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Two AMD powered models were announced in 2009 — the 14" ProBook 6445b and the 15.6" ProBook 6545b; [35] Their Intel powered counterparts were announced three months later as the 14" ProBook 6440b and the 15.6" ProBook 6540b.; [36] and the next-year upgrade is an AMD-powered 6455b and 6555b, and Intel-based 6450b and 6550b.
A pointing stick on a mid-1990s-era Toshiba laptop. The two buttons below the keyboard act as a computer mouse: the top button is used for left-clicking while the bottom button is used for right-clicking. Optical pointing sticks are also used on some Ultrabook tablet hybrids, such as the Sony Duo 11, ThinkPad Tablet and Samsung Ativ Q.
HP EliteBook is a line of business-oriented laptop computers made by Hewlett-Packard (), [1] marketed as a high-end line positioned above the ProBook series. [2] The line was introduced in August 2008 [3] [4] as a replacement of the HP Compaq line of business laptops, and initially included mobile workstations until September 2013, when they were rebranded as HP ZBook.