PS/55 Timeline

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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			\| \| \|

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