E-Board is a pocket portable, thin, light, small digital data input device, for use primarily by PDAs, cell phones or other mobile communicating computers (MCC). It has several versions, such a one pad or multi pad, integral to or detachable from MCC or even adhered to and covering the screen of MCC. It can encompass functions such as stylus, scroll, handwriting pad, etc. , freeing much needed space for a larger screen. It can act also as MCC cover. Several techniques and devices are introduced that have also uses beyond MCC.