Bit-mapped display - Revision history

Jnc: Avoid redir

2025-04-09T15:31:55Z

Avoid redir

Larsbrinkhoff: E&S frame buffer, per Jonathan Gray.

2025-01-18T09:20:25Z

E&S frame buffer, per Jonathan Gray.

Larsbrinkhoff: /* Early Examples */ SuperPaint at PARC, suggested by Jonathan Gray.

2025-01-18T07:25:57Z

‎Early Examples: SuperPaint at PARC, suggested by Jonathan Gray.

Larsbrinkhoff: Typo found by Jonathan Gray.

2025-01-18T07:21:43Z

Typo found by Jonathan Gray.

Larsbrinkhoff: /* Early Examples */ Two Knight TV offshoots.

2025-01-17T06:10:37Z

‎Early Examples: Two Knight TV offshoots.

Jnc: Link 'resolution'

2024-02-27T10:21:37Z

Link 'resolution'

Larsbrinkhoff: /* External links */ Noll article.

2024-02-27T07:10:59Z

‎External links: Noll article.

Jnc: /* Early Examples */ Link Knight TV

2024-02-05T16:20:56Z

‎Early Examples: Link Knight TV

Jnc: /* External links */ Add titles

2024-02-05T16:16:25Z

‎External links: Add titles

Larsbrinkhoff: dab

2023-08-09T05:42:28Z

dab

@@ Line 40: / Line 40: @@
 * [https://dl.acm.org/doi/pdf/10.1145/362566.362567 "Scanned-Display Computer Graphics"], by A. Michael Noll
-* [[MIT]] Knight TV videos:
+* Knight TV videos:
 ** [http://projects.csail.mit.edu/video/history/aifilms/x05-graphics.mp4 GRAPHICS bkph]
 ** [https://www.media.mit.edu/videos/144-lisp-logo-demonstration-henry-liberman/ LISP LOGO Demonstration]

@@ Line 31: / Line 31: @@
 |-
 | 1974 || Logo TV || MIT Logo group || Ron Lebel || 576x454
 |-
 | 1976 || Plasma TV || MIT Plasma "something" || James L. Kulp ||
 |}
 ==External links==
@@ Line 48: / Line 45: @@
 * [[Stanford Artificial Intelligence Laboratory|SAIL]] Data Disc video:
 ** https://archive.org/details/cst_000027
 [[Category: Device Basics‎‎]]

@@ Line 27: / Line 27: @@
 |-
 | 1973 || [[Knight TV system|Knight TV]] || [[MIT Artificial Intelligence Laboratory|MIT AI Lab]] || Tom Knight || 576x454
 |-
 | 1974 || Logo TV || MIT Logo group || Ron Lebel || 576x454
@@ Line 32: / Line 34: @@
 | 1976 || Plasma TV || MIT Plasma "something" || James L. Kulp ||
 |}
 ==External links==

@@ Line 3: / Line 3: @@
 The [[video display]] has an [[array]] of [[pixel]]s, each one of which can be independently set - in most contemporary units, to a color value defined by three 8-[[bit]] intensity values, one for each primary colour (red, green and blue).
-Originally, before [[semiconductor]] [[Random Access Memory|RAM]] prices fell, bit-mapped dislays provided fewer bits per pixel; originally only one bit per pixel. (Some low-end or low-power displays still provide only this.) At an intermediate stage, an 8-bit value for each pixel was used: either for a grey-scale; or for a limited number of colours. (I.e. only 256 distinct colours could be in use at any time, although each colour could be selected arbitrarily, and mapped into three 8-bit values, as above.)
+Originally, before [[semiconductor]] [[Random Access Memory|RAM]] prices fell, bit-mapped displays provided fewer bits per pixel; originally only one bit per pixel. (Some low-end or low-power displays still provide only this.) At an intermediate stage, an 8-bit value for each pixel was used: either for a grey-scale; or for a limited number of colours. (I.e. only 256 distinct colours could be in use at any time, although each colour could be selected arbitrarily, and mapped into three 8-bit values, as above.)
 The [[resolution]] depends in part on the physical size of the screen; and in the early stages, also on RAM cost. Some early displays were as little as 320×200; later on, 1024x768 pixels was widespread, and then 1280x1024. As the screen [[aspect ratio]] of [[high-definition television]] has become common, resolutions such as 1280×720 and 1920×1080 have become more common.

