Editing ASCII art (section)

===Line-printer art===
In the 1960s, [[Andries van Dam]] published a representation of an electronic circuit produced on an [[IBM 1403]] [[line printer]].<ref>[http://www.computer.org/csdl/proceedings/afips/1967/5069/00/50690601.pdf "A compact data structure for storing, retrieving and manipulating line drawings"] by Andries Van Dam & David Evans</ref> At the same time, [[Kenneth Knowlton]] was producing realistic images, also on line printers, by overprinting several characters on top of one another.<ref name="sip1"/>
Note that it was not ASCII art in a sense that the 1403 was driven by an [[EBCDIC]]-coded platform and the character sets and trains available on the 1403 were derived from EBCDIC rather than ASCII, despite some glyphs commonalities.