[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] C test model 1 (C-Test 1), also known as C1.
...pes were complete systems, externally appearing very similar to production XO-1s (CL1A). OLPC received forty of these for Christmas, 2009.
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...ow power consumption as it will be used in areas with poor or non-existent power infrastructure, with electricity often very expensive for the user.
Replacement XO batteries and chargers (and other [[parts]]) were available for sale from t
56 KB (9,200 words) - 17:30, 17 June 2016
...ck and key technique in the following article help, with an initial master diagram, with no text upon it, being prepared and then the English version as a lay
...preparing images, though not necessarily a linguist, could use the master diagram and the text from a text file, and, guided by the layout example, produce a
40 KB (6,833 words) - 05:22, 22 May 2013
==XO-1 Software Specification==
Careful stewardship of battery power is critical.
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This is a description of the power distribution scheme for the XO laptop.
...[Requirements]] page contains the user-facing requirements associated with Power Management.
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The default system software for the XO laptop includes child-friendly [[Activities]], the [[Sugar]] [[user interfa
This page lists some of them, the [[#Application environment diagram|diagram below]] shows how they fit together.
14 KB (1,894 words) - 19:17, 5 August 2013
In order to support very low power operation, the [[Hardware#XO|XO laptop]] uses a secondary Display CONtroller, or DCON. This secondary cont
The following is a simple diagram detailing the various connections between the CPU and the DCON:
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...ly. An easier way to repair a laptop with this problem is described in [[XO Replacing SPI flash|Replacing the SPI Flash]].
...e proper attachment of a CMOS oscillator and 5-pin EC serial header to the XO's motherboard:
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...n colors have been randomly chosen; you can change them by clicking in the XO icon: keep clicking until you get an acceptable color combination. (This wi
The Sugar desktop starts up in Home mode. This shows an XO icon, representing you and your laptop, in the centre of the screen. Surro
25 KB (4,361 words) - 20:35, 3 November 2011
...an give some more information, like when you last used the XO, whether the power indicator turns on, whether the display backlight turns on. --[[User:Quozl|
how do download windows xp on to my olpc xo and how do you access your downloads
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...esolved. Please include the firmware version you are using -- displayed at power on time on the second line: e.g. "OpenFirmware CL1 QA62 Q2A"; the QA62 is t
...ción de la laptop XO con etiquetas de características<font size="-1"><br>XO Laptop Configuration with Labeling of Features</font>]]
57 KB (9,325 words) - 18:24, 9 February 2009
...n#Display|display]] is one of the innovative features of the [[Hardware#XO|XO laptop]]. It can be used in darkness, and also in direct sunlight. Becaus
* low power operation
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|source = Power Management}}
=XO-1 Software Specification=
40 KB (6,526 words) - 09:41, 22 September 2011
This is a space for presenting XO peripheral ideas in a concise manner for review by the OLPC core team. Feel
== Power ==
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...ached to a DLB2701 access point, which is a 250 mw radio. Sulo had taken a XO with him to test the AP range and was satisfied with the signal around the
Connectivity diagram for Open learning Exchange to DOE and the pilot schools.
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How to fix an XO laptop suffering from problems with the [http://en.wikipedia.org/wiki/Real-
...rning to the same problem on next boot. Affects XO-1, XO-1.5, XO-1.75 and XO-4.
19 KB (3,164 words) - 01:28, 2 January 2014
...power distribution diagram for an [[Hardware_specification#Laptop_Hardware|XO-1 laptop]]:
...esistors) not present in production machines. See [[XO_Motherboard_Repair|XO motherboard photo]] for the location of these blocks.
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[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] model C5.
The C5 was one of the XO-1.5 (CL1B) versions in production.
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...eloper keys]]. Developer keys are the unique cryptographic signatures for XO laptops that permit access to the system [[Firmware|firmware]].
* the group of XO laptops, which may be nearby or distant.
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[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] Alpha test model first A-Test, also known as A1.
...the first OLPC XO-1.5 electronics prototype boards occurred May 21, 2009. Power distribution debugging continued over the weekend, and formal debug and BIO
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[[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
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[[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.
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[[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.
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...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).
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[[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
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...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.
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...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
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...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]].
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...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)]]
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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=
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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.
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This page describes the [[Tinderbox_Power|Tinderbox]] version of the [[XO-1.75]] [[XO_1.75_C2|C2]] laptop.
=Power Distribution=
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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.
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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.
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...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 [
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[[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
...top. A [[Tinderbox_Power|Tinderbox]] is a laptop intimately wired up to a power measurement system.
=Power Distribution=
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[[XO-4|XO-4 Touch Laptop]] C-stage test model, also known as C-test or C1.
...n technology from [http://www.neonode.com/ Neonode], while some are simply XO-4, a slightly lower cost alternative.
6 KB (1,060 words) - 23:45, 12 September 2013
...o a user laptop that is behind a NAT router. You are at the host. In the diagram, black lines are data flow, and the red lines show the direction of network
The diagram on the right shows the relay connected to the target by back to back serial
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| as above, but write all output to the FILE. ''(not available on XO-1)''
How to use an XO as a serial terminal to another XO, using a USB serial adapter.
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[[XO-4|XO-4 Touch Laptop]] production model, also known as C-test 2 or C2.
...n technology from [http://www.neonode.com/ Neonode], while some are simply XO-4, a slightly lower cost alternative.
7 KB (1,175 words) - 14:28, 5 March 2014
