noun. 
                    undefined
                  
                
                  
                    noun. 
                    A device that computes, especially a programmable electronic machine that performs high-speed mathematical or logical operations or that assembles, stores, correlates, or otherwise processes information.
                  
                
                  
                    noun. 
                    Such a device along with peripherals, especially a monitor, keyboard, and mouse.
                  
                
                  
                    noun. 
                    One who computes.