Step 1
Open a document 400px wide and 300px high. Make the background a dark color. Select the Polygonal Marquee Tool and make a shape like the one in the picture. Fill it in with white.
Step 2
Now make another layer and make something similar. Vary it so it doesn't look completely the same. I tried making it thinner.
Step 3
Now make another layer and add some more tech shapes. Place them anywhere. I did mine near the top.
Step 4
Next Create a new layer and add some scanlines. I used the diagonal scanlines. The method for making these can be found in another tutorial on the site. After you make the scanlines, set the opacity to 20%.
Step 5
Make a new layer and add some more shapes. This time try to make it unique by making it vertical. Finally add whatever you want to finalize it.
Final Result:
