5.25 floppy drive maintenance

5.25 floppy drive maintenance

It’s been a long time since 5.25-inch floppy drives were mainstream. But a lot of them can still work today with a little bit of cleaning and lubrication. Here’s a quick guide to 5.25 floppy drive maintenance.

Cleaning the heads, then cleaning and lubricating the rails is usually all it takes to get a 5.25-inch drive working well. Using the right cleaner and lubricating sparingly is the key to doing more good than harm.

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Building a computer in the 90s

Building a computer in the 90s

Building a computer in the 90s was different than it is today. It wasn’t just harder or more expensive. It seemed like every new build was an adventure. I probably built a few hundred systems before the decade ended, but the first few were definitely the most memorable. One in particular stands out above the rest.

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Advantages and disadvantages of floppy disks

Advantages and disadvantages of floppy disks

You may think of floppy disks as an obsolete technology. But they were very important in the 1980s and 1990s, and they aren’t completely gone today. Here are the advantages and disadvantages of floppy disks, and why they just won’t quite go away.

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What is MS-DOS?

What is MS-DOS?

What is MS-DOS? I guess the question dates itself, or rather, the person who asked it. DOS is obsolete today, but was so important in the 80s and 90s that people assume you know what it was.

MS-DOS was the operating system PCs used before Windows. It was the first popular 16-bit operating system, and was the dominant operating system of the 1980s and early 1990s. It did not multitask.

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First 486 computer: The Apricot VX FT

First 486 computer: The Apricot VX FT

It’s fairly common knowledge that Compaq made the first 386-based computer, but what about the 486? What was the first 486 computer? When did the first 486 computer come out? And why have you never heard of it?

The first 486 computer was the Apricot VX FT, a line of servers announced in June 1989, with general availability later that year. They were expensive and they were only marketed as servers, so that’s why they aren’t as well known as the Compaq Deskpro 386.

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VGA connector doesn’t fit? Here’s why.

VGA connector doesn’t fit? Here’s why.

I dusted off my 486 the other weekend because I had some 90s nostalgia. And just like the 90s, I immediately ran into some trouble. The VGA connector didn’t fit on the 15-inch 4:3 LCD monitor I wanted to use. If your VGA connector doesn’t fit, you probably have the same problem I had.

VGA connectors used to leave out pin 9 as a key pin, to keep you from plugging the wrong kind of cable into the connector and damaging the connector. Modern VGA cables use pin 9, so if your cable doesn’t fit, check to see if the port has 14 pins or 15. A 14-pin VGA cable is almost a must-have if you travel and give presentations a lot, or are into retro computers.

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IBM PC vs XT

IBM PC vs XT

The difference between an original IBM PC and a PC/XT seems subtle today. The XT wasn’t a huge upgrade over the PC, but the improvements were enough to be significant. The changes IBM made greatly extended the lifespan of the XT, and that’s one reason XTs are so much more common than PCs today. Let’s take a look at the IBM PC vs XT.

The PC/XT had the same CPU running at the same speed and couldn’t take any additional memory over the PC. But the XT was more expandable, and in the late 1980s, that was everything.

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Using a CD-ROM drive in MS-DOS

Using a CD-ROM drive in MS-DOS

Loading a CD-ROM device driver in DOS is a bit of a lost art and it wasn’t that easy to find information on how to do it in the 90s either. If you want to use a CD-ROM drive in MS-DOS, here’s how to find, load and configure the driver.

Using a CD-ROM drive in MS-DOS requires loading a CD-ROM driver in config.sys as well as loading MSCDEX.EXE in autoexec.bat. If you match the /D switch on both, the drive will work, but there are tricks to getting optimal performance and memory usage.

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BIOS hard drive limits

BIOS hard drive limits

Back in the old days, we had to worry about BIOS hard drive limits. I couldn’t put a 40 GB hard drive in my 486 because it couldn’t recognize a drive of that size. That wasn’t a big problem in the 90s since I couldn’t get one of those in the 90s, but now that we’re starting to dust off those old systems and put modern storage solutions in them, sometimes we have to think about those limits again.

Generally speaking, older systems tend to be limited to hard drive sizes of 528 MB, 2.1 GB, 4.2 GB, 8.4 GB, 33.8 GB, or 137 GB. Sometimes you can configure the system to ignore the extra size, or you can use another workaround.

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What does a Sound Blaster do?

What does a Sound Blaster do?

There was a time when the Sound Blaster, and its manufacturer, Creative Labs, were household names. Today the product is a bit marginalized, even though it’s historically very significant. What does a Sound Blaster do, and should you care?

A Sound Blaster provides audio capability for a PC, usually slightly better than what comes built into modern PCs. Before sound came standard, Sound Blaster was the most popular and best supported type of sound card.

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