Jailbreaking is the process of removing hardware restrictions on iOS, Apple's operating system, on devices running it through the use of software and hardware exploits; such devices include the iPhone, iPod touch, iPad, and second-generation Apple TV. Jailbreaking permits root access to the iOS file system and manager, allowing the download of additional applications, extensions, and themes that are unavailable through the official Apple App Store. Jailbreaking is a form of privilege escalation, and the term has been used to describe privilege escalation on devices by other manufacturers as well...

The Cherokee syllabary is a syllabary invented by Sequoyah to write the Cherokee language in the late 1810s and early 1820s. His creation of the syllabary is particularly noteworthy in that he could not previously read any script. He first experimented with logograms, but his system later developed into a syllabary. In his system, each symbol represents a syllable rather than a single phoneme; the 85 (originally 86) characters in the Cherokee syllabary provide a suitable method to write Cherokee. Some symbols do resemble Latin, Greek and even the Cyrillic scripts' letters, but the sounds ar...