Slashdot is powered by your submissions, so send in your scoop


Forgot your password?

Comment Re:Athlon X4 845 why cut pci-e lanes? amd is losin (Score 1) 80

A 32bit OS can address 4GB of memory. Hardware devices overlay memory addresses to allow I/O with the OS, and something like a dedicated graphics card will have its own memory that also takes up addressing space. The hardware wasn't just a graphics card but everything, serial/parallel ports, PCI controller and slots, IDE controller, etc.

There was a fix to allow addressing more than 4GB with 32bit hardware with something called Physical Address Extension (PAE). This was active in Microsoft's server OSes, and it was available in the initial release of consumer XP; however, it was removed in either SP1 or SP2 (can't remember which). The theory was that with servers only certain hardware was ran and those drivers would be certain to support PAE. With a consumer OS lots of random hardware could be ran and a driver that didn't support PAE would bomb out and crash the system if trying to address an address that was outside the 4GB cap.

So before PAE was included there was a hard cap of 4GB of addressable memory with a 32bit CPU that no OS could work around.

The hardware (PCI, IDE, etc) could support any addresses as long as the OS and drivers were supported like PAE on a 32bit OS, or a 64bit OS.

But in the end, you could have 4GB of RAM on a system running Windows XP. But you'd only have 3.25GB of usable memory due to the hardware I/O mapping.

Comment Re:Athlon X4 845 why cut pci-e lanes? amd is losin (Score 1) 80

It wasn't just being able to run more than 4GB of RAM. It was being able to "use" all 4GB of your RAM. You used to be capped around 3.25GB due to hardware I/O mapping. If you had more than one video card at the time you could have under 3GB of RAM available.

Comment Re: Firewall stick (Score 0) 90

It's not Intel or a stick, but PC Engine has a board that uses AMD's jaguar CPU, and had three Intel gigabit nice, mSata, supports SD booting, and had two mini pcie slots so you can add WiFi.

It's over kill for what your asking for, it's still small enough to be portable. At the board is under $150

Comment Re:Why Not? (Score 1) 300

When you register you get a single tail for all of your drone. The registration form isn't online yet, but I haven't heard anything about registering each one that have if you have multiples.

Regarding searching by the tail. Yes, you need the actual tail. But click back one page to the master search list. You have the ability to search by state and county. Every plane with their tail, and addresses of the owners is listed for that county. I wouldn't put it past the FAA to duplicating this exact search for the new list.

Comment Re:It's time to let the HDD's go. (Score 1) 272

And your house can catch fire and destroy your HDD, or you could have a head crash that takes out a bunch of data.

If your computer has information you don't want to lose, you have to back it up. You should always have three copies in two different physical locations of data you don't want to lose. If all three were SSD it's very unlikely all of the drives would fail at the same time.

I've had HDDs fail in the past where they then failed to be recognized by the BIOS. I might have been able to swap in a new controller, or spend several thousand dollars to have a data recovery service so an electron microscope on it. Or I just do what I did, put in a new drive and restore from the backup. Depending on being able to read data off a failed HDD is never a plan/solution.

Comment Re:It's time to let the HDD's go. (Score 1) 272

I just bought a 250GB drive for $55 on Black Friday so expect this to happen by the end of next year.

Even with that pricing being common, I still think most store bought PCs will continue to using traditional HDDs. Self builds, sure go SSD, but manufactures will try to cut every corner so even if they are a penny cheaper HDDs will be around for a long time.

That SSD I bought is going into a new Laptop. While shopping the vast majority of them have come at with a sub 1080p display. My 2.5 year old smart phone has a 1080p, and there are new models have have 4K displays. So why are laptop using a bastard resolution of 1365x768 in 2015?

Comment Re:IBM doing what is does best, embrace and extend (Score 2) 27

Read the article, IBM's solution also uses a credentials wallet.

SQRL uses QR codes so the user's wallet can be on a mobile device, and the user could log into a public machine without exposing a repeatable login method. SQRL also allows for a SQRL:// link on the QR code so a wallet program on the local machine, or the phone itself can still authenticate without using the QR code.

Where these differ is that SQRL is made to replace the username and password part of logging in. It also creates a unique identity for each site so the only way to map SQRL accounts between sites would be through information the user gives to the site such as an email address.

IBM's solution appears to have a 3rd party signer like a government create a certificate with identity information which is then used in the authentication process.

Slashdot Top Deals

"Hey Ivan, check your six." -- Sidewinder missile jacket patch, showing a Sidewinder driving up the tail of a Russian Su-27