how to find out accuracy of 500hz

[grittinjames]

hai friends

how we can find out the accuracy of 500hz using c or vb
i am getting a 500hz from a device calibration shuld be done according with the deveation of this clock

with out any hard ware how we can find out resolution must be abouve .000

thanks in advance

 

[taitsoft]

[Deleted]

 

[grittinjames]

windowsXP
i dont want to calibrate pc clock

i want to find how accurate clock which i am giving to pc

 

[taitsoft]

[Deleted]

 

[x_zoli]

[deleted]

 

[echo47]

Measuring 500 Hz to within 0.001 Hz requires an accuracy of 2 ppm (2E-6).
The various oscillators in a computer generally have much poorer accuracy than that.
You need a better instrument.