Keyboard Definition and 71 Threads

Homework Statement In certain ranges of a piano keyboard, more than one string is tuned to the same note to provide greater intensity. For example, the note at 162 Hz has two strings at this pitch. If one string slips from its normal tension of 645 N to 516 N, what beat frequency will be...

Hi guys an gals Do any of you know an elegant way to take ascii values from the com port and interpret them as keyboard input in another program? If I may be more clear, we've gotten it right to read in ascii from a microprocessor into MATLAB but we would like to read in values which are...

Hi Knowing that i live in France (40 USD to import from USA which is expensive) I am currently looking for : 1) A Laser mouse (around 25 - 50 euros) is this one good : Mouse : http://www.amazon.com/dp/B000U75V02/?tag=pfamazon01-20 Mouse pad ...

Hello, I have a Dell D620 laptop and recently I have been having trouble with the input the tells the cursor where to go. I have the standard finger-pad that I use to move the cursor but there is also a little blue rubber thing between the "h" and the "g" on my keyboard that can also move the...

i have a english (uk) keyboard but my computer has the keyboard mapping set to english (us). does anyone know how i can change it to english (uk)?

Full-size keyboards take too much space when you're on a small desk. But a minimal keyboard that I got turned out to be cap, I ended up making more typos and was unable to type fast. So does anyone know of a decent small-size keyboard? With standard-depth, decent keys like those of a normal...

[SOLVED] C- programming: Reading filename from keyboard Hi! I am trying to write a small program for open a file by entering filename with keyboard, but it does not work. Why? int main(){ FILE *fp; printf("Give filename "); char str[100]...

I have a desktop that I was foced to run a system recovery on. After the recovery was completed, pressing keys would do nothing. The mouse works, so I can navigate around, but I cannot type anything. Anyone know where I might start? I have two keyboards (USB and serial port) and neither are...

Here is the question: What I did in my attempt solve this is I substituted a lot of variables into one equation, but I still wasn't able to solve the problem. My equation was Farad = C/V = (EoA)^2k/Qd^2. I feel like I just went in a complete circle. Anyone know where I went wrong, or a...

Anyone know if there is a mathematical keyboard layout for all the word programs(word,notepad,MSword)? Similar to the other language keyboard layouts(IMEs?) like the chinese one for bopomofo?

Ok, Lisa where did you get the keyboard with the special characters ? come to think of it mine must be american as i have a $ sign but not one for a pound, and my at is " :confused:

can you find on your keyboard, going in any direction with adjoining keys ?

Hi I have a toshiba laptop, xp, and have a problem with the keyboard freezing up. When this happens there seems to be no response to any keyboard or mouse command. The only fix I have found is to shut the computer off and then reboot, after which everything seems fine until the next time...

You know how people who nmakes games connect games played on computer by computer kyboard to game pad buttons I mean it be keybord, but now plug in game pad, how the buttons function like keybord ? what is inside to make it work ?

http://www.engadget.com/entry/1234000740050460/ very cool

"e", "t", "u", backspace and delete all don't work. Who knows what else. (I wrote this message by copying letters from a web site)

This is a thread for two ideas I came up with while discussing the parallel keyboard. The first is tactile feedback on each key, perhaps by ridges on the keys that point back to the center of the keyboard, so that the subconscious mind has a better sense of where each finger is at any time...

All current keyboards are sequential. Even when you press more than one key at a time, you must press one of those keys first--shift-e is not the same as e-shift. It strikes me that this is inefficient. We are capable of pressing 10 keys at a time. What if a keyboard were made so that many...

Hi all, sorry if this is a little off the normal topic. I was wondering if anyone knew how to rig up a casio keyboard, that has no midi, so that it can send midi data? I have a little bit of skill with electronics, some free time and a casio that I don't mind wrecking. If anyone knows please...

Hey guys; I was driving the other night, and I was thinking about some programs I used to write many years ago in Pascal (like ~ 11-12 years ago in TurboPascal 7.0, or was it 6.0?) in which I used to catch the keyboard scan codes. I realized that I neve caught a keyboard scan code for a...

January of 2002 I started taking lessons. I play using the new Casio WK 3000. Really a professional board, fabulous sounds. I read music quite well. Just do it as a hobby from 1 to 3 hours per day. What about you all? Oh yes, I play all types of music. I especially like Elton John "I...