@@ Line 27: / Line 27: @@
 |-
 | 1973 || [[Knight TV system|Knight TV]] || [[MIT Artificial Intelligence Laboratory|MIT AI Lab]] || Tom Knight || 576x454
 |}

@@ Line 5: / Line 5: @@
 Originally, before [[semiconductor]] [[Random Access Memory|RAM]] prices fell, bit-mapped dislays provided fewer bits per pixel; originally only one bit per pixel. (Some low-end or low-power displays still provide only this.) At an intermediate stage, an 8-bit value for each pixel was used: either for a grey-scale; or for a limited number of colours. (I.e. only 256 distinct colours could be in use at any time, although each colour could be selected arbitrarily, and mapped into three 8-bit values, as above.)
-The resolution depends in part on the physical size of the screen; and in the early stages, also on RAM cost. Some early displays were as little as 320×200; later on, 1024x768 pixels was widespread, and then 1280x1024. As the screen [[aspect ratio]] of [[high-definition television]] has become common, resolutions such as 1280×720 and 1920×1080 have become more common.
+The [[resolution]] depends in part on the physical size of the screen; and in the early stages, also on RAM cost. Some early displays were as little as 320×200; later on, 1024x768 pixels was widespread, and then 1280x1024. As the screen [[aspect ratio]] of [[high-definition television]] has become common, resolutions such as 1280×720 and 1920×1080 have become more common.
 To provide the ability to draw things at high speed, thereby fully utilizing the capabilities of the display, they are usually directly connected to the computer's main [[bus]], with the display memory directly visible to the [[Central Processing Unit|CPU]] as [[main memory]]. Due to the intimate relationship with the rest of the system, they are usually found on [[personal computer]]s.
@@ Line 11: / Line 11: @@
 The original bit-mapped displays were an evolution of [[video terminal]]s; once RAM prices fell low enough, the ability to display graphics, etc, instead of just characters, made the step forward inevitable.
-===Early Examples===
+==Early Examples==
 {|

@@ Line 18: / Line 18: @@
 | 1967 (prototype) || [[PLATO]] IV plasma display || University of Illinois at Urbana–Champaign || Bitzer, Slottow, et al || 512x512
 |-
-| Late 1960s || || Bell Labs || A. Michael Noll || 240x255
+| Late 1960s || || [[Bell Laboratories]] || A. Michael Noll || 240x255
 |-
-| 1971 || [[Data Disc]] || [[Stanford AI Laboratory]] || || 512x480
+| 1971 || [[Data Disc]] || [[Stanford Artificial Intelligence Laboratory|Stanford AI Lab]] || || 512x480
 |-
 | 1972 || GEM || Yale University || Peter Weiner et al || 576x454
 |-
-| 1973 || [[Alto]] || [[Xerox PARC]] || Chuck Thacker || 606x808
+| 1973 || [[Xerox Alto]] || [[Xerox PARC]] || Chuck Thacker || 606x808
 |-
-| 1973 || Knight TV || [[MIT AI Laboratory]] || Tom Knight || 576x454
+| 1973 || [[Knight TV system|Knight TV]] || [[MIT Artificial Intelligence Laboratory|MIT AI Lab]] || Tom Knight || 576x454
 |}

@@ Line 34: / Line 34: @@
 ** http://projects.csail.mit.edu/video/history/aifilms/x05-graphics.mp4
 ** https://www.media.mit.edu/videos/144-lisp-logo-demonstration-henry-liberman/
-* [[SAIL]] Data Disc video:
+* [[Stanford Artificial Intelligence Laboratory|SAIL]] Data Disc video:
 ** https://archive.org/details/cst_000027
 [[Category: Device Basics‎‎]]