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hannahgold hannahgold
wrote...
Posts: 474
Rep: 0 0
6 years ago
Which invention replaced vacuum tubes in computers?
 
  a. the integrated circuit
  b. the transistor
  c. the microprocessor chip
  d. magnetic tape

- - -

Cognitive surplus means that we now find many people with
 
  a. more money than free time.
  b. limited access to the Internet.
  c. excess time and free tools for collaboration.
  d. mobile devices.
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wrote...
6 years ago
B

- - -

C
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