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Landscape mode is commonly used to print charts or images that may not fit properly in portrait orientation. Subscript text should be halfway below the bottom line of normal text. Firefox was first introduced in 2002 and released as version 1.0 in 2004. Refresh refers to renewing the screen contents. The mouse was invented by Douglas Engelbart in 1963 while working at Xerox PARC and Stanford Research Institute to develop a graphical user interface.









