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Mod. 5140 - IBM's First Laptop Computer

richardsapperdesign.com

11–20 of 45 posts

Re: Mod. 5140 - IBM's First Laptop Computer

#11

When I was a co-op student employee at IBM in the late 80s, I was given a desk in what was otherwise a storage room piled with stuff that had been used and then set aside. One box contained a 5140 convertible laptop with one of each peripheral "slice" -- printer, modem, expansion ports -- and the full set of technical manuals. I was allowed to take that beast home with me. I learned so much tinkering with that machin…

Any details to share re. specs, operating system?

Re: Mod. 5140 - IBM's First Laptop Computer

#12

Were these truly meant to be “laptops” or just portable computers? I guess if they have a battery is a fairly clear discriminator.

It came slightly after the IBM Portable PC (5155) which was released in 1984. That was a real luggable very similar to the Compaq. So I'd say the 5140 (which I've seen but never owned, I did think I was getting one once from a contest) was thought of as a luggable, but an improvement over what came before it.

Re: Mod. 5140 - IBM's First Laptop Computer

#13
post #4

Aesthetically this beats about 75% of the current laptop market. Would love to see some genuine creativity / cyberdeck type builds from laptop makers

I'm down. I can design and build it, if there are folks out there who are keen to do the other aspects of a business please feel free to reach out.

Re: Mod. 5140 - IBM's First Laptop Computer

#16
post #5

I used to have NEC MobilePro 900 like here: https://live.staticflickr.com/213/481422006_92cdaeb6ee_b.jpg I miss that form factor really. And BTW, I regret that WindowsCE is not the thing anymore. IMO it has the best development infrastructure out there backed with MSVC IDE. I classify OSes into two major groups: "writer OS" (all desktop OSes primarily) and "reader OS" (all mobiles). But there is a void in between for…

You may like this: https://kingjim.us/products/pomera-full-suite-typewriter-for...

Re: Mod. 5140 - IBM's First Laptop Computer

#17

I'd argue that given the max angle of the screen it cannot be used on your lap comfortably unless your eyes are on your navel. Hence it would be a battery powered portable pc and not a laptop.

The TRS 80 Model 100 is regularly called "the first laptop". You'd disagree with that.

Where's the line? Is a CHIP or M5 Cardputer portable or laptop?

Is it the hinge needed? In which case is a folding phone, a phone, laptop, or tablet?

(Not meaning to be aggressive. Curious about the fuzzy definition. Wanting to be convinced.)

Re: Mod. 5140 - IBM's First Laptop Computer

#19

When I was a co-op student employee at IBM in the late 80s, I was given a desk in what was otherwise a storage room piled with stuff that had been used and then set aside. One box contained a 5140 convertible laptop with one of each peripheral "slice" -- printer, modem, expansion ports -- and the full set of technical manuals. I was allowed to take that beast home with me. I learned so much tinkering with that machin…

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Re: Mod. 5140 - IBM's First Laptop Computer

#20
post #3

I wonder if John Titor could have used this?

Unlike the IBN 5100 [1] (which I guess actually was IBM's First Laptop Computer), the 5140 ran MS-DOS, and couldn't emulate the IBM/360 ISA like the IBN 5100 could, so it would be useless for John Titor because you couldn't hack SERN with it.

[1] https://en.wikipedia.org/wiki/IBM_5100

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