Computers

Coputer topics

Post HDTV resolution era

Television technology is developing rapidly. Consumers are just gaining access to the 3D TVs when the next disaster is already on the way. Maybe the next revolution is Super Resolution HD-TV. It seem stat we are entering post-fullHDTV resolution (1920×1080) era. Just few years ago full HD was considered the ultimate resolution that everybody were

Sinclair ZX Spectrum 30th Anniversary

The ZX Spectrum is 30 years old. Sinclair ZX Spectrum 30th Anniversary is today. Happy birthday Spec. ZX Spectrum, the microcomputer launched in 1982 by Sinclair Research (Cambridge, UK) is seen by many today as the inspiration for a generation of eager young programmers, software and game designers in the UK. It has inspired many

A new IDE concept

Programming environments (IDEs) have been stayed pretty much similar for almost 20 years or so. We have a working environment and editor. Light Table – a new IDE concept article hints that that things could be different and more advanced if we want. Light Table – a new IDE concept article mentions that despite the

Use sound card for science experiments

EFFICIENT SOUND CARD BASED EXPERIMENTION AT DIFFERENT LEVELS OF NATURAL SCIENCE EDUCATION paper tells that sound cards can be turned into measurement tools, making science experimentation very efficient and cheap. Sound-card experimentation becomes really viable only if we demonstrate how to connect different sensors to the sound card and provide suitable open-source software to support

Resistance grounded laptop PSU output

I have one pretty new ACER 5552G laptop that cam with with Delta Electronics ADP-90CD D8 power supply that has grounding practice different from other laptops I have seen (normally grounded or floating): The power supply output (otherwise floating) – side seems to be connected to mains ground through 1 kohms resistance on the power

Isolated laptop power supply issues

I have earlier written about grounded laptop power supply problems. Other popular laptop power supply configuration used is floating output. There are power supplies without ground, for example some Apple laptops and many other brands. The power supplies where there is no ground on connection on the mains side are for sure built in this

Making Ubuntu Linux better for tablet

My friend Henri Sundelin told few days ago that that he had became tablet-crazy and decided to get himself a proper tablet. Not those proprietary iPad or Android stuff, but a real computer. Ubuntu (Precise) on Samsung Slate 7 article tells that the Windows 7 that came with it was a truly poor excuse for

Commercial Quantum Computer?

Quantum computers could revolutionize the way we tackle problems that stump even the best classical computers. Single atom transistor recently introduced has been seen as a tool that could lead the way to building a quantum computer. For general introduction how quantum computer work, read A tale of two qubits: how quantum computers work article.

iPad 3 4G Teardown

Is it “The New iPad?” “iPad HD?” “iPad 3?” Who cares? All we know is this: It’s here! iPad 3 4G Teardown In this video ifixit crew covers the biggest changes to the new iPad, including the fancy-pants 2048×1536 Retina Display, A5X system on a chip processor, updated 42.5 watt-hour battery and 5 megapixel HD

Amazon Cloud size and details

How many servers does it take to power Amazon’s huge cloud computing operation? Like many large Internet companies, Amazon doesn’t disclose details of its infrastructure. Estimate: Amazon Cloud Backed by 450,000 Servers article tells that a researcher from Accenture Technology Labs estimates that Amazon Web Services is using at least 454,400 servers in seven data