An imaging lens includes a first lens group having positive refractive power; a second lens group having positive refractive power; and a third lens group having negative refractive power, arranged in this order from an object side to an image plane side. In one embodiment a multi-layer substrate comprises a conductor or pair of conductors, a first dielectric layer on a first side of the conductor or pair of conductors and a second dielectric layer on a second side of the conductor or pair of conductors. The keyboard has a plurality of fixing pieces. The enterprise suite helps keep the networked computers updated and properly patched, all from a central console which, along with supporting architectural enhancements, is the subject matter of this document. The pivot axle is arranged offset relative to a center of gravity of the load carrier.