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Solid-state drive

DDR SDRAM based SSD. Max 128 GB and 3072 MB/s. PCIe, DRAM and NAND-based SSD. It uses an external power supply to make the DRAM non-volatile. As of 2010[update], most SSDs use NAND-based flash memory, which retains data without power. Hybrid drives or solid state hybrid drives (SSHD) combine the features of SSDs and HDDs in the same unit, containing a large hard disk drive and an SSD cache to improve performance of frequently accessed data.[9][10][11] Development and history[edit] Early SSDs using RAM and similar technology[edit] SSDs had origins in the 1950s with two similar technologies: magnetic core memory and card capacitor read-only store (CCROS).[12][13] These auxiliary memory units (as contemporaries called them) emerged during the era of vacuum-tube computers. Later, in the 1970s and 1980s, SSDs were implemented in semiconductor memory for early supercomputers of IBM, Amdahl and Cray;[15] however, the prohibitively high price of the built-to-order SSDs made them quite seldom used. Related:  Newish Computerish

The Past, Present, and Future of Data Storage As we approach the end of 2011 and look forward to another year, we pause to reflect on the long history of data storage. Mankind's ability to create, process, store, and recall information is light years ahead of the days of cave paintings and engravings on stone tablets. Vast amounts of information can be stored on drives smaller than your thumb, and data centers are cropping up at an increasingly high rate. What does the future of data storage hold? Embed this image on your site: World's Smallest Hard Drive Built of Atoms Just 96 atoms make up one byte of magnetic storage space. - Scientists have built a magnetic storage device made of 96 atoms. - The advance could lead to tiny hard drives able to store 200 to 300 times more information than they can today. Hard drives could one day be the size of rice grains, powering music players so small they would fit inside your ear. Scientists at IBM and the German Center for Free-Electron Laser Science have built the world's smallest unit of magnetic storage, using just 96 atoms to create one byte of data. The advance could lead to tiny hard drives able to store 200 to 300 times more information than they can today. PHOTOS: 5 Computer Techs to Replace Silicon Chips "An effect that is common in nature can produce this information storage idea," said Sebastian Loth of CFEL, lead author of the research, which is being published today in the journal Science. The natural phenomenon Loth is referring to has to do with the way electrons spin inside an atom.

How To Become A Hacker Copyright © 2001 Eric S. Raymond As editor of the Jargon File and author of a few other well-known documents of similar nature, I often get email requests from enthusiastic network newbies asking (in effect) "how can I learn to be a wizardly hacker?". Back in 1996 I noticed that there didn't seem to be any other FAQs or web documents that addressed this vital question, so I started this one. If you are reading a snapshot of this document offline, the current version lives at Note: there is a list of Frequently Asked Questions at the end of this document. Numerous translations of this document are available: ArabicBelorussianChinese, Danish, Dutch, Estonian, FrenchGerman, GreekItalianHebrew, Japanese, Lithuanian, Norwegian, PersianPortuguese (Brazilian), RomanianSpanish, Turkish, and Swedish. The five-dots-in-nine-squares diagram that decorates this document is called a glider. If you want to be a hacker, keep reading. 1. 2. 3. 5. 2. 3.

iPads can’t improve learning without good teaching Pt 2 – Writing Used with permission from Debbie Ridpath Ohi at Inkygirl.com ( ) Writing and technology has been a controversial subject for many traditionalists in education. “Spell check stops children from learning to spell”. “All students do today is copy and paste from Wikipedia and Google searched articles.” ” Children need to handwrite all their drafts”. “William Shakespeare didn’t have a laptop” ( OK, i just threw that in for fun!) At the same time, of course, as a teacher I have been subjected to countless reports and stories typed in ridiculous unreadable coloured fonts, decorated with superfluous clip art and WordArt headings and thousands of “death by Powerpoints” unnecessarily printed out to hand up to me. 20 years of computers as a publishing tool has not necessarily improved the standard of students’ writing skills. The key words in that last sentence are of course publishing and writing. What is writing? Now originally, communication was verbal.

HackQuest :: Learn about Hacking, Cracking, JavaScript, PHP, Cryptology and Password security Lessons from an iPad Rollout Mobile Computing | Feature Lessons from an iPad Rollout Florida's "first iPad high school" has deployed 300 iPads to its high school teachers and students. Thanks to preparations on the infrastructure, training, and security fronts, the fall rollout has proved relatively snag-free. By Bridget McCrea09/21/11 In March and June, THE Journal reported on The Master's Academy and the challenges it was tackling on the way to becoming Florida's first iPad school. Preparations: Training, Bandwidth, Security "We distributed them about a week before school," said Salerno, "and the teachers and students are doing very well with the devices so far." Campus WiFi coverage was one area that Salerno was holding his breath over when the devices were fired up Aug. 15. The approach has worked well so far. Device security was another point of concern prior to rollout, especially because students would be taking their iPads home every night.

7 Most Notorious Computer Hacker Groups of All Time With the recent attack on PlayStation Network and a bunch of high-profile websites, computer hackers are back in the limelight again. Hackers and hacker groups were quite famous in the 80’s and 90’s but their popularity started fading since the Y2K days. Today, we are once again witnessing hackers threatening to take on giant corporations sending chills down everyone's spine. We have already featured here some of the most infamous black hat hackers of all time. Masters of Deception This New York-based group was responsible for notorious acts such as downloading confidential credit card histories of stars like Julia Roberts, breaking into AT&T’s computer system and stealing credit card numbers. Legion of Doom MOD’s biggest enemy Legion of Doom was a famous hacker group founded by a hacker called Lex Luthor (real name: Vincent Louis Gelormine). Chaos Computer Club Chaos Computer Club or CCC is a hacker organization based in Germany and other German-speaking countries. Milw0rm Anonymous LulzSec

Five Clever Gadgets | February Belkin WeMo Switch - Belkin This app/plug combination package allows you to use your home wi-fi network to turn on and off electronic devices. The intuitive app is easy to set up, and allows you to activate switches manually, on a schedule, or by activating the motion sensors when you walk into a room. Advertisement Where To Buy: Available through Belkin or the Apple store Cost: From $A59.95 Instant Wine Chiller - Ravi If you want to chill your white wine instantly (but don't want to water it down with ice cubes) consider the Instant Wine Chiller. Where To Buy: Amazon and Bed Bath & Beyond Cost: $US31.98 ($A30.90) DoorBot wi-fi doorbell camera - Edison Junior Originally featured on the crowd-funding website Christie Street, the DoorBot is now a fully-realized device/app combo that transmits an audio and video feed over your wi-fi network whenever someone rings the doorbell. Where To Buy: Christie Street Cost: $US189 ($A182.40) Misfit Shine Fitness Tracker - Misfit Wearables Cost: $US99 ($A95.60)

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