Touchscreen — Questions and answers
Read the full story
What big problem did E.A. Johnson want to solve with his new invention in 1965?
Choices
- How to make computers use only light pens.
- How to make human-computer interaction easy and quick. ✓
- How to make air traffic control use more paper strips.
- How to add more complex dials and switches to computers.
Answer: How to make human-computer interaction easy and quick.
From page 1
How did E.A. Johnson's touchscreen detect a finger touching it?
Choices
- It used a tiny camera to see the finger.
- The finger, being conductive, made a small electrical change when it touched the screen's field. ✓
- It had little buttons all over the screen that the finger pressed.
- It used water to make a connection.
Answer: The finger, being conductive, made a small electrical change when it touched the screen's field.
From page 4
What important job was E.A. Johnson's first working touchscreen used for?
Choices
- Playing video games.
- Controlling air traffic. ✓
- Drawing pictures with light pens.
- Typing long messages on a keyboard.
Answer: Controlling air traffic.
From page 6
Where was Johnson's touchscreen first used and what did people think of it?
Choices
- In regular homes, and people thought it was too complicated.
- In specialized places like air traffic control, and controllers loved it. ✓
- In schools, and students found it too slow.
- In toy stores, but kids preferred traditional toys.
Answer: In specialized places like air traffic control, and controllers loved it.
From page 7
What kind of touchscreen was invented in the 1970s by Dr. Samuel Hurst, and what was special about it?
Choices
- A capacitive touchscreen that needed a bare finger.
- A resistive touchscreen that used pressure and could work with gloves or styluses. ✓
- A light pen screen that required very bright lights.
- A keyboard screen that had a tiny keyboard on it.
Answer: A resistive touchscreen that used pressure and could work with gloves or styluses.
From page 8