Exercise 4. Choose the proper answer to the question according to the text.

 

How many Pong games were there in American homes by 1975?

 

a) 150,000

b) 1,500

c) 15,000

 

Text C:HOWARD AIKEN (1900 – 1973)

He built the Mark I, the first working dig-ital computer. A brilliant inventor, he was not a good fortune-teller. Said Aiken in l947: "There will never be enough problems, enough work for more than one or two of these computers