The PS/2 CL57SX was a microchannel laptop (with a microchannel slot in its
docking station) and a really nice TFT screen.  It cost about $10K new.
The first models of ThinkPad were the 300, 500, and 700.
The CL57SX was actually the last PS/2 noteboook.  Before it were the
N51SX, N45SL, N41SC, L40SX, P75, and the P70.  The P75 and P70 were
lunchbox-style.  There was also the weird little PS/2e.
Peace...  Sridhar
On Tue, 29 Oct 2002, Lawrence Walker wrote:
   Oooh, what catches my eye is the PS/2 CL57 SX color.
I wonder if that is a
 L-T version of the 8557, announce date: June, 1991. I wonder if it also has a
 SCSI port.  Never heard of this model before. Damn, I want one.
 Lawrence
  +AD4- I'm looking for the model name/number
and date of
 +AD4- introduction of the first IBM ThinkPad,
 The laptop sales literature I have says:
   Thinkpad
     1992-10-05: Thinkpad name announced
             models: 700,700C,700T,300
   pre-Thinkpad
     1992-07-22: PS/note N45SL
     1992-03-24: PS/2 CL57 SX color announced
     1991-02: L40SX
 John A.
 PS/note.  The successor to +ACI-PS/Boat+ACI-.
 
 lgwalker(a)mts.net
 bigwalk_ca(a)yahoo.com