Delta Drawing

{{Infobox software

| name = Delta Drawing Learning Program

| title = Delta Drawing Learning Program

| logo =

| screenshot =

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| author =

| developer = Computer Access Corporation
Power Industries LP

| released = {{Start date and age|1983|df=yes/no}}

| discontinued =

| latest release version = 4.3

| latest release date = {{Start date and age|1993|df=yes/no}}

| programming language =

| platform = Apple II, Atari 8-bit, Commodore 64, VIC-20, MS-DOS

| size =

| language = English, Spanish

| genre = Turtle graphics

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}}

Delta Drawing Learning Program, later retitled Delta Drawing Today, is a turtle graphics drawing program developed by Computer Access Corporation,{{cite journal |author=Staff writer |year=1983 |title=Drawing Program for Children |journal=Compute! |issue=34 |page=251 |url=http://www.atarimagazines.com/compute/issue34/134_4_NEWS_PRODUCTS_DRAWING_PROGRAM_FOR_CHILDREN.php |access-date=4 October 2011 |author-link=Staff writer }} and published by Spinnaker Software in 1983.

Delta Drawing was intended for children age 4 to 14. It features a functional programming language for executing scripted drawing and painting instructions.{{cite journal |last1=D'lgnazio |first1=Fred |year=1983 |title=Turning Logo Upside Down |journal=Compute! |issue=37 |page=152 |url=http://www.atarimagazines.com/compute/issue37/logo_upside_down.php |access-date=4 October 2011 }} Spinnaker sought to improve on the educational value of Logo, an earlier educational programming language that could also program turtle graphics.{{cite journal |last1=King |first1=Charles |year=1983 |title=Software Review: Welcome to the World of Delta Drawing. |journal=Hands On! |volume=6 |issue=2 |pages=15–16 }}

Power Industries LP of Newton, Massachusetts later acquired Delta Drawing Learning Program and continued its development. They released the new version, Delta Drawing Today v4.0, in 1990,{{cite journal |year=1990 |journal=THE Journal |volume=18 |issue=1 |page=48 |publisher=Information Synergy, Inc. }} and eventually a Spanish-language edition: Delta Drawing Today Version Español.