Editing Dot matrix (section)

===All points addressable===
All points addressable (APA), or pixel addressable, in the context of a dot matrix on a [[computer monitor]] or any [[display device]] consisting of a [[pixel]] array, refers to an arrangement whereby bits or cells can be individually manipulated, as opposed to rewriting the whole array, or regions such as characters, every time a change is needed.<ref name=ibm>{{Citation
 | last1 =  Matick
 | first1 = R.
 | last2 =  Ling
 | first2 = D. T.
 | last3 = Gupta
 | first3 = S.
 | last4 =  Dill 
 | first4 = F.
 | title = All points addressable raster display memory
 | journal = IBM Journal of Research and Development
 | volume = 28
 | issue = 4
 | pages = 379
 | date = 2006
 | doi = 10.1147/rd.284.0379
 | orig-year = 1984
 | access-date=2013-09-28
 | url = http://domino.research.ibm.com/tchjr/journalindex.nsf/600cc5649e2871db852568150060213c/e09f8b694a6fc5b685256bfa0067f5d9 }}</ref><ref name=mit>{{Citation
 | last = Gonzalez
 | first = John Cambell
 | title = Implementing a window system for an all points addressable display
 | publisher = [[Massachusetts Institute of Technology]]
 | editor-last =  Zippel
 | editor-first = Richard E.
 | date = 1982
 | hdl = 1721.1/27922
 | type = Thesis
 }}</ref>

Generally, [[text mode]]s are not all-points-addressable, whereas graphics modes are.<ref name=mit/> With the advent of more powerful computer graphics hardware, the use and importance of text-only display modes has declined, and with graphics modes it is generally taken for granted that they are all-points-addressable.