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PENCIL
The pencil was invented by Nicolas-Jacques Conté. But it wasn't mass produced until the 1900s. -
CHALKBOARD
James Pillans invented the cjalkboard. He was a headmaster at a school in Edinburgh, Scotland and created the blackboard to assist him in geography class. -
OVERHEAD PROJECTOR
Roger Appeldorn originally created this tool to help brief soldiers during World War II. His invention was a success in teaching students in America and abroad. -
HANDHELD CALCULATOR
Texas Instruments produced the first large handheld calculator. It computer minor mathematical equations and weighed about 45 ounces. -
THE OSBORNE 1 LAPTOP
dam Osborne and Lee Felsenstein took the desktop computer and created a new technology that made computers portable. This device replaced the outdated word processors. -
WORLD WIDE WEB
Tim Berners-Lee is accredited with designing the first version of what is now known as the Internet. It was intended as a resource to connect academics and researchers.