Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!


Forgot your password?

Comment Re:Huh? What? (Score 2) 506

That shortcut opens a new Incognito window in Chrome, also called "Private browsing" in Firefox.

Also very useful. Incognito windows lets me can log into my gmail account without having to log out of Youtube ... and when the incognito windows are closed, I am automatically logged out of gmail.

Comment Re:They don't need 3 Surfaces, they need an xTab (Score 1) 266

I agree with most of your points, but it is a bit late now...

If I had been Microsoft, I would have leveraged the "Metro" name instead: Windows Phone -> Metro Phone, Windows RT -> Metro Tablet, but let full-featured (x86) tablets remain Windows tablets.
Then, instead of letting the desktop be an "app", expand on the tiling windows of Windows 7 and place Metro apps in tiled windows on the desktop. Also, add multiple workspaces to Windows desktop -- it is about effing time.

Comment Re:qualcomm is right (Score 1) 526

Sorry, but multicore does not scale that well.
As soon as one core needs data that is not in the cache, it stalls. A stalled core is a core that does not run.
The best utilization of multicore is if you are using all cores on the same problem, and the same data. Making your code scale to multiple cores can be quite tricky. I found that [url=http://channel9.msdn.com/Events/Build/2013/4-329]this talk at Microsoft Build 2013[/url] explains quite well what you need to do.

Comment Re:How innovative! (Score 1) 143

The X41 had only a swiveling screen, pen and a couple of physical buttons on top. It did not come apart into two parts.

The two laptops serve different users. You could say that the X41 is primarily a laptop and a tablet secondarily, while the Helix is primarily a tablet and a laptop secondarily.
The tablet is easier to carry, and might therefore be preferable if you are going away/travelling and you don't think that you will be typing much. The X41 is when you do mostly traditional computing and you need tablet functionality only sparingly.

The X41 had a dock also, for desktop use. I would like to see a (vertical) desktop dock for the Helix tablet so that I can use it with a desktop screen and keyboard, and without having to connect the keyboard part first.

Comment Pills (Score 1) 31

Yet, practically all types of medicinal pills still contain nanoparticles of Titanium Dioxide, used only for colouring the pills white.
It is not like you have the option of choosing another brand that does not have nanoparticles. Often the prescribed medicine is the only one available with the active ingredient ... or all the brands contain TiO2.
TiO2 is also in many brands of sunscreen, but in this case it is much easier to choose another brand.

Comment Re:You're testing wrong (Score 1) 177

Precisely. I mentioned accounting for false positives, and batkiwi's algorithm does not do that. In a textbook example, you should have a delay on rising edge and "stickiness" on the falling edge, but sometimes you can take shortcuts.

I have studied several firmwares for actual computer keyboards, which all work as I described. You may want to trigger directly on the rising edge if you have another type of application where your scanning rate is quite low.

Comment Re:You're testing wrong (Score 1) 177

The scanning frequency is not that significant. The response time is more limited by something called "debouncing".

When a key switch is pressed, it does not actually change state from open to closed in a perfect way. Instead, it often "bounces" between open and closed states for a little while until it settles. Another issue is that short spurious positives may be caused by static electricity. Keyboard microcontrollers will therefore have to delay reporting each key press until it is sure that the key reports a steady state.
Debouncing is almost always implemented as a counter or a buffer with a delay - and that delay is fixed. The delay is chosen based on the characteristics of the particular keyboard switch.

By increasing the scanning rate, the microcontroller will only gather more samples for debouncing each key. As you increase the scanning rate, your response time will only approach the debouncing delay; It will never surpass it.

Comment Why do we still count the diagonal? (Score 3, Informative) 217

The diagonal means something different depending on which aspect the screen has. We have 16:9, 16:10, 3:2 (Chromebok pixel) and 4:3, and now 2.37:1 and the angle of the diagonal is different on all of them.
How about using a metric that does not change, such as .. maybe the height of the screen.
This "29 inch screen" is only as large on the vertical as a 23 inch diagonal 16:9 screen. Both are 11" high.

Slashdot Top Deals

Have you reconsidered a computer career?