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HP-95LX palmtop personal computer: A blast from the recent past?
12-17-2015, 10:33 PM
Post: #13
RE: HP-95LX palmtop personal computer: A blast from the recent past?
So this 95LX uses a NEC V20 processor.

I used to install these DIP-40 NEC V20 processors in the clone PC's around the 80's.
NEC claimed faster performance when compared to the original Intel 8088 processor.
Although real life benchmarks were not conclusive.

Today I was digging in my electronics components boxes in the basement and found these chips from that era.

In the picture, top down:
- NEC μPD71055C PIU from 1986.
- NEC μPD70108C aka V20 16-bit CPU from 1986 (clone of Intel 8088)
- Intel 8080A 8-bit CPU from after 1974.

[Image: Intel-vs-NEC_chips_001.jpg]


And this beauty from Intel: A BASIC interpreter on a System-On-a-Chip.
I first heard about the 803x/5x development platform when I was in Belgium during the mid 80's, and bought one kit from Intel Brussels, complete with full documentation. Spent a small fortune at the time.

I started with this BASIC chip but the interpreter was slow, so later moved to the 8051 developing on PL/M in order to be able to fulfill the required performance on the projects I was involved in.


In the picture: Intel P8052AH-BASIC Version 1.1 from 1983.

[Image: Intel-vs-NEC_chips_002.jpg]

Jose Mesquita
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RE: HP-95LX palmtop personal computer: A blast from the recent past? - jebem - 12-17-2015 10:33 PM



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