Pharmaceutical compositions for treating multiple sclerosis are disclosed comprising an amount of vitamin B12, vitamin B12 analogues, vitamin B12 derivatives, vitamin B12 conjugates or mixtures thereof in combination with interferon. For additional variation in clock rate, two or more different central clocks can be provided, with each channel then being able to divide any of the central clocks to provide the desired local clock. The communication terminals also comprise a transceiver which can form ad-hoc communication links with other communication terminals. The card slot has a window opened so as to expose a required part of the memory device when the memory device is loaded in the controller. The data-analyzing device thereafter sends instructions to the dispensing machine for dispensing the second product. The problem of \u201cwrite buffer latency\u201d is resolved, and is irrelevant to the level of the PCI bus.