Desktop computers, mobile phones, portable media players, handheld computers, wearable digital electronic devices in the form of a smart watches, magnetic encoded wristbands and bracelets, and eye glasses capable of providing access to the Internet, for storage and transmission of data, messages, and phone calls, and for keeping track of and managing personal information; Computer application software for mobile phones, namely, software for erasing installed caches and residual files, for managing applications and background tasks and for managing user history; Computer application software for tablet computers, namely, software for erasing installed caches and residual files, for managing applications and background tasks and for managing user history; Downloadable software for erasing installed caches and residual files, for managing applications and background tasks and for managing user history; downloadable computer antivirus software; Computer security software for the security or encryption of communications and data transmissions; computer privacy software; Software for cooling and preventing overheat of computers and mobile devices; Optimization software for boosting memory capacity, processing speed, and battery consumption of computers and mobile devices; Software for managing and backing up application software installed on computers and mobile devices; Software for optimizing access and system operation of computers and mobile devices; Software for deduplication of photos