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Science and Engineering » Codes and Symbols

What was the first major use for punched cards?

Learn the first major use for punched cards and when they were used.
The first major use for punched cards was developed by Joseph Jacquard. Find out more about the first major use for punched cards.

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The computer language COBOL was invented in the 1960s. [© Shutterstock, 2010]

Science and Engineering » Codes and Symbols

Who invented the COBOL computer language?

Find out who invented the COBOL computer language.

C and C++ have largely replaced assembly language. [©Jupiter Images, 2010]

Science and Engineering » Codes and Symbols

Is an assembly language the same thing as a machine language?

Find out if an assembly language is the same as a machine language.

Lines in a UPC  communicate  product information. [©Jupiter Images, 2009]

Science and Engineering » Codes and Symbols

What do the lines in a Universal Product Code mean?

We see UPC Bar codes on everyday products, but how do they work?

Braille was invented by Louis Braille in the early 1800s [©Jupiter Images, 2009]

Science and Engineering » Codes and Symbols

Who invented the Braille alphabet?

Learn more about the inventor of Braille, Lois Braille.

Morse Code paddle invented by F.B. Morse. [©Jupiter Images, 2009]

Science and Engineering » Codes and Symbols

What is the Morse Code?

Learn about Morse Code as an early form of long-distance communication.

International phonetic alphabet information can be found the dictionary. [©Jupiter Images, 2009.]

Science and Engineering » Codes and Symbols

What is the international phonetic alphabet?

Learn about the international phonetic alphabet.

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