Control Pictures

Control Pictures is a Unicode block containing characters for graphically representing the C0 control codes, and other control characters. Its block name in Unicode 1.0 was Pictures for Control Codes.^[3]

Control Pictures
Range	U+2400..U+243F (64 code points)
Plane	BMP
Scripts	Common
Symbol sets	Control code graphics
Assigned	42 code points
Unused	22 reserved code points
Unicode version history
1.0.0 (1991)	37 (+37)
3.0 (1999)	39 (+2)
16.0 (2024)	42 (+3)
Unicode documentation
Code chart ∣ Web page
Note: [1][2]

Block

Control Pictures[1][2] Official Unicode Consortium code chart (PDF)

0

1

2

3

4

5

6

7

8

9

A

B

C

D

E

F

U+240x

␀

␁

␂

␃

␄

␅

␆

␇

␈

␉

␊

␋

␌

␍

␎

␏

U+241x

␐

␑

␒

␓

␔

␕

␖

␗

␘

␙

␚

␛

␜

␝

␞

␟

U+242x

␠

␡

␢

␣

␤

␥

␦

␧

␨

␩

U+243x

Notes 1.^ As of Unicode version 16.0 2.^ Grey areas indicate non-assigned code points

History

The following Unicode-related documents record the purpose and process of defining specific characters in the Control Pictures block:

Version	Final code points[a]	Count	L2 ID	WG2 ID	Document
1.0.0	U+2400..2424	37			(to be determined)
3.0	U+2425	1		N1138	LaBonté, Alain (1995-01-30), Proposal to add new characters (Keyboard related) to 10646
				N1203	Umamaheswaran, V. S.; Ksar, Mike (1995-05-03), "6.1.6", Unconfirmed minutes of SC2/WG2 Meeting 27, Geneva
				N1303 (html, doc)	Umamaheswaran, V. S.; Ksar, Mike (1996-01-26), Minutes of Meeting 29, Tokyo
			L2/97-128	N1564	Paterson, Bruce (1997-05-15), Draft pDAM for various additional characters (the "holding bucket")
			L2/97-288	N1603	Umamaheswaran, V. S. (1997-10-24), "7.3", Unconfirmed Meeting Minutes, WG 2 Meeting # 33, Heraklion, Crete, Greece, 20 June – 4 July 1997
			L2/98-005R	N1682	Text of ISO 10646 - AMD 22 for PDAM registration and PDAM ballot, 1997-12-17
			L2/98-320	N1898	ISO/IEC 10646-1/FPDAM 22, AMENDMENT 22: Keyboard Symbols, 1998-10-22
				N1897	Paterson, Bruce; Everson, Michael (1998-10-22), Disposition of Comments - FPDAM22 - Keyboard Symbols - SC2 N3191
			L2/99-010	N1903 (pdf, html, doc)	Umamaheswaran, V. S. (1998-12-30), Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25
			L2/99-126		Paterson, Bruce (1999-04-14), Text for FDAM ballot ISO/IEC 10646 FDAM #22 - Keyboard symbols
	U+2426	1		N1045	Defect Report on 10646 Repoertoire (Add ISO 2047symbols), 1994-08-01
				N1203	Umamaheswaran, V. S.; Ksar, Mike (1995-05-03), "6.1.3.2", Unconfirmed minutes of SC2/WG2 Meeting 27, Geneva
			L2/98-004R	N1681	Text of ISO 10646 – AMD 18 for PDAM registration and FPDAM ballot, 1997-12-22
				N1875	Defect Report on REVERSED QUESTION MARK in FPDAM 18, 1998-09-22
			L2/98-318	N1894	Revised text of 10646-1/FPDAM 18, AMENDMENT 18: Symbols and Others, 1998-10-22
			L2/99-010	N1903 (pdf, html, doc)	Umamaheswaran, V. S. (1998-12-30), "6.7.3", Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25
16.0	U+2427..2429	3	L2/21-235 (full, no_attach, sources, mappings_zip)		Bettencourt, Rebecca; Ewell, Doug; Bánffy, Ricardo; Everson, Michael; Hietaniemi, Jarkko; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark; Steele, Shawn; Turner, Rebecca (2021-12-20), Proposal to add further characters from legacy computers and teletext to the UCS
			L2/22-023		Anderson, Deborah; Whistler, Ken; Pournader, Roozbeh; Constable, Peter (2022-01-22), "17 Legacy Computing Symbols", Recommendations to UTC #170 January 2022 on Script Proposals
			L2/21-235R (full, no_attach)		Bettencourt, Rebecca; Ewell, Doug; Bánffy, Ricardo; Everson, Michael; Hietaniemi, Jarkko; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark; Steele, Shawn; Turner, Rebecca (2022-01-26), Proposal to add further characters from legacy computers and teletext to the UCS
			L2/22-016		Constable, Peter (2022-04-21), "D.1 17 Legacy Computing Symbols", UTC #170 Minutes
Proposed code points and characters names may differ from final code points and names

See also

• ISO 2047