Step #1
Draw rectangle .
Step #2
Draw rectangles .
Step #3
Draw rectangle ..
Step #4
Draw base shape as shown .
Step #5
Draw processor shape as shown .
Step #6
Draw rectangle mouse pad & Enhance shape as shown.
Step #7
Draw mouse shape as shown & Draw button shape as shown.
Step #8
Draw keyboard's button shape as shown .
Step #9
Draw wire shape as shown .
Step #10
Make necessary improvements to finish.