Why are some books so expensive on Amazon?

Why are some books so expensive on Amazon?

Books are expensive, but some books are crazy expensive. There are generally three reasons for that. I don’t think I’m giving away any deep, dark secrets, so I’ll explain why some books are so expensive on Amazon. Like, $800 expensive, sometimes. Better yet, I’ll also explain how to know if the book you’re looking at is overpriced, or if it typically does sell for those high prices.

Some books legitimately are extremely valuable and expensive. But sometimes low-demand books get caught up in price wars that drive prices up due to short supply.

Read more

What to look for in a surge protector

What to look for in a surge protector

Surge protectors cost a lot less now than they did when I was a kid. That’s probably a good thing. But buying one today is no less confusing than it was in 1985. Here’s what to look for in a surge protector, so you’re getting the protection you think you are, and without sacrificing convenience.

A good surge protector offers an indicator light that tells you it’s working, enough plugs to be useful to you, and at least 1,000 joules of protection. Be sure to look for at least those three things.

Read more

Asymmetric attack examples

Asymmetric attack examples

In security, we talk about asymmetric attacks all the time. If you don’t know what that means, here’s an easy definition and some examples from the real world. We have to be careful not to conduct asymmetric attacks on ourselves, because frequently we inadvertently do just that.

An asymmetric attack is an attack that’s substantially more expensive to protect against than to launch. This makes them a common challenge in security.

Read more

Can’t type in PyCharm? Try this first.

Can’t type in PyCharm? Try this first.

PyCharm is a lifesaver for developing in Python, but it has a glitch. Sometimes, after you run a script, you lose the ability to type in the editor and make changes. Loads of web sites offer elaborate suggestions to fix the problem, but frequently, these complex solutions don’t work. Frequently they cause other problems. Try the easy solutions first.

The two easy solutions are to double-click on another file in your project, then double click on your script again. And if that doesn’t work, just exit PyCharm entirely and relaunch it.

Read more

Surge protector vs power strip

Surge protector vs power strip

My home office doubles as the home for most of my retro computers. That means at any given time I have up to five computers set up in there. These means I need lots of power strips. Or is it surge protectors I need? Let’s look at the question of surge protector vs power strip, because there really is a difference. And that difference can cost you money. Sometimes a lot of money.

A power strip just extends your outlet so you can plug more stuff into it. A surge protector lets you plug in more stuff, but it also provides protection for what you plug into it, though the amount of protection varies.

Read more

Are tenkeyless keyboards good?

Are tenkeyless keyboards good?

I’ll admit it. I’m a keyboard snob. There are two reasons for that. My mind races much faster than most people can type, and on a good keyboard I could type at insane speeds in my prime. Secondly, I’ve had repetitive stress injury, and after a day of typing on cheap keyboards, I can feel it. I’m an extreme case, but if you’re asking about a specific kind of keyboard, that’s probably the opinion you want. So are tenkeyless keyboards good? I thought I’d hate them, but I was wrong.

Tenkeyless keyboards offer at least three advantages over a traditional keyboard. They’re cheaper, they take up less space, and they allow a better position for the mouse. If you’re not an accountant, they’re worth a look.

Read more

Composite vs S-Video

Composite vs S-Video

Vintage computers and video game systems, as well as other consumer devices, often offer more than one video output option. Composite and S-Video are two of the most common options. Let’s look at composite vs S-Video, and why one is better than the other.

S-Video separates the video signal into two components, the chrominance (color) and luminance (brightness), where composite transfers them both on a single wire. Separating the two gives a clearer picture, though the difference depends on how the circuit is implemented.

Read more

WordPress Appliance - Powered by TurnKey Linux