17 January 2008

OLPC XO Review and Teardown

A new initiative called One Laptop Per Child has the goal of getting a low-cost, entry-level notebook into the hands of children in developing countries. This notebook is the OLPC-XO which is an extremely basic version of what we might consider a portable computer, but comes in a durable, affordable, and easy-to-use package. In this review I will cover both the internal hardware aspect of this notebook, along with a comparison of it against more common consumer notebooks.

Specs
  • Processor: 433MHz AMD Geode
  • Display: 7.5" LCD 1200x900 (black and white)/800x600 (color)
  • RAM: 256MB DDR333
  • HD/Storage: 1GB Flash w/ SD Expansion slot
  • Wireless: 802.11b/g and 802.11s Mesh
  • Ports: 3 USB, Headphone, Microphone
  • Battery: 3.1Ah 6.5v
  • AC Adapter: 12v @1.42A, 100-240v switching
  • Dimensions: 9.52 x 8.97 x 1.26"
  • Weight: 3lbs 2.2oz
  • Price $400 with the "Give One, Get One" program ($200 per laptop)
Build and Design

The OLPC is targeted towards children and built for areas with less than perfect operating conditions. It is ruggedized and very sturdy even when compared to a high-end business notebook like a ThinkPad. Almost every inch of this notebook is designed to hold up against being dropped, thrown around, or carried by itself without any case.
The design of the OLPC is very simple, yet incredibly well thought out. The notebook is shaped like a thin lunchbox, with a carrying handle on top. All edges are rounded off, and the flat surfaces of the notebook are textured for easy gripping. Screen latches are nothing like what you would find on a standard notebook, with the WiFi antennas themselves acting as the latch mechanisms.
OLPC engineers even went one step further, making the notebook very easy to repair almost anywhere. With a single small Phillips screwdriver you can tear the entire thing apart to bare components in probably five minutes. The first time I cracked my OLPC open I had it apart in about 10 minutes including the time to take pictures for each step of the process. Another interesting design feature was the inclusion of spare parts. Housed inside the handle section are a number of spare screws for the entire notebook.
Screen
The screen on the OLPC is unique in that it works in both bright and dark environments. You can view the screen in black and white in bright sunlight, and then switch back into color by turning the backlight back on. Another interesting trait of this screen is the resolution changes between modes. In sunlight mode (black and white) it has a resolution of 1200x900, and in color has 800x600.
The reason for the change in resolution is rather technical, so if you want to know more about the screen resolution I'll direct you to the display section of the OLPC Wiki article.
Compared to even the most basic budget notebook, the OLPC's screen really falls short in terms of color, viewing angles, and brightness. Just moving a hair off of a direct viewing angle, the screen looks black and white. Colors when in optimal viewing range still don't compare to any
standard notebook, with a very grainy and washed out feel.

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