Any device added to a computer that performs an additional feature, but is not required. A good example of an accessory is the computer printer, which gives the computer the ability to print, but the computer would still work if it didn't have the printer. Below, is a listing of computer accessories.
Most desktop computers come with a cheap keyboard and mouse as standard. These are usually basic models which may have poor ergonomics or be unpleasant to use.
People who spend all day typing or using the mouse on their computer may see significant benefits from a better keyboard and mouse. It’s not just about being comfortable – conditions like repetitive strain injury and carpal tunnel syndrome are associated with poor ergonomics.