Hi Arif,

If you have the means and/or can afford, go for mixed signal scopes. I would suggest Agilent brand (formerly called HP) 546xx series. It is very useful for microcontroller / digital work apart from using it as normal scope. I will not go into details, as it is available from Agilent site.

See for yourself and you wont be disappointed.

PS

I would suggest to future buyers to look at these scopes.