Over the years, Marx made electric and clockwork trains in no fewer than seven sizes and two gauges. Depending on how you count Marx train sizes, you can say it was more than that. Here’s an overview of what they made.
Now that Windows 10 is out, the questions I see most frequently are why someone should upgrade, or what benefits they get if they upgrade, or if there indeed is such thing as advantages to Windows 10.
While I understand the skepticism, and I think most people probably should wait a few months before upgrading a Windows 7 machine that’s working well, there are a number of compelling things Windows 10 has to offer.
Later this week, Philips will be releasing a new, cheap LED bulb at an introductory rate of $5 for a pack of two. They are 800 lumen bulbs, equivalent to a 60w incandescent in light output, use 8.5 watts to give off an impressive 94 lumens per watt, and have a color temperature of 2700K that’s comparable to a soft white incandescent.
Sound good? It ought to, but there’s a catch. Often there is.
I can’t believe I’ve never written about the Backblaze hard drive longevity study, but apparently I haven’t. At work we’re running up against the limitations of hard drives, so it’s good to know this kind of stuff.
Here’s what you need to know: Hard drives fail very early or very late. If a drive lasts more than a few days–which is why burning in new equipment is important–only 5% of them fail in their first 18 months. Then, for the next 18 months, only 1.5% fail. Golden years! At age 3, though, failure rates jump to 11.8% and stay there. So keeping hard drives much longer than 4 years is generally asking for trouble. 78% of drives live to age 4, but at that age the annual failure rate is very high.
This is Backblaze’s experience under specific and somewhat peculiar conditions, but it’s not far off at all from what I’ve observed.
Keep in mind this is the average. Every maker has made incredibly bad drives, and all of them who are left have made drives better than the average too. I don’t know why they go on hot and cold streaks, but they do, and they always have. That’s why some people think any given brand of drives are the best and others think the same brand are junk. With a little luck, you can buy one brand of drive and have all of them be spectacular, or with a little bad luck, buy different models of the same brand and have them all fail a day after the warranty expires. Continue reading Hard drive longevity and you (or your business)
I’ve been hearing a lot of complaints about CFL bulbs lately. I’ve written about how to address premature CFL burnout before, but I guess it bears repeating. It’s a five-minute fix, usually, to get the bulbs to last a while. So here’s what to do if your CFL bulbs burn out too quickly. Continue reading What to do if your CFL bulbs burn out too quickly
If you’re asking how long does a hard drive last, I found this study on hard drive longevity last week.
I take issue with the opening paragraph but the rest of the article is very good. The opening paragraph is a bit deceptive—hard drives were anything but common 30 years ago. Even 25 years ago, they were a serious status symbol. I remember in 1988, a classmate told me his dad had just bought a computer with a hard drive, and swore me to secrecy. Why? Because in today’s dollars, a computer with a hard drive in 1988 cost around $2,000, minimum, and given that his dad was working towards his master’s degree at the time, he probably had a really hard time affording that. If you had a hard drive even in the late 1980s, you were either very rich, or you took your computing very seriously and were willing to make some serious sacrifices somewhere else.
But, like I said, the rest of the article is very good. I’m being a curmudgeon. Continue reading How long does a hard drive last?
I’ve been working on a Compaq Presario SR2011WM. It’s a basic, low-end, single-core Celeron D system from 2006 or so. It can take up to 2 GB of RAM, runs Windows XP adequately, and has SATA ports, so you can put an SSD in it if you want. But don’t be fooled by the name–the Celeron in this machine is single core, and has a Prescott-era Pentium 4 core in it at that, not a low-TDP, Pentium D-style core.
In case you’re wondering, the easiest way to get it to boot from USB is to plug in a USB drive, hit ESC as the system runs POST, then select your USB drive from the menu.
Now let’s talk about options for upgrades. Continue reading Notes on the Compaq Presario SR2011WM
I found this chart earlier this week regarding SSD write endurance. Basically, it plots out how long an SSD would last if you set out to deliberately destroy it by writing to it continuously.
You could expect a mainstream 128-GB drive to last 4.7 years under those conditions, which is longer than a platter hard drive would last if subjected to the same kind of abuse.