Blending Options-Gradient Overlay

Create Futuristic Computer Wallpaper in Photoshop CS

Gradient?s parameters:

Create Futuristic Computer Wallpaper in Photoshop CS

Select the previous instrument after that and be ready to create another layer,
that one from the image below:

Create Futuristic Computer Wallpaper in Photoshop CS

Create Futuristic Computer Wallpaper in Photoshop CS

Blending Options-Gradient Overlay

Create Futuristic Computer Wallpaper in Photoshop CS