<p>An introduction to computer maintenance and repair includes advice on file maintenance, disk problems, protecting against viruses, backing up data, cleaning a hard drive, and restarting after a crash.</p>

Essential Computers Series: Computer Troubleshooting

Johnson, Neal

Easton, Andrew

Reference

DK Pub.

<p>The most up to date wiring guide on the market!</p>

Wiring Guide 2020: The Complete Indoor And Outdoor Wiring Guide Including Smart Home Wiring In 2020

Computers & Technology

Computer Science

Seattle Publishing Company

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Books by Johnson, Neal