Inventions
Who invented the first telephone?
Alexander Graham Bell
What phrase did Bell say during the first telephone call?
"Mr. Watson, come here. I want to see you."
Who demonstrated the electronic television system in 1927?
Philo Taylor Farnsworth
What was Percy Spencer doing when he discovered microwaves?
Working next to a magnetron.
What major change did computers bring during World War II?
They solved complicated math problems faster.
What did Percy Spencer invent by accident?
The microwave oven
How did radio change communication?
It allowed broadcasts without wires.
Why was television important for events like the moon landing?
It allowed people to watch the event live.
What percentage of homes had a microwave by 1997?
90%
What size were the first computers?
The size of a large room
What year was the first telephone call made?
1876
What is a major effect of the Internet on communication?
It made communication faster, like sending emails instead of letters.
By what decade did almost every household in America have at least one TV?
The 1990s
What type of meals began to be made specifically for microwaves in the 1970s?
Frozen meals
When did personal home computers first become available?
Late 1970s
Who is known for creating the radio communication system?
Guglielmo Marconi
What is a major way people communicate today using smartphones?
Instant text messaging
What does television provide besides information?
Entertainment
What sensation did Spencer feel that led to the invention of the microwave?
An odd sensation as a candy bar melted in his pocket.
How many people worldwide are estimated to own computers today?
Two billion
What technology allows people to access the Internet on their phones?
Smartphones
What is social media?
A way of sharing text and photos in virtual communities.
What has made it possible to watch TV anytime on portable devices?
The Internet
How are microwaves helpful for busy families?
They allow quick meal preparation.
What does living in a digital age mean?
Many things are done by computer and information is easily available.