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Tektronix 4010
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{{Short description|Text and graphics computer terminals}} {{Redirect|4014|the Union Pacific Railroad locomotive|Union Pacific 4014}} {{Infobox information appliance | name = Tektronix 4010 | image = Image:Tektronix 4014.jpg | caption = A Tektronix 4014 computer terminal. The support pedestal contained interface electronics. | manufacturer = [[Tektronix]] | type = [[Computer terminal]] | releasedate = {{Start date|1972}} | cpu = | display = [[Storage tube]] | input = [[Computer keyboard]] | connectivity = [[RS-232]], [[Digital current loop interface|current loop]], other proprietary protocols | predecessor = | successor = }} The '''Tektronix 4010''' series was a family of text-and-graphics [[computer terminal]]s based on [[storage tube|storage-tube]] technology created by [[Tektronix]]. Several members of the family were introduced during the 1970s, the best known being the 11-inch '''4010''' and 19-inch '''4014''', along with the less popular 25-inch '''4016'''. They were widely used in the [[computer-aided design]] market in the 1970s and early 1980s. The 4000 series were much less expensive than earlier graphics terminals, such as the [[IBM 2250]], because no additional electronics were needed to maintain the display on the storage-tube screen; images drawn to the screen remained there until deliberately erased. This eliminated the need for [[computer memory]] to store the images, which was expensive in the 1970s. The display series remained popular until the introduction of inexpensive [[graphics workstation]]s in the 1980s. These new graphics workstations used [[Raster graphics|raster displays]] and dedicated [[screen buffer]]s that became more affordable as [[Semiconductor memory|solid-state memory]] chips became markedly cheaper.
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