Zip files are compressed archives containing documents, images, folders, basically any type of files on your computer. We create them to save space and make them more practical for sending via email or file sharing services.
Last time we created an overlay pattern image using Photoshop. Today we will use that image on a website to give the full screen background a pattern overlay.
Apple was until the recent the most valuable company in the world. It's responsible for number of innovations, especially for bringing technology to the masses with its intuitive user experience and great looks.
You don't need Photoshop or some other advanced piece of software to resize a large number of images at once. You can use Microsoft Office Picture Manager which is part of the Office suite.