My take on laptop for bschool. I think the two most important attributes for a school laptop is portability and battery life. With textbooks fighting for space in your backpack, every cubic inch and ounce counts. Performance isn’t really an issue with the modern laptops, even Atom processor can handle all the PowerPoint and Excel you can throw at it, but having a long battery life makes life easier – no adapter to carry, no need to fight for outlets.
Size: 13.3”-14” -- It offers a good balance of screen real-estate and weight. They’ll usually weigh in below 5 lbs. I would not go with 15” or larger laptop because it’s difficult to fit it in your backpack, and much heavier. Smaller screen size lowers productivity, as you will be scrolling around just to see the entire window.
Processor: Most modern processors will do. I prefer CULV lines of processors, which live on a diet of 10W or less. This will do wonders for your battery life. Most CULV laptops will have 6+ hours of battery life with a 6-cell battery. Almost enough for a full days (or nights) work.
OS/Memory: Windows XP – 2 GB should be plenty
Windows Vista – don’t bother, either downgrade to XP or upgrade to Windows 7.
Windows 7 – 4 GB (if you are have a 64 bit processor)
Ports/Media:VGA (monitor) – must have, it’ll be very useful for plugging in your laptop for presentations. I couldn’t go with a laptop with only DVI or mini-DVI ports (a.k.a Macs) since DVI ports aren’t universally accepted.
DVD drive – useful, but not necessary. Data storage on DVD/CDs are fading, but when you need one, it’s nice to have (this is one reason for laptops over netbooks).
Everything else are either standard with all laptops (USB, audio) or not necessary (HDMI, Firewire).
Top brand for reliability:Lenovo – The ThinkPad has been the gold standard for business laptop. Other Lenovo lines are also very good, except for the consumer grade G-series.
ASUS – A little known brand among the general population, but solid reputation among the 1337 h4x0rs. It started out making mother boards, and moved on to computers. It’s UL line of laptops are very good, with excellent battery life (10+ hours).
Worst brand for reliability:Sony – Expensive POS. I do not know any Sony (Vaio) owners who did not have problems with the product. You are pretty much paying $400 extra for the badge.