you may read many article in web about how to make a page
not to be cached using meta tags like that in the head
section -

code behind file codes -

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

the following javascript codes will help you find
out the browser details by some javascript functions

A digital photo is a multidimensional array containing numbers
that indicates the color of points in the photo/image.so we could
do what we want with this multidimensional array like we can
make any amendments in the array by entering it into math functions,
also we can encrypt the image.in this article i am gonna show you
how to place a background behind a photo using a method.

Sql server knows many data types.it's worth our
while to know most common types -

using SMO classes one can backup a sql server database
in .bak extension.It's a programming approach to backup
database.there are other ways but using SMO classes it
is efficient and error free.

we know different file types like html,jpeg,gif,pdf,
doc,etc handled by different browsers like IE,
firefox,opera,etc.the situation can come when the
browser can't handle the file type,it will ask
to save or open that file.