computer

Buzz or Hum in Computer Speakers

I recently spoke with an audio engineer (my Dad, who has worked in radio for many years) about something that's been bugging me for many years: Why do almost all computer speakers have some sort of annoying buzz or hum?

I know it has to do with voltage differences, power, RF emissions, etc... but I wanted to know more about what I could try to do to reduce the level of the noise. I've tried things like plugging everything into one outlet/power strip, using a filtered power adapter, using a ground loop reduction magnet, etc., with varying degrees of success.

Modern Office Computers

Found in the memory archive:

Modern office computer

...and we now get hundreds of 'electronic letters' a day. Ick. (From a Science Encyclopedia I devoured over and over as a kid).

My Computing History - All the Computers I've Owned

For quite some time, I've been thinking about posting an article with a broad overview of all the computers I've owned—Mac, PC, Linux, Handheld, etc. Well, I finally decided I'd start on that article. Here goes!

Condensed Summary

If the rest of this article is tl;dr, here's the short history:

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My First Computer (386 PC running MSDOS 6.0)

[Update: I have posted an article about all the computers I've owned].

Pictured below (in the final year of its existence) is the first computer I ever called my own. Built out of scrap parts my Dad brought home from his office, I managed to build the computer as a 33 Mhz 386, with 2 MB of RAM and a 20 MB hard drive, eventually upgrading it (in stages) to a 66 Mhz 486 with 8 MB of RAM and a 512 MB hard drive!

My First PC - 386 DOS Computer
mmm... SCSI in a PC!

How, you may ask, could a diehard Mac/Apple fanboy start on a 386? Well, it was all about budget, you see. Free is good, especially when you're a little kid with absolutely zero dollars in the bank.

This computer died shortly after this photo was taken, when I was unplugging a connector from the motherboard while the computer was still powered up. Something sparked, I got the largest jolt of my life, and the computer started smoking. Oh well, such is life.

The one thing I really miss about those early days of computing (and using PCs in general ;-) was the physicality and brutality of computing. I would spend about 1/8 of the time using the computer with the lid off, working in the guts. I would constantly upgrade parts inside to make it a lean, mean, computing machine. Heck, I could still draw diagrams of the three different motherboards that were housed inside the case pictured above, and make an accurate diagram of all the components I had installed at one time or another, and how they were connected together.

With the complexity of computers these days, and the miniaturization and virtualization of everything, tinkering is much more limited. But that's just nostalgia talking—I'm kind of glad I haven't shocked myself touching my iMac, iPad or iPhone yet.

Cleaning Your Desktop or Laptop Computer

This article will help you to properly clean your computer, monitor, keyboard, mouse, trackpad, etc., to keep them looking and working like new.

Keeping your computer clean can not only make it look great, but it can also help your computer to run great. I've seen many really dirty computers (both inside and out) that have problems simply because they are dirty; dust, grime and electricity don't mix well. It is also very hard to see what's on your screen if you have a layer of dirt or grime. And don't get me started on sticky keyboards and mice! Ick!

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