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| <!--#REDIRECT [[:Category:4000-Series Terminals]] -->
| | '''Main article: [[4100-Series Terminals]]''' |
| Regarding the '''Tektronix 4100-Series terminals''', ex-Tek employee Dave Brown recalls:
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| <blockquote>
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| The 4100 series was an intelligent family of terminals that added segment capability to Tek Graphics.
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| They would fully emulate the [[4010]]/[[4014]] family.
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| Segments allowed you to define a graphic object or string and display it.
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| Rather than going back to the host to redraw, you could change the viewport to zoom
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| and pan and it would do so from the stored data.
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| The [[4114]] was a [[DVST]] so limited to vectors.
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| Others in the family were the [[4012]] mono raster,
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| [[4013]] color raster, and [[4115]] high resolution color with auto convergence.
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| They had some 3D models as well.
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| With the raster products you had the ability to define polygons
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| and the ordering would handle hidden line and polygons if I remember right.
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| They also handled shading and patterns.
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| As such, I don’t know how much of this propagated to the 4114.
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| I suspect if you defined a polygon it would draw the outline.
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| Segments could also be stored on the floppy disks and recalled.
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| I suspect you could do forms and such also but after 40 years I just don’t recall the details.
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| I was buried down in the hardware and OS and never really used them for graphics.
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| We might have a brochure on them although the catalogs probably have a good overview description.
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| I wasn’t close to the vector generator design.
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| I do know you needed it fast and you wanted a constant velocity so line thickness would be uniform.
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| There was usually a lot of circuitry to deal with D/A glitches and the like.
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| Hardcopy and write-through also added challenges.
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| Then of course they had to deal with idiosyncrasies of the 4014.
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| The 4014 supported 132 characters in alpha mode.
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| But you could position the beam at the far right, put it back into alpha,
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| and print a character in the 133 column so of course they had to support that.
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| There were a few others.
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| </blockquote>
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