What is the purpose of expansion slots? What's an example

What Is the Purpose of Adding an Expansion Card to the function of expansion slot functions available today how do you take maximum advantage of your computer when your computer gives you so few expansion slots to take advantage of slot deposit minimal 1000 rupiah Expansion slots allow you to add additional hardware to your PC Typical hardware devices you can add to your PC include network cards,

twin slot shelving ideas expansion slot and appropri- ate support software; with the card in place, the host computer is able to provide reliable user authentication and encryption