Author: Dave Farquhar

How to check your downloaded files’ integrity

Dave Farquhar security, Windows
How to check your downloaded files’ integrity

On some web pages offering programs to download, you may have seen something called an MD5 near the program link, consisting of a long, weird code like 6cbfd919baa7c9e03c8471ae4d8f8bb.

You can use that code to make sure the file you downloaded is what the author intended you to get and wasn’t corrupted during the download process or, worse yet, booby-trapped by someone else. Here’s how.

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The IE6 mess is Microsoft’s own doing

Dave Farquhar Windows

Microsoft is begging people to get rid of IE6. I saw this week that they’ve managed to get its market share down to 12 percent, but that’s still a long way from their goal of 1 percent.

I’m surprised they’ve managed to get it that low. And I don’t feel sorry for them. Not in the least.
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How to clean inside Lionel tubular track

Dave Farquhar Toy trains , , , ,

If the outside of your Lionel track is rusty or dirty, there’s a chance the inside is too. Here’s how to clean inside Lionel track.

The condition of the inside of the track is the standard reason people give for discarding old Lionel track rather than trying to fix it. But if you’re willing to put in some effort, this problem, too, is fixable.

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How CPU multipliers came to be locked

Dave Farquhar Retro Computing , , , , , , , , ,

It was 1996. I was a senior in college, and I went to the computer store in the student commons to get a cable or something. I ran into an old classmate working in the store, who went on to work as an engineer for Boeing. We talked for a few minutes, and he told me about a web site that I just had to visit. I still remember the URL for some reason. He grabbed a piece of paper and scrawled “http://sysdoc.pair.com” on it.

It was my introduction to the world of PC hardware enthusiast sites. That mysterious URL was the early address of Tom’s Hardware Guide. The front page mostly consisted of links to articles telling you how to overclock Pentium CPUs using undocumented jumper settings on Asus motherboards, and the ads were largely mail-order houses offering specials on Asus motherboards and low-end Pentium CPUs.
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SSDs and pricing

Dave Farquhar Hardware , , , ,

Mainstream SSDs cost around $2 per GB to buy right now. I was curious, so I decided to try to relate historical SSD pricing to the historical pricing of conventional hard drives.

It didn’t take long for me to find a correlation.
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On 99-cent e-books

Dave Farquhar Journalism ,

Slashdot has the story of independent writer John Locke, who writes crime novels and sells them as e-books on Amazon for 99 cents. He’s sold 350,000 copies since January, which was a 20x improvement over his sales rates when he was selling them for $2.99.

Publishers hate the idea. There’s not enough perceived value in a 99-cent book. Looking at it from an author’s perspective, I don’t think it’s necessarily bad.
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Snow. Extreme snow.

Dave Farquhar Personal

Snow being in the forecast tonight reminds me of a couple of stories.
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They still make hard drives?

Dave Farquhar Hardware , ,

I try not to pay much attention to hard drives these days, but sometimes I just can’t help myself. And two things have happened this week on that front.
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Intel and the SSD, 2011

Dave Farquhar Hardware , , ,

I saw and heard a couple of interesting bits about Intel and SSDs today.
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Using s-video gear with Commodore monitors

Dave Farquhar Retro Computing , , , , , , , , , , ,

Commodore and Atari used an early implementation of s-video on their home computers in order to show off their computers’ advanced-for-their-time graphics. Many monitors sold for those computers featured compatibility with this feature, which was called “separated” or “y/c” composite or at the time. JVC called the feature “s-video” when they started using it on their SVHS camcorders starting in 1987, and JVC’s name stuck. Other companies followed suit, and s-video and the mini DIN plug became an industry standard.

Commodore and Atari used a different connector than JVC did, but all it takes to use s-video gear with those old monitors is a cable, which you can make with about $10 worth of parts from Radio Shack. Read more