Recent content by frenzal_dude

Hi, how can I debug the C# command Console.WriteLine("text"); so I can see what windows operating system code gets called? Is it possible to go to lower levels? Ie. see what code gets called to make the pixels light up on your monitor to display the text? I know that's really low level, and...

Isn't the reason they added an extra bit so they could use parity checking? Not just so it would leave "room for growth" ?

you mentioned registers, cache, and RAM, but RAM is just a stack of registers, and I think a cache would physically be made up of registers too right?

When you say stored in memory, doesn't that mean it will be stored in a physical register? Because memory is made up of registers?

I understand that in 32 bit windows, the registers are 32 bits long. Does this mean that when you create an Int32 variable in C#, the actual number is physically stored on a 32bit register?

a lot of those lengths are powers of 2 (2^5=32, 2^6=64 etc) what is the reason for that, just a coincidence?

In C#, why did they decide to use 32 bits for storing integers? I understand that 32 = 2^5, but why is this significant? Why not have 30 or whatever number of bits? If the answer is that the registers in 32 bit operating systems are 32 bits long, then why did they decide to have 32 bit registers?

I don't understand how parity error detection is any use since if there are an even number of mistakes, the errors won't be detected. If there's more to it than this please let me know.

Why are blue leds so much more expensive than any other colour leds? I could buy a pack of 100 red leds for about $10, and 1 blue led for $4, in Sydney Australia. Does it have anything to do with the frequency of blue light being higher than green, red and yellow?

I know that one character is one byte, and that is 7 bits + 1 parity bit. Is it made up of 7 bits because on an LED display the figure 8 is made up of 7 segments?

You're completely right, the T there is actually frequency which is 1/T, I should have used a different letter other than T (which ofcourse usually means period).

What does it mean if a leased telephone line has a bandwidth of 3kHz? Does it mean any signals traveling alone that line must have frequency components less than or equal to 3kHz? Or does it mean that all the signals' frequency components (assuming time multiplexed) must add up to be less than...

Thanks for the reply, I tried it with that formula, however I still don't get the same answer as the textbook. Here's my working out: b(t)=a(t)+a(t)cos(2\pi tT)-a(t)jsin(2\pi tT) \therefore |b(t)|=\sqrt{[a(t)+a(t)cos(2\pi tT)]^{2}+[a(t)sin(2\pi tT)]^{2}} =\sqrt{a^{2}(t)+2a(t)cos(2\pi...

I need to find the absolute value of b(t): b(t)=a(t)[1+e^{-j2\pi tT}] Here is the answer in the textbook: \therefore \left | b(t) \right |=\left | a(t) \right |\sqrt{2(1+cos(2\pi tT)}2|cos(\pi tT)| However I got a different answer when working it out, and can't understand how they got...

It depends on what sort of engineering, mechanical engineering you'd definitely need to be good at physics. Software eng/computersystems/telecomms etc, it's not so important. Other than the one physics subject I had in first year, the only 'physics' type of stuff I need in my telecommunications...