Archive for the ‘Mobile’ Category

USB 3.0 and Flash Drives

Friday, June 5th, 2009

Today, I remembered some ill-fated folder-based scheme I had made when I was 14 or so. I made a bunch of folders, named through 0-9, and then copied those into themselves five levels deep. I also put a little “this is a dead end” word document at the end of each of those. In the end, it took up a couple hundred megabytes and slowed the system down, so my older brother deleted it. It’s kind of embarrassing, because I could have used .txt files to make them smaller, and the entire thing was a bit cumbersome and didn’t quite work the way I wanted it to.

Anyway, I thought about the final size of that, today, and and realized that we were working from an 8GB hard disk. When I’m managing my files on my 8GB flash drive, today, I’m actually working with the same amount of space — more, because I don’t have an operating system on there to worry about. It puts things into perspective.

Also, I want one of these. An external USB/e-SATA SSD. 32GB is only $156, and it would allow me transfer speeds of 90MB/50MB, which is on par with a hard-drive. I could literally put a copy of windows on there, along with all the things I need to work, and then carry it around with me. Just attach it to someone’s computer, boot into my hard-drive instead of theirs, and away I go!
My current USB flash drive works at about 16MB/s read and 8MB/s write. The maximum for USB is about 30MB/s. The theoretical maximum is a lot higher, but it’s unlikely we’ll anything more than low 30s.

USB 3.0 is coming out very soon (the technology should be seen later this year, with widespread support sometime in 2011). This would allow devices to reach at least four hundred megabytes per second, which would mean you could run a hard-drive straight from USB.
By that time, though, SSDs will be about $1/GB, and would run at least twice as fast as a hard-drive. You could replace your hard-drive for only a few hundred dollars (or maybe just a hundred, for something like 128GB).
We’ll see what the future has in store.

4G Mobile Browsing

Wednesday, March 25th, 2009

…I just hit 800KB/s with my mobile internet. I’m pretty sure that’s the fastest I’ve ever downloaded.
At this point, I don’t suppose there’s really any reason to get wired internet! I can’t imagine what HSPA+ would be like; It’s supposed to be several times faster. I’ll have to look that up a bit more.

“In February 2007, NTT DoCoMo completed a trial in which they reached a maximum packet transmission rate of approximately 5 Gbit/s in the downlink with 12×12 MIMO using a 100MHz frequency bandwidth while moving at 10 km/h…”
I’m reading up on 4G, and you can basically imagine a 100+ mbps network spanning whole cities. I suppose 2012 will mark a turning point in our communication systems? “Oh, man, you’re still on dial-up?” will turn into “Oh man, you’re still using cables?”

But yeah, you only really need a true 12Mbps connection to stream HD movies. Assuming you’re halfway out of the range and you get a tenth what you should, the 100Mbps (those are always theoretical maximums) network would be just fine for that. Next, they could outfit cellular devices with those tiny little 16GB chips that are the size of a fingernail. Really, I don’t know why they don’t have more than 32MB in phones, nowadays. There’s literally no reason to have less than a gig, which would cost maybe $5 extra on top of the phone’s $100-$600.

Also, I’m not sure I mentioned, but I was looking at Future Shop, and that 2GB U3 drive I was trying to get rid of actually rose in price by a dollar since September. These things are supposed to halve every half a year!