After a PC is booted up,the computer waits to receive input from the user regarding what activity he or she would like to perform first. The manner in which an operating system or any other type of program interacts with its users is known as its users interface. Older software programs used a text-based user interface, which required the user to type precise instructions indicating exactly what the computers should do. Most programs today use a graphical user interface or GUI (pronounced”goo-