Answer: 1) What two countries were already involved in a military conflict before the beginning of World War II? 2) What was the longest battle of World War II? 3) What was the first Nazi concentration camp? 4) In which battle did the Axis powers lose about a quarter of their total troops on the Eastern Front?
The key invention that led to computers becoming smaller and more common in American households in the 1980s was the keyboard.
<h3>What is an Invention?</h3>
This refers to the creation of a thing that has not been in use before to make life easier and faster or to improve on something already available.
Hence, we can see that with the invention of the keyboard, there was the reduction in computer size in American households in the 1980s as the keyboard was a separate entity.
Read more about inventions here:
brainly.com/question/17931211
I can give 1 but indetured servants is an optional thing people were payed but very little to do it
