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diff --git a/source/hardware_evolution.rst b/source/hardware_evolution.rst new file mode 100644 index 0000000..5d26cbe --- /dev/null +++ b/source/hardware_evolution.rst @@ -0,0 +1,36 @@ +================== +Hardware evolution +================== + +Hardware Evolution 2008 - 2012 +------------------------------ + +Although the XO has continued to look pretty much the same on the outside, the electronics inside have been changing. For details of the differences, refer to: + +- http://wiki.laptop.org/go/Hardware_specification for the XO 1.0 + +- http://wiki.laptop.org/go/Hardware_specification_1.5 + +- http://wiki.laptop.org/go/XO-1.75 + +- http://wiki.laptop.org/go/XO-4 + +To some extent, the changes were made to keep using high volume parts, and improve performance. The change from 1.5 to 1.75 involved a change of the processor from x86 to arm, and a reduction in power consumption of about 50%. With power management improvements, this permits the XO to last more than 3.5 hours. + +XO-4 is available in two models, XO-4 and XO-4 Touch. XO-4 provides multi touch input on the display. + +As you can see from the "boot time" comparison, lower power has not been at the expense of decreased performance. + ++--------+----------+---------+-----------+ +|Version |Hard Disk | Memory | Boot Time | ++========+==========+=========+===========+ +|XO 1.0 | 1 GB |256 MB | 76 s | ++--------+----------+---------+-----------+ +|XO 1.5 | 4 GB |1000 MB | 54 s | ++--------+----------+---------+-----------+ +|XO-1.75 | 4 GB |512 MB | 47 s | ++--------+----------+---------+-----------+ +|XO-4 |4 or 8 GB |1 or 2 GB| | ++--------+----------+---------+-----------+ + +TODO: Add xo-4 Boot Time |