Difference between revisions of "Karma/Specifications"
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Since a large percentage (if not the majority) of Karma users are envisioned to be using OLPC XO-1 laptops, netbooks, older hardware or generally relatively slow systems there are several performance constraints that need to be taken into account when designing Karma lessons. | Since a large percentage (if not the majority) of Karma users are envisioned to be using OLPC XO-1 laptops, netbooks, older hardware or generally relatively slow systems there are several performance constraints that need to be taken into account when designing Karma lessons. | ||
| − | * CPU/Memory: | + | * CPU/Memory: The baseline regarding available performance is the XO-1 laptop which comes with an AMD Geode LX 433MHz CPU and 256MB RAM [http://wiki.sugarlabs.org/go/Karma/Specifications full specifications]. This limits the use of high-resolution multimedia, animations and videos to some degree. |
* Display: Karma lessons should work well on displays with a resolution of 1024*768 (whereby a part of the display may be taken up by browser UI elements!). | * Display: Karma lessons should work well on displays with a resolution of 1024*768 (whereby a part of the display may be taken up by browser UI elements!). | ||
* Mass storage: Since especially the XO-1 laptop only has very limited local mass storage (1GB) lessons should be kept reasonably small. | * Mass storage: Since especially the XO-1 laptop only has very limited local mass storage (1GB) lessons should be kept reasonably small. | ||
Revision as of 06:03, 12 August 2009
Introduction
Constraints
Since a large percentage (if not the majority) of Karma users are envisioned to be using OLPC XO-1 laptops, netbooks, older hardware or generally relatively slow systems there are several performance constraints that need to be taken into account when designing Karma lessons.
- CPU/Memory: The baseline regarding available performance is the XO-1 laptop which comes with an AMD Geode LX 433MHz CPU and 256MB RAM full specifications. This limits the use of high-resolution multimedia, animations and videos to some degree.
- Display: Karma lessons should work well on displays with a resolution of 1024*768 (whereby a part of the display may be taken up by browser UI elements!).
- Mass storage: Since especially the XO-1 laptop only has very limited local mass storage (1GB) lessons should be kept reasonably small.
- Connectivity: Karma lessons must not assume constant connectivity with a locally (e.g. XS) or globally available server. Support for storing data locally will be provided by Karma.
Animations
- Format(s): TBD
- Recommended tools: TBD
- Notes: TBD
- ...
Images
- Format(s): JPEG, PNG, SVG (?)
- Recommended tools: Adobe Illustrator (non-free), CorelDRAW (non-free), GIMP, Inkscape
- Max. resolution: 1200*900
- Notes: TBD
Sound
- Format(s): OGG Vorbis
- Bit rate: TBD
- Max. size per lesson: 3~4MB
- Recommended tools: Audacity
- Notes: TBD
Video
- Format(s): TBD
- Recommended tools: TBD
- Notes: TBD
- ...