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Hal Abelson

Turtle Geometry, 1969

5302 Lines of 6502 Assembly Language on acid-free dot-matrix computer paper
11 × 9 1/2 × 2 in
27.9 × 24.1 × 5.1 cm
Bidding closed
About the work
Articles

Last year, when Barack Obama became the first U.S. president to write a line of computer code, this …

Read more

Last year, when Barack Obama became the first U.S. president to write a line of computer code, this was the algorithm. He typed a command in the '60s-era teaching language Logo, whose signal application was derived through “turtle graphics”—a system by which students could drive a robot.

Algorithm Auction
New York

On December 9, 2014, as part of Computer Science Education Week, President Obama visited a middle …

Read more

On December 9, 2014, as part of Computer Science Education Week, President Obama visited a middle school in New Jersey and wrote this line of code: moveForward(100);.

In doing so, the president was not only acknowledging the essential place of computer science in American schools, but he was also paying homage to the …

Read more
Hal Abelson
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In the world of computing, Hal Abelson is a legend: a much-honored educator and an activist for internet freedom. A professor in the electrical engineering and computer science department at MIT, Abelson is a co-author, with Gerald Sussman, of the classic course and textbook Structure and Interpretation of Computer Programs, which advances an analytical approach to programming language that has influenced computer science education worldwide. On a philosophical and political plane, Abelson has been a founder and director of such public interest groups as Creative Commons, the Center for Democracy & Technology, and the Free Software Foundation—organizations that work variously to promote progressive ideals such as the open dissemination of information on the internet, the personal privacy of Web users, and freedom of expression.

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Save
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share
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About the work
Articles

Last year, when Barack Obama became the first U.S. president to write a line of computer code, this …

Read more

Last year, when Barack Obama became the first U.S. president to write a line of computer code, this was the algorithm. He typed a command in the '60s-era teaching language Logo, whose signal application was derived through “turtle graphics”—a system by which students could drive a robot.

Algorithm Auction
New York

On December 9, 2014, as part of Computer Science Education Week, President Obama visited a middle …

Read more

On December 9, 2014, as part of Computer Science Education Week, President Obama visited a middle school in New Jersey and wrote this line of code: moveForward(100);.

In doing so, the president was not only acknowledging the essential place of computer science in American schools, but he was also paying homage to the …

Read more
Hal Abelson
Follow

In the world of computing, Hal Abelson is a legend: a much-honored educator and an activist for internet freedom. A professor in the electrical engineering and computer science department at MIT, Abelson is a co-author, with Gerald Sussman, of the classic course and textbook Structure and Interpretation of Computer Programs, which advances an analytical approach to programming language that has influenced computer science education worldwide. On a philosophical and political plane, Abelson has been a founder and director of such public interest groups as Creative Commons, the Center for Democracy & Technology, and the Free Software Foundation—organizations that work variously to promote progressive ideals such as the open dissemination of information on the internet, the personal privacy of Web users, and freedom of expression.

Hal Abelson

Turtle Geometry, 1969

5302 Lines of 6502 Assembly Language on acid-free dot-matrix computer paper
11 × 9 1/2 × 2 in
27.9 × 24.1 × 5.1 cm
Bidding closed