What was the name of Hewlett-Packard's first successful product?

More Questions:

What is the Christmas Carol "O Christmas Tree" known as in German?

The use of astronomical phenomena to predict earthly and human events is called what?

Who was the valet that followed Phileas Fogg when he traveled around the world in 80 days?

In ancient Greece, what river did the souls of dead people have to cross?

What is non-rhyming poetry called?

Lilongwe is the capital of which African country?

What is the most common atom in the universe?

What culinary ingredient did Hippolyte Mège-Mouriès invent?

A tree which is deciduous does what?

What organ of the body is particularly affected by hepatitis?

Which fictional park is the home of Yogi Bear?

Who won part 1 of the final "Head Of Household" competition in season 14 of the TV show "Big Brother"?

What 1981 movie required some 7,000 snakes?

Whittaker Chambers hid Alger Hiss" purloined State Department documents in a hollowed-out what?

What popular Christmas song did Eartha Kitt record in 1953?