Computing desk | ||
---|---|---|
< October 9 | << Sep | October | Nov >> | October 11 > |
Welcome to the Wikipedia Computing Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
Are there free tools that will graphically show the pitch of one's voice to allow a singer to know where he/she is relative to the note he/she is trying to hit? —Preceding unsigned comment added by 72.94.148.134 (talk) 03:28, 10 October 2009 (UTC)
I have a number of c. 1975 educational filmstrips I would like to transfer to DVD. Currently I'm running them through a scanner turning each frame into an image file, copying the soundtrack to mp3 via a modified turntable, then combining the sound and images with iMovie. As you might imagine, this takes a LONG time. Is there an easier way? Horselover Frost (talk) 04:01, 10 October 2009 (UTC)
Question 1: Where can I find an estimation of historical data regarding the internet's size and growth? The internet article here on Wiki doesn't go into details as far as I can tell...
Question 2: Excuse my stupidity, but why is the transition from IPv4 to IPv6 so difficult? Isn't it just changing ONE datapoint - the length of the IP data? Why would the fundamental hardware of the internet need to be changed other than extending the length & characters of address strings?
Thank you.218.25.32.210 (talk) 08:12, 10 October 2009 (UTC)
In brief: There's more to IPv6 than just longer addresses. But just that alone explains why ISPs sometimes need to deploy new hardware to support it: the addresses are four times as long, meaning that the routing tables occupy more memory and require more processing power to manage. So an older router can't always handle as big of a routing table, or handle as many packets per second, of IPv6 as it can of IPv4.
In some cases, routers and firewalls were built with ASICs (specialized chips) built to handle IPv4 traffic, but handle other protocols on the main CPU. This design made sense when almost all of the traffic on a network was IPv4, with a small amount of other protocols such as IPX or AppleTalk. But when you try to handle traffic that is majority non-IPv4 with such hardware, it bogs down because it can't use the ASIC to accelerate processing ... and the CPU isn't fast enough. --FOo (talk) 20:32, 10 October 2009 (UTC)
My third year project at university is programming a graphical based designer. The program will have boxes, boxes within boxes, lines connecting them, highlighting, drag/drop functionality, right click menus, etc. etc. Very similar to making UML diagram editors.
I don't know where to start technology wise. Which language should I use? I'd like to use an OO language to make things easier. I'm leaning towards Java or C#. Are there advanced 2d graphics packages/frameworks out there that have this kind of functioanlity already built in? Will I be doing low(ish)-level graphics progamming to make the shapes I want? I just need some ideas of where to start really. 94.193.253.249 (talk) 12:37, 10 October 2009 (UTC)
I was suggested on the OpenCBM mailing list to see what happens if I attach my 1541 through an XM1541 cable to my parallel port replicator and power up the system, and see the output in /var/log/messages. Well, what happened is this: The 1541 starts up normally. When the Linux kernel has loaded, the access led lits up, and stays lit up the entire time. Issuing the command "cbmctrl reset
" has no effect. Here is what /var/log/messages has to say:
Oct 8 21:22:55 localhost kernel: cbm_init: using passive (XM1541) cable (auto), irq 7 Oct 8 21:22:55 localhost kernel: cbm: resetting devices Oct 8 21:22:55 localhost kernel: cbm: waiting for free bus... Oct 8 21:22:58 localhost kernel: Quiting because of timeoutcbm: resetting devices Oct 8 21:22:58 localhost kernel: cbm: waiting for free bus...
I take it the system has recognised the 1541 through tbe XM1541 cable, but can't actually access it, because it has no free bus, or something. My knowledge about PCI peripheral technology stops at "plug the device in the PCI slot, and plug the cable in its socket". Anything related to bus or IRQ configurations is outside my scope. Can anyone help me here? JIP | Talk 22:48, 10 October 2009 (UTC)
My setup is the internet goes right to a router, and two PCs, and whatever other wireless device, get their internet wirelessly. How would I go about sharing files from one PC to another? I think it would be easier if one computer is directly attached to the router, but since I don't have that setup, wondering how to get around it. Here is a link to an image I made in case it is not too clear, link. Thanks! Infiniteuniverse (talk) 22:55, 10 October 2009 (UTC)