The Fire HD 8 comes preloaded with the Amazon Appstore, which defaults to the Amazon Underground version of the store. The Amazon Appstore is a curated version of Google Play, which means a smaller selection.
A: A single-user multitasking operating system is an operating system that allows a single user to simultaneously run multiple applications on a computer. This type of operating system is found in personal desktop and laptop computers. The most popular single-user multitasking operating systems include Microsoft Windows and Macintosh. Continue Reading
A multi-user system, by definition, supports concurrent processing of multiple tasks (once known as time-sharing) or true parallel processing if it has multiple CPUs. While batch processing systems often ran jobs for serveral users concurrently, the term multi-user typically implies interactive access. Before Ethernet networks were commonplace, multi-user systems were accessed from a terminal (e.g. a vt100) connected via a serial line (typically RS-232). This arrangement was eventually superseded by networked personal computers, perhaps sharing files on a file server.