Final answer:
The author's tone towards computers in the given quote is excited.
Step-by-step explanation:
The author's tone towards computers in the given quote is
excited. The author mentions that by 2020, most home computers will have the computing power of a human brain, which indicates enthusiasm and anticipation about the advancement of technology. The author also mentions that machines could potentially become as smart as humans, further highlighting the excitement about future developments in computing. The hint about Big Brother next semester suggests anticipation and curiosity, reinforcing the positive tone.
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