How To Replace Your PC

If you know a non-technical person who needs some straight-forward advice about getting a new computer or tablet, send them to .

The site’s recommendations are primarily intended to help home users avoid malware and security problems. There’s a good chance that one reason the old computer is being replaced is that it is infested with malware.

The site is run by Neil Hutton, whose day job is cleaning viruses off user’s machines. With this experience he unsurprisingly gives high marks for security to iOS and Macintosh, and Windows is in the “just put a target on your back” category.

No tech jargon here. This is a site you can send your mom to. Enjoy.

How to Turn On an iMac

Otherwise knowledgeable users are baffled by one silly question when confronted with an iMac: How do I turn the computer on? Where’s the power switch? It’s not a stupid question. Apple has hidden the power button cleverly where you can’t possibly see it. It’s also very difficult to feel the button because it is flush with the case. If you do look back there, it’s probably hidden behind the curve of the case.

Anyway, here it is on a Mid 2011 iMac. It’s been in a similar position for several years. Glad to help, and don’t worry, we won’t tell anyone you had to look here to find out to turn on a Macintosh.

Behind lower left edge of computer.
Behind lower left edge of computer.

Combining MPEG Movies

I was looking for a straight-forward way to concatenate separate MP4 (MPEG 4) movies into a single movie. I am novice at all things video. I have at my disposal just some basic tools: iMovie, QuickTime Player, QuickTime Player 7 and MPEG Streamclip.

iMovie seemed like overkill. I couldn’t find any hint of a “concatenate” or “append” menu item in QuickTime Player or MPEG Streamclip.

Totally by accident, I found the trick in MPEG Streamclip. If you open multiple files at once, by command-clicking or shift-clicking them in the open dialog, MPEG Streamclip treats the group as one big video — instantly concatenating them together. It does not open multiple windows, but opens them all together in a single window as though they were a single continuous file.

Hopefully, you have named them in such a way that the sort order represents the order you want them to appear in the final video. Now, all you have to do is export that combined video into whatever format  you want. It will take a while, but you didn’t have to fool around with trying to cut and paste video segments, which wasn’t working for me at all, anyway.