9781422277324

S trange as it may sound, the origins of Twitter can be traced back to a young teenager listening to a police scanner. That young teenager was Jack Dorsey (left), who would become one of the co-creators of Twitter as well as other groundbreaking technological advancements. Growing up in St. Louis, Missouri, Dorsey was the son of an engineer. His father’s job gave Dorsey access to computers before most of the other kids his age. He first began playing with com- puters at the age of eight. That was in 1984, and most adults didn’t even have computers back then. But merely using computers was not enough for Dorsey; he wanted to understand how they worked. He taught himself how to build computer pro- grams at a time when his fellow students didn’t even know how to use a com- puter. All this took place before he was even a teenager. Dorsey’s other passion was trains, and it went hand-in-hand with his in- terest in technology. He decorated his room with posters of maps and trains,

WORDS TO UNDERSTAND functionality the ability of a product to be successfully used urban planner a person who puts together designs and plans for cities, including buildings, open space, utilities, and transportation

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