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The T-series
Thinkpad is something of a legend. It was introduced as the flagship for IBM's
Thinkpad line-up around the turn of the century with the
Thinkpad T20 notebooks and has maintained its status as the premium notebook in the
Thinkpad line-up ever since. The T400 - or T500, for those who prefer the 15" screen - is now manufactured by
Lenovo, but the quality control has actually improved since the
Thinkpad series was turned over to its new corporate parent.
The difference between a T400 and a normal consumer laptop is apparent at first glance. While most laptops have plastic hinges, the T400's hinges are metal and allow for the screen to be opened 180 degrees. The screen is reinforced with a roll cage which prevents flex during both normal use and in the event of the laptop being dropped. There is very little give in the unit when it is held from one edge. There are less apparent details, as well, such as the shock-mounted hard drive which helps prevent data loss if the laptop is damaged and small drain holes in the keyboard which make the laptop more resistant to any liquid spill on top of it.
Besides the durability of the T400, its functionality is superb. Thinkpad keyboards are legendary as the best on any laptop, and the T400 continues the tradition. The screen is bit brighter than most other laptops, and when equipped with the optional 9-cell battery the T400 can last seven or eight hours on a charge. A well equipped T400, with discrete graphics and the mentioned 9-cell battery, will cost a little over $1000 dollars, which is quite reasonable for such an excellent business laptop.