Are PCs doomed?

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Greetings, Leo! I’m retired and depend on my PC for communication, personal business, writing, maintaining a modest website, research, education, and entertainment. These days, I constantly read about the end of the PC era. What’s your opinion of the future of PCs, especially for home users? Please advise.

In my opinion, the death of the PC has been grossly exaggerated. They are not doomed. They are not going away anytime soon.  I have several different reasons I say that.

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Can my PC get a virus from my smartphone?

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I wondered if a smartphone is infected with a virus. Is there a chance that the system (a PC or a laptop) could also get infected if a Windows-based malware/virus is present on the smartphone? Secondly, if a USB port is disabled in the system (PC or laptop), can there still be a virus attack on the system?

There are two questions here. Let me address the first one.

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