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Table 7. Specifications (continued)
Feature Description
Modem v ThinkPad Modem (MDC-1.5, 56 kbps HDA)
Touch pad v UltraNav
®
ThinkLight
®
Yes
Battery v Li-ion battery (6 cells) 5.2 Ah
v Li-ion battery (9 cells) 7.8 Ah
v Ultrabay Slim Li Polymer battery (3 cells) (option)
AC adapter v 65-watt type
v 90-watt type
Preinstalled operating
system
v Windows XP Professional
v Windows Vista
™
Home Premium (32 bit)
v Windows Vista Business (32 bit)
v Windows Vista Business (64 bit)
v Windows Vista Ultimate (32 bit)
v Linux Certification
ThinkPad T61 and T61p (14.1-inch) 49