[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] Alpha test model second A-Test, also known as A2.
* "XO-1.5", "A2", and a serial number hand-written in the battery compartment
6 KB (980 words) - 23:43, 21 August 2013
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] Beta test model (B-Test), also known as B1.
XO-1.5 use Q3xxx firmware releases. These will not work on an XO-1.
5 KB (903 words) - 23:41, 21 August 2013
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] Beta test model 2 (B-Test 2), also known as B2.
...d of these in September, 2009. If you have a pre-production version of an XO-1.5, chances are it is a B2 version.
6 KB (1,001 words) - 00:06, 2 May 2014
...e Laptop per Child to the Vung Vieng Village. [http://seanlaurence.com/the-xo-travels-to-the-vung-vieng-village-floating-school-in-vietnam/ Read how she
...Vung Vieng Fishing Village Laptop Project began when Tuyen saw me using my XO on the Indochina Junk's "Red Dragon" in February, 2009. Tuyen and I began b
33 KB (5,380 words) - 17:37, 20 October 2015
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] Beta test model 3 (B-Test 3), also known as B3.
* Large polymer (black) capacitors in the processor power supply instead of tantalum (yellow).
4 KB (623 words) - 23:36, 21 August 2013
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] C test model 2 (C-Test 2), also known as C2.
...1K were Ramp (start of production) units, and are externally identical to XO-1 w. capacitive (single) touchpad. [[Image:XO_1.5_Annotated_Hinge_Cover.jp
8 KB (1,236 words) - 22:50, 28 October 2013
...and regression testing. Functional testing is about ensuring that the OLPC XO functions as it was intended by the designers. This is different to usabili
...ld's poorest children by providing each child with a rugged, low-cost, low-power, connected laptop with content and software designed for collaborative, joy
17 KB (2,069 words) - 04:11, 6 August 2013
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] model C3.
The C3 was one of the XO-1.5 (CL1B) versions in production.
4 KB (709 words) - 22:51, 28 October 2013
...aptop|XO-1]]. Power consumption and purchase cost are both lower than the XO-1.5
XO-1.75 machines ship with a [[Releases|new software release]] based on Fedora
16 KB (2,340 words) - 00:21, 4 March 2014
...planned OLPC hardware release is the [[XO-4]] laptop, a successor to the [[XO-1.75]] and due in 2013.
...610 ARM system-on-a-chip from Marvell, which is also used in the [[XO-1.75|XO-1.75 laptop]].
11 KB (1,554 words) - 17:34, 3 October 2014
...pment of the [[Embedded controller]] and the [[XO_1.75_HOST_to_EC_Protocol|XO-1.75 Host/EC communications protocol]].
* [[Media:XO1.75_EC_Breadboard_Block.pdf|Block Diagram (PDF)]]
2 KB (240 words) - 00:50, 13 October 2010
The default system software for the XO laptop includes child-friendly Activities, the Sugar user interface, and ma
This page enumerates some of them, the [[#Application environment diagram|diagram below]] shows how they fit together.
15 KB (2,030 words) - 21:59, 24 May 2011
This page describes the [[Hardware#XO_Laptop|XO]] DC Input circuit ([[XO_DC_Input|requirements]]) in detail.
...e of input voltages (-40 to 40V), and is also designed to seek the maximum power point of a solar input device.
11 KB (1,795 words) - 20:52, 2 May 2011
This page describes the [[Tinderbox_Power|Tinderbox]] version of the [[XO-3]] [[XO_3_A1|A1]] tablet.
=Power Distribution=
4 KB (692 words) - 15:27, 12 April 2012
This page describes the power distribution network of the [[XO-1.75]] laptop, specifically the production [[XO_1.75_C2|C2]] version.
...voltages. Low power is one of our highest design goals, and an efficient power storage and distribution network is essential.
5 KB (719 words) - 00:41, 12 April 2012
This page describes the [[Tinderbox_Power|Tinderbox]] version of the [[XO-1.75]] [[XO_1.75_C2|C2]] laptop.
=Power Distribution=
5 KB (831 words) - 19:36, 5 April 2012
Your XO is built and designed for repair work to be completed with only your hands
For photos and step-by-step instructions on repairing your XO or putting replacement parts in, go to http://wiki.laptop.org/go/Repair.
8 KB (1,477 words) - 15:36, 9 April 2012
This page details the power savings provided by the [[Hardware#XO_Laptop|XO Laptop]] display architecture.
...ype]] provided an excellent opportunity to directly compare differences in power consumption.
7 KB (1,053 words) - 18:20, 10 April 2012
...keeping the industrial design and batteries of the [[Hardware#XO-1_Laptop|XO-1]].
XO-4 laptops ship with OLPC OS [[13.2.7]] based on Fedora 18, including both [
16 KB (2,351 words) - 01:02, 25 April 2016
[[XO-4|XO-4 Touch Laptop]] Beta test model, also known as B-test or B1.
...O-4 Touch]]. The B1 bring up happened in the middle of September, 2012. XO-4 B1 units all have prototype multi-touch touchscreens using touchscreen te
9 KB (1,459 words) - 00:39, 3 November 2012
