DEC Rainbow 100

DEC Rainbow 100

The DEC Rainbow 100 was an early MS-DOS computer that wasn’t 100% IBM compatible. In retrospect, this seems like an obvious mistake. But they took a different strategy, betting that they could win by providing a degree of compatibility, but that the market would choose their solution if they provided some amount of technical superiority. In this blog post, I’ll explore what DEC tried, and why it ultimately failed.

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Ryobi PBP002 battery review

Ryobi PBP002 battery review

Ryobi’s 1.5 Ah batteries have never had the best reputation. But all of my experience was with earlier model. I bought into the Ryobi tool line around 2009 and I’ve accumulated a few batteries and chargers over the years. So I usually just buy the tool alone and use the better, heavier duty batteries. But last year I purchased a tool bundle that included a pair of the new PBP002 1.5 Ah batteries. Is the Ryobi PBP002 battery any good? Read this review to find out.

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The best type-in I ever typed in: Crossroads, by Steve Harter

The best type-in I ever typed in: Crossroads, by Steve Harter

A question has been going around on social media about the best type-in you ever typed in. I remember it like it was yesterday. Crossroads, from the December 1987 issue of Compute!’s Gazette. Second place wasn’t close. Crossroads was an arcade-style game for the Commodore 64 that I think of as a sort of top-down 2-dimensional Doom-like game.

Yes, I am aware there was a sequel, Crossroads II, published a year later. I didn’t type that one in. I bought the disk. So while Crossroads II was better, I can’t call it the best type-in I ever typed in myself.

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Commodore 8250 disk drive

Commodore 8250 disk drive

The Commodore 8250 disk drive was the highest capacity floppy drive Commodore made for its 8-bit computers. It was a dual drive unit the connected to the IEEE-488 bus used on the PET and CBM line of computers. Each drive stored one megabyte of data on 5.25 inch double sided quad density disks. When you listed the directory on a Commodore equipped with an 8250, the disk read 4133 blocks free.

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