Retro MS-DOS Palmtop Resurrected With Raspberry Pi Zero

We miss the palmtop laptop, one of many many types of sub-laptop rudely swallowed up by the rise to dominance of the smartphone and pill. Hooray, then, for Canadian hacker Rune Kyndal, who has crammed a full Linux laptop (a Raspberry Pi Zero W) and colour display screen into the shell of an HP-95LX PDA (Private Digital Assistant). He’s known as it the HPI95LX, clearly, and Hackaday reported on it

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Rune Kyndal's HPI95LX project

(Picture credit score: Rune Kyndal)
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Rune Kyndal's HPI95LX project

(Picture credit score: Rune Kyndal)
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Rune Kyndal's HPI95LX project

(Picture credit score: Rune Kyndal)
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Rune Kyndal's HPI95LX project

(Picture credit score: Rune Kyndal)
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Rune Kyndal's HPI95LX project

(Picture credit score: Rune Kyndal)

The 95LX, you’ll little doubt bear in mind, was HP’s first try at a palmtop or PDA operating MS-DOS, again in 1991. The NEC V20 CPU ran at 5.37MHz, as much as 1MB of RAM was accessible, and the entire thing ran on two AA batteries, with a few coin cells to verify the detachable SRAM card (as much as 32MB of storage) didn’t lose knowledge. The display screen might show two shades of grey throughout its 240 x 128px, 4.8 x 1.8 inch LCD matrix with no backlight. It ran MS-DOS 3.22 with a customized model of Lotus 1-2-3. HP produced almost half 1,000,000 95LX models and over time launched many iterations of successors.



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