Recent content by ghackmann

G
OMG SUPER HOT!!!! Wireless game system with over 100+ games

The copyrights aren't anywhere remotely close to expiring. Works made for hire are protected under U.S. copyright for 95 years. Many other countries have shorter copyright terms, but still not anywhere near short enough for NES games to fall into the public domain. If the system really does...
- ghackmann
- Post #15
- Oct 17, 2005
- Forum: Hot Deals and Giveaways
G
Logitech MX 510 Blue $19.99 @ zzf

Dark blue and black. Looks fine with my black Microsoft keyboard.
- ghackmann
- Post #25
- Jun 9, 2005
- Forum: Hot Deals and Giveaways
G
3/3=.9(to the infite)=1?

Combine P2 and P1 to get 9x = 10x - x = 9.9999.... - 0.9999... = 9. I'm not sure if the proof I gave is 100% mathematically-rigorous (to prove this "properly" you need to use limits) but it's much simpler to grasp for people who haven't taken calculus.
- ghackmann
- Post #9
- May 27, 2005
- Forum: Ask a Technical Professional
G
3/3=.9(to the infite)=1?

It's because 0.999... = 1. Proof: P1. x = 0.9999.... P2. 10x = 9.9999.... (P1 x 10) P3. 9x = 9 (P2 - P1) P4. x = 1 (P3 / 9) Q.E.D.
- ghackmann
- Post #4
- May 26, 2005
- Forum: Ask a Technical Professional
G
Which instruction scheme do you see becoming dominant?

I don't have it handy, but one of my textbooks has a table comparing power consumption of common embedded CPUs. The lowest-power x86 chip, an AMD system-on-a-chip whose name escapes me at the moment, still consumed several times more power than an Intel XScale PXA250. It's not exactly a fair...
- ghackmann
- Post #16
- Apr 10, 2005
- Forum: Ask a Technical Professional
G
Time epsilon....

QNX and BeOS are both RTOSes. Both were free downloads for non-commercial use at some point in time, but I don't know if that's still true (especially since Be went under a while back).
- ghackmann
- Post #9
- Mar 21, 2005
- Forum: Ask a Technical Professional
G
AMD multi threading

Not off the top of my head, but I have seen several benchmarks to that effect. To be honest, I'm not sure -- I'm not that familiar with the internals of the Netburst architecture specifically, so I'm just repeating what I've been told by people in the know. I assume they meant pipeline flushing.
- ghackmann
- Post #16
- Mar 13, 2005
- Forum: Ask a Technical Professional
G
AMD multi threading

I think you're misunderstanding how the pipeline affects Hyperthreading. The P4 has a worse branch predictor than the Athlon and a much longer pipeline, so pipeline stalls are much more expensive on the P4 than on the Athlon. The only thing Hyperthreading does for the P4 is finding something...
- ghackmann
- Post #14
- Mar 13, 2005
- Forum: Ask a Technical Professional
G
Hard drive read speeds?

No.
- ghackmann
- Post #2
- Mar 8, 2005
- Forum: Ask a Technical Professional
G
Big Oh.

Since n grows faster than log(n) as n goes to positive infinity, something O(log(n) / n) would actually get faster as n increases. I can't think of any useful algorithm that would exhibit that behavior.
- ghackmann
- Post #4
- Mar 4, 2005
- Forum: Ask a Technical Professional
G
AGP

No they aren't. Different versions of the AGP spec use different voltages, so not all cards are compatible with all motherboards. Fortunately the different AGP revisions are keyed slightly differently, so you can't physically insert a card into a motherboard that would fry it.
- ghackmann
- Post #3
- Mar 3, 2005
- Forum: Ask a Technical Professional
G
Video Codecs

Uncompressed 720p HDTV video would take (1280 x 720 pixels / frame) x (3 bytes / pixel) x (24 frames / s) = 66,355,200 bytes = 63.3 megabytes per second even before you started adding audio. If your movie was completely silent, you'd fit around 15 minutes of video on a double-layer Blu-ray...
- ghackmann
- Post #4
- Feb 22, 2005
- Forum: Ask a Technical Professional
G
Another free energy hoax?

Let's see: "Physicist Bruce DePalma has a 100 kilowatt generator, which he invented, sitting in his garage. It could power his whole house, but if he turns it on, the government may confiscate it." It can't be produced because of a conspiracy. Strike 1. "His N machine, as it is called...
- ghackmann
- Post #2
- Feb 22, 2005
- Forum: Ask a Technical Professional
G
The New Cell Processor

It's also untrue, except for a few special cases (like the Dreamcast and the Xbox). Nintendo in particular has repeatedly refuted that their consoles are sold at a loss. Keep in mind that Sony owns the equipment necessary to fabricate most -- if not all -- of their consoles' components...
- ghackmann
- Post #23
- Feb 15, 2005
- Forum: Ask a Technical Professional
G
Improving the bubblesort.

That's not O(n). Worst case, somebody hands your algorithm an n-element array with all the elements already sorted in ascending order. Your algorithm will have to do a sort on the x-element array every step through the n-element array. That's O(nx log x) if you use a decent sorting algorithm...
- ghackmann
- Post #20
- Feb 13, 2005
- Forum: Ask a Technical Professional

RESOURCES

Top Bottom