Proximity sensors

COMPUTERS, COMPRISED OF CENTRAL PROCESSING UNITS, PROGRAMMED-DATA ENCODED ELECTRONIC CIRCUITS, BLANK MAGNETIC DISKS, BLANK MAGNETIC TAPES, OPTICAL DISKS, AND A CD-ROM WHICH STORES MANUALS FOR USERS; MOUSE FOR USE WITH COMPUTERS; KEYBOARD FOR USE WITH COMPUTERS; COMPUTER PERIPHERAL EQUIPMENT; VIDEO GAME DISCS AND CARTRIDGES FOR HOUSEHOLD USE; COMPUTER HARDWARE, NAMELY, A MOBILE COMPUTING DEVICE THAT ALLOWS FOR COMMUNICATION AND INTERNET ACCESS BETWEEN DEVICES; COMPUTER SOFTWARE, NAMELY, PROGRA...