Take out the drawer and cut the front off.
Line up the cabinet latches and attach them to the inside of the drawer and the inside of the drawer front.
Drill a hole in the drawer large enough for the cord and cord plug to pass through. (My drawer has rails on the bottom so I just drilled into the drawer bottom and passed the cord under the drawer. If your drawer has no rails under it, drill though both the back of the drawer wall and the back of the desk.)
When you need to use your computer just pull the drawer out and pop off the front.
When you're through with your computer, just pop the drawer front back on and push the drawer back in.