PS/55 Timeline

Multistation series had been rebadged as PS/55 in May. 1987 and had been continued for sale together with MCA PS/55 line.
Following diagram does not contain Multistation series in order to avoid confusion. Check the IBM Multistation Timeline.

PS/55    |
|
   PS/55Z or Laptop
1987 MAY
      5570-S
|
|
|
|
|
|
|
|
|
1988 APR
      5570-T

     5550-S/T
|
|
|
|
|
|
|
|
|
 1988 NOV
  5530Z-286
1989 MAY
      5570-V0x

     5550-V0x
|
|
|
|
|
|
|
|
|
NOV
    5530-T
|
|
|
|
|
|

    5530Z-SX
1990 MAY
      5570-V1x

     5550-V1x

     5545-T
|
|
|
|
|
|
OCT
       5580-Y

    5560-W

       5540-T

     5535-S

      5530-T
|
|
|
|
|
|
|
1991 MAR |
|
|
|

  5523-S
MAY
    5550-V2
|
|
|
|
|
|

     5510-T

     5510-Z
OCT
      5580-W
|
|
|
|
|
|
|
|

   5530-U

 8551-S N51sx


 5523SX


     5510-S
1992 FEB
    5551-W
|
|
|
|
|
|
  5527-U
  (N27sx)
JUN
     95XP-486

   5530-W
|
|
|
|
|
|
|
|

   5530-U-SLC/V
SEP  
     5560-N
|
|
|
|
|
|
|
OCT |
|
|
|
|

   9552-Y
 (C52 486SLC)
1993 JAN   |
|
9552-J
 (TP720C)
APR
   5551-N/Y
|
|
|
|
|
|

   5530-V2
OCT
    Server 95A

        9585

   5551-L

 PS/55E
 5538-Y/Z
|
|
|
|
|
|
|
1994 APR  
    5551-R

   5521Y

    5530-L
|
|
|
|
|
|
 
PC 720, 750    |
|
1995 JAN  PC720 6860 |
|
|
JUN  PC750 6886 |
|
|


PS/55 Index