31 Jan 10 7 of the Best Free Linux Calculators

An anonymous reader writes "One of the basic utilities supplied with any operating system is a desktop calculator. These are often simple utilities that are perfectly adequate for basic use. They typically include trigonometric functions, logarithms, factorials, parentheses and a memory function. However, the calculators featured in this article are significantly more sophisticated with the ability to process difficult mathematical functions, to plot graphs in 2D and 3D, and much more. Occasionally, the calculator tool provided with an operating system did not engender any confidence. The classic example being the calculator shipped with Windows 3.1 which could not even reliably subtract two numbers. Rest assured, the calculators listed below are of precision quality."

Read more of this story at Slashdot.

Tagi: calculator tool, desktop calculator, slashdot, logarithms, parentheses, calculators, graphs, operating system, memory, linux

04 Mar 10 Kingston trumpets ultra-low voltage HyperX DDR3 memory

It may not mean much to your grandmother, but performance hounds are sure to jump all over this one. Kingston has just rolled out a few new slices of DIMM deliciousness, and it's claiming that the new HyperX DDR3 modules are the world's fastest low-voltage memory sticks. The dual-channel kit ships with two XMP-ready profiles already baked in, with the 1.35 volts at 1866MHz being hailed as "a world's first for speed matching higher frequency with a lower voltage." All told, the company is debuting a trio of products in the LoVo line -- the dual-profile kit, a mainstream low voltage 1600MHz, 1.35 volt kit and an ultra-low voltage 1333MHz, 1.25 volt kit. -- and you can pick 'em up soon in 4GB bundles for between $154 to $203. These guys did, and they're stoked.

Kingston trumpets ultra-low voltage HyperX DDR3 memory originally appeared on Engadget on Thu, 04 Mar 2010 03:02:00 EST. Please see our terms for use of feeds.

Permalink Hot Hardware  |  PR Newswire  | Email this | Comments
Tagi: pr newswire, dual profile, hyperx, higher frequency, low voltage, xmp, dual channel, hounds, volts, grandmother, kingston, nbsp, ships, profiles, memory

04 Mar 10 Lenovo's IdeaPad Y460 now on sale, and not a moment too soon

Lenovo may have introduced four billion new laptops at CES this year, but that's not keeping us from tracking the ship date of every last one. With Intel's mobile Core i5 still tough to find in shipping machines -- particularly ones that could substitute as your work rig -- we couldn't be happier to see the IdeaPad Y460 up for order at the outfit's webstore. The base unit gets going at $999 and includes a 2.13GHz Core i3-330M CPU, Windows 7 Home Premium (64-bit), 4GB of DDR3 memory, a 14-inch LED-backlit display (1,366 x 768), a 320GB hard drive, 6-cell battery and a dual-layer DVD writer. The $1,199 model, though, is clearly where it's at, with a 2.4GHz Core i5-520M, ATI's Mobility Radeon HD 5650 (1GB) GPU and a 500GB HDD to make things interesting. Both units should ship within a fortnight, so the only question left to answer is why you're still dilly-dallying around.

[Thanks, OberCFS]

Lenovo's IdeaPad Y460 now on sale, and not a moment too soon originally appeared on Engadget on Thu, 04 Mar 2010 04:36:00 EST. Please see our terms for use of feeds.

Permalink   |  Lenovo  | Email this | Comments
Tagi: dual layer dvd writer, shipping machines, cell battery, billi, fortnight, gpu, 4ghz, ly, rig, hdd, laptops, hard drive, nbsp, hd, ces, intel, memory

10 Apr 10 End of the CPU? HP demos configurable memristor

Looking to extend Moore's Law, Hewlett-Packard demonstrates "stateful logic" made from memristors that can be dynamically changed between memory and logic functionality using resistance, rather than charge and voltage, as a state variable.



HewlettPackard - Memristor - Moore's law - Central processing unit - Moore
Tagi: central processing unit, state variable, hewlett packard, logic, hp, memory

04 Sep 10 Cambridge scientists develop lower-than-low power WORM memory

Researchers at Cambridge University have recently published a paper on their new type of WORM (write once read many) memory which is even more low powered than the ones that came before it. The new electron-only design of the memory is solution processed, making it low cost as well as it requires no lithography. The device, using ZnO semiconductor nanoparticles to inject electrons into a polymer which is capable of conducting. The electrons are then used to program the memory by permanently lowering the conductivity of the polymer, producing insulation. This result is far lower power densities than previously recorded, by orders of magnitude. The research team believes that it can make further improvements to the device as they continue to work.

Cambridge scientists develop lower-than-low power WORM memory originally appeared on Engadget on Fri, 03 Sep 2010 18:01:00 EDT. Please see our terms for use of feeds.

Permalink   |  PhysOrg  | Email this | Comments
Tagi: cambridge scientists, power worm, power densities, engadget, orders of magnitude, fri, cambridge university, nanoparticles, lithography, polymer, nbsp, improvements, memory