The basic types of adapters are those that are used for storage, sound cards, video cards, network cards, modems, custom interface cards, etc. The most common external components that are found with every PC are the monitor, keyboard and mouse. Most of the newer models also come with speakers. The common keyboard of today has a layout very similar to the traditional typewriter. Another common peripheral is the printer.
Printers now come in a wide variety of types from many different vendors.
We have laser printers, dot-matrix printers, inkjet printers, thermal printers, etc. These may be in black and white, gray, one color or many colors. The choice is almost endless. The important thing to think about is don t buy more printer than you need. In the USC office environment most, if not all, of the computers are attached to the USC network.