By timothy from Slashdot's muscle-memory department
An anonymous reader writes "I am tasked with developing a service project to teach students in a Bangladeshi village how to type. The school has about 500 students, 12 computers donated to them in 2006, and a limited electricity supply. The students will be given job placement opportunities at a local firm in the city once they reach a certain proficiency. Therefore, we are trying to teach as many of them typing skills as possible. The problem: limited electricity, limited computers, many kids. I have some additional funding collected through donations. Instead of buying more computers, I am looking for a cost effective way that does not need a steady flow of electricity. I realize that to teach typing, I do not need a computer. I could achieve the same using a keyboard connected to a display. A solar powered calculator is a perfect example of a cheap device which has a numpad for input and an LCD for display. But so far I have not come across a device that has a qwerty keyboard and an LCD to display what's typed. I know there are some gaming keyboards that have LCDs built in but they are quite expensive. I am aiming to build a device that cost below USD 50. I considered using typewriters but they are in limited supply on the market. I also considered OLPC but it is double my anticipated budget. Do you have other suggestions?"
Considering that (at least in China) sub-$50 Android tablets with capacitive
screens are already here, I wish the Alphasmart line
was cheaper, but apparently it currently starts at $169
.Read Replies (0)
By timothy from Slashdot's counting-lo-the-ears-of-corn department
writes that business intelligence tools have come to agribusiness
, with farmers and cattle ranchers using many of the same tools found in numerous corporate cubicles, but fed by sensors you won't find in cubeland. "Machines (such as this one from DeLaval) keep track of all kinds of data about each cow, including the chemical properties of its milk, and flag when a particular cow is having problems or could be sick. The software can compare current data with historical patterns for the entire herd, and relate to weather conditions and other seasonal variations. Now a farmer can track his herd on his iPad without having to get out of bed, or even from another state. And Farmeron attempts to aggregate all farm-related data in a single Web portal. The company was started by Matija Kopi, the CEO who calls himself the 'Main Cowboy in the Saddle' and Marko Dukmeni, the CTO who is their Chief Tractor Hacker. They offer monthly accounts (starting at 25 cents per animal per month) to track animal physical characteristics along with milk production, medical treatments, and even particular feeding group schedules."Read Replies (0)
By Unknown Lamer from Slashdot's who-do-you-trust department
From David Dahl
's weblog: "Good news! With a lot of hard work – I want to tip my hat to Ryan Sleevi at Google – the W3C Web Crypto API First Public Working Draft has been published.
If you have an interest in cryptography or DOM APIs and especially an interest in crypto-in-the-DOM, please read the draft and forward any commentary to the comments mailing list: <tt>email@example.com</tt>"
This should be helpful in implementing the Cryptocat
vision. Features include a secure random number generator, key generation and management primitives, and cipher primitives. The use cases section
suggests multi-factor auth, protected document exchange, and secure (from the) cloud storage: "When storing data with remote service providers, users may wish to protect the confidentiality of their documents and data prior to uploading them. The Web Cryptography API allows an application to have a user select a private or secret key, to either derive encryption keys from the selected key or to directly encrypt documents using this key, and then to upload the transformed/encrypted data to the service provider using existing APIs."Read Replies (0)