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Meaning of Legacy Thinkpad letters.
Posted: Sun Mar 26, 2017 1:02 pm
by Thinkpad4by3
So far the only 7 I can figure out are C,S,D,P,T,V,BJ
BJ-BubbleJet
C-Color Display
D-CD Drive
E-??
L-??
P-Pen Input
S-STN Display
T-Tablet
V-755 Machines with the removable backs.
X-??
Z-??
What do the other 4 mean? The only other thing is what was IBM thinking when they skipped numbers and just came back with others later(701c,310)
Re: Meaning of Legacy Thinkpad letters.
Posted: Sun Mar 26, 2017 1:24 pm
by fultontech
E=Enhanced. To oversimplify, the CPU was changed to a full 486 rather than the rebranded/expanded 386 IBM had
Re: Meaning of Legacy Thinkpad letters.
Posted: Sun Mar 26, 2017 2:33 pm
by Saucey
X was a latter CPU & possible motherboard upgrade and Z was an upgrade after that.
Looking at ThinkWiki, I believe the 'L' stood for lower end. Some of the ThinkPads with L in it had a lower cost screen.
You forgot P for pen enabled ThinkPads.
Re: Meaning of Legacy Thinkpad letters.
Posted: Sun Mar 26, 2017 3:08 pm
by axur-delmeria
The "L" suffix seems to exist only on the 760 series. It seems to be connected to presence of the ES1688 sound card and the lowest-resolution screen.
E --> 1st CPU upgrade?
X --> 2nd CPU upgrade?
Z --> 3rd CPU upgrade?
Re: Meaning of Legacy Thinkpad letters.
Posted: Mon Mar 27, 2017 8:15 pm
by kfzhu1229
As for E, D, X, Z in 770 series, it is much more clear.
None: initial model
D: Pentium MMX 233
E: Pentium II 266
ED: first DVD model with MPEG2 decoder
X: first with SXGA option or 14.1 XGA, better GPU with MPEG2 decoder integrated instead of as a separate card, PII 300, higher amount of soldered RAM
Z: Final revision: PII 366, larger HDD
Re: Meaning of Legacy Thinkpad letters.
Posted: Sat Apr 01, 2017 4:53 pm
by danikayser84
kfzhu1229 wrote:As for E, D, X, Z in 770 series, it is much more clear.
None: initial model
D: Pentium MMX 233
E: Pentium II 266
ED: first DVD model with MPEG2 decoder
X: first with SXGA option or 14.1 XGA, better GPU with MPEG2 decoder integrated instead of as a separate card, PII 300, higher amount of soldered RAM
Z: Final revision: PII 366, larger HDD
I think there is no 770D (I've never seen one, but ThinkWiki makes a reference to one), only 770 (even then, 770D would have been a DVD drive model, not a faster CPU)
Re: Meaning of Legacy Thinkpad letters.
Posted: Sat Apr 01, 2017 6:55 pm
by kfzhu1229
danikayser84 wrote:I think there is no 770D (I've never seen one, but ThinkWiki makes a reference to one), only 770 (even then, 770D would have been a DVD drive model, not a faster CPU)
Me neither. And true say. I don't even think it existed because 770ED was the first one to have DVD drive and first 770 series to have a hardware decoder (MPEG2)