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a printing press which is now called a printer
Charles Babbage did not invent the computer printer. He is most famous for inventing the "Babbage Difference engine" which was a mechanically operated calculator. Babbage started his work on the difference engine in 1822 and continued to improve on his ideas throughout his life eventually developing several computational machines. Babbage is also the inventor of the cow-catcher and the opthalmoscope.
No. Printing presses have been around for centuries. The biggest improvement in them came when Johannes Gutenberg (who lived 1400 - 1468, 236 years before Benjamin Franklin was born) was the first European to develop printing with movable type.
No. Ben Franklin did not invent water skies, but he did invent swim fins.