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Comment: Re:The GNU ecosystem is just cost effective. (Score 2) 128

by james_a_craig (#43579875) Attached to: Ask Slashdot: Best OSS Embedded Development Platform

Basically you're not thinking small enough.

The minimum cost on ARM-based processors is somewhere around the $2 mark. I can get PICs for down to about $0.30. There's plenty of products where that sort of difference is significant - and easily high enough volume to drown any development time cost difference.

+ - Ask Slashdot: Is ZFS dead?

Submitted by manuelmagic
manuelmagic (1961466) writes "When I heard of ZFS for the first time in 2009 I was astonished about the idea: a new and innovative file system that could finally take the place of the old HFS+ used by Mac OS X, the platform I was using at the time. Then Apple silently dropped the announced support in Mac OS X Snow Leopard Server and ZFS never really make it to the big public. I don't know if it's about the Oracle License, the slow development, if ZFS has already lost the features-performances war with Btrfs or something else but I'm curious to know if we will ever see it for real on our linux or BSD boxes alongside ext4 or Btrfs."

Comment: Re:Last IP! (Score 1) 460

by james_a_craig (#34401034) Attached to: Free IPv4 Pool Now Down To Seven<nobr> <wbr></nobr>/8s

It's a policy thing. A lot of routers are configured not to accept announcements for smaller than a /24 - too many of those routes eat a lot of RAM. The protocols all support all prefix lengths, but that's not to say that people will actually permit them on real networks - especially the big core routers.

Wireless Networking

Cellphone Carriers Try To Control Signal Boosters 231

Posted by CmdrTaco
from the more-bars-please dept.
digitaldc writes "[Repeaters], which cost from $250 to $1,000, depending on how much they increase a signal, work by first capturing cell signals through an external antenna, ideally affixed to the roof of a dwelling. A coaxial cable then transmits the signal inside the house to an amplifier and internal antenna, which strengthen and retransmit it to cellphones... In March, CTIA-The Wireless Association, which represents cellular service providers, filed a complaint with the Federal Communications Commission demanding stricter regulation of signal boosters."

Comment: Re:2GB Ram? (Score 1) 205

by james_a_craig (#33554130) Attached to: India's $35 7-Inch Android Tablet To Hit In January

Within any one memory device the timings would still be constant, though - a single CPU can access all the data within any one device in constant time across that device.

That constant will be faster for local memory than for another CPU's RAM, but within any one RAM device it's still constant.

Comment: Re:2GB Ram? (Score 2, Insightful) 205

by james_a_craig (#33552574) Attached to: India's $35 7-Inch Android Tablet To Hit In January

Actually, no, it's exactly the functionally descriptive term I'm challenging.

The normal definition is a memory with flat access times - i.e. it doesn't matter what part of the memory you access, you can do it equally quickly. This doesn't apply for things like tapes or HDDs, which are respectively either sequential or semi-sequential (sequential per cylinder) access.

In the case of flash the time to perform a write is strongly dependent on the preexisting erase state of the block - if it's cleared already, it's much faster than if you need to clear it. That means that the time to access a given block of memory isn't constant (or even nearly so) so it's not really random-access.

(If you want to be really nit-picky, it's random access on reads but not on writes. It can even end up being more complicated since you can have a read queued behind a erase on some flash devices)

Comment: Re:2GB Ram? (Score 5, Informative) 205

by james_a_craig (#33552052) Attached to: India's $35 7-Inch Android Tablet To Hit In January

Actually, no it's not. Flash can't be written to randomly; it needs a block erase cycle first (and generally a block is fairly large; we're not talking one or two bytes here). Technically you can zero bits without an erase, but not set them to 1 (erasing sets everything to 1).

This is why there's a distinction between EEPROM, FLASH, and RAM.

Windows

+ - Windows 8: 2012 Release Date?-> 1

Submitted by msftkitchen
msftkitchen (1684916) writes "Contained in a road map slide, Windows 8 Server is noted to release sometime around 2012. This would put Microsoft on a 3-year release schedule with major releases, thus making Windows 7 merely an updated release. What does this mean for what's in store for Windows 8? Perhaps we'll find out in 2012. /insert obligatory 2012 reference here."
Link to Original Source
Graphics

+ - Nvidia's DX11 GF100 graphics processor detailed->

Submitted by J. Dzhugashvili
J. Dzhugashvili (1007075) writes "While it's played up the general-purpose computing prowess of its next-gen GPU architecture, Nvidia has talked little about Fermi's graphics capabilities—so much so that some accuse Nvidia of turning its back on PC gaming. Not so, says The Tech Report in a detailed architectural overview of GF100, the first Fermi-based consumer graphics processor. Alongside a wealth of technical information, the article includes enlightening estimates and direct comparisons with AMD's Radeon HD 5870. The GF100 will be up to twice as fast as the GeForce GTX 285, the author reckons, but the gap with the Radeon HD 5870 should be "a bit more slender." Still, Nvidia may have the fastest consumer GPU ever on its hands—and far from forsaking games, Fermi has been built as a graphics processor first and foremost."
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Anime

+ - Can Ubuntu reach over 16,000 anime lovers in April->

Submitted by
shadowmage13
shadowmage13 writes "After months of planning, i am happy to finally announce that the Ubuntu Massachusetts Local Community Team will be preparing a booth at the upcoming 2010 Anime Boston convention. We need support from the community to secure a booth and print materials including copies of the Ubunchu! manga. I really believe the Anime fandom is a perfect match for Ubuntu, and they are by nature very much in line with open source and remix culture."
Link to Original Source
Security

+ - Major IE8 flaw makes 'safe' sites unsafe->

Submitted by
intrudere
intrudere writes "http://www.theregister.co.uk/2009/11/20/internet_explorer_security_flaw/
Exclusive The latest version of Microsoft's Internet Explorer browser contains a bug that can enable serious security attacks against websites that are otherwise safe.

The flaw in IE 8 can be exploited to introduce XSS, or cross-site scripting, errors on webpages that are otherwise safe, according to two Register sources, who discussed the bug on the condition they not be identified. Microsoft was notified of the vulnerability a few months ago, they said."

Link to Original Source

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