Oral delivery systems including at least one encapsulated active are provided. The cooling fluid circulates internally through the fuel injector to cool a single pole solenoid via both internal and peripheral cooling passages. A locking mechanism is provided for preventing the thumb skeleton sections from bending backwards, thereby preventing hyperextension of the wearer’s thumb. The inner wall is eccentric with respect to the outer wall so that the cross-sectional area of the interior passage varies about the bore. Each of the computers downloads at least one operating system image file to the second partition of the storage device of the computer from the server via network.