There is an additional difference: Monotype "must" use a punched paper tape, and the "reading frame" is always backwards (right-to-left) in order to achieve justification, as justification is not an inherent capability of the machine (however, "flush left" "is" an inherent capability); whereas Linotype "may" use a punched paper tape, although this option is seldom-used outside of daily newspapers, and whether a tape is used, or not, the "reading frame" is always forwards (left-to-right), with justification being an inherent capability of the machine (and, "flush right", "centered" and "flush left" may be very easily accommodated manually, or automatically using a "quadder" attachment).