EntityQ7098899· pop 5· linked from 85 articlesOptical trackpadSign in to saveinput device used in smartphones instead of D-pad.ConnectionsSerial ATAEntitycomputerEntitycomputer mouseEntitysmartphoneEntityhard diskEntitycomputer keyboardEntitycomputer hardwareEntitycentral processing unitEntityprinterEntitycompact discEntityrandom-access memoryEntitymicrophoneEntitycomputer monitorEntityDVDEntitymotherboardEntityUSBEntityUSB flash driveEntityimage scannerEntityBlu-ray DiscEntitymicroprocessorEntityCategoriesPointing devices