanced tab, go to the first settings tab, select 'advanced' tab again. Here you will be able to change the path to your virtual memory.