The Basics

Actually , I'm a total beginner if i want to talk about Photoshop.To put it in simple way , my knowledge about photoshop is nearly 0% and basically if there is a book "Learning Adobe Photoshop for Dummies" seriously , i might buy that book. Anyway , let's get started

Since i'm a beginner, so i think i'll explain the basic things also ..

First,Open a blank page so that you can try out some of Photoshop’s tools.Then, enter a title : New Page or leave it untitled. Then for Image Size ... If the paper or screen size you need is not listed,choose Custom and enter the dimensions.   For now, choose Default Photoshop Size. This gives you a seven-by-five inch work area, a convenient size for most projects. 

-          If you have an image copied on the clipboard, when you open a new page, the dialog box will automatically show the size of the copied image. (Exp: Try print Screen).

        Resolution refers to the number of dots-of-ink-per-inch (if you’re printing) or pixels-per-inch (if you’re looking at the computer screen).  It’s important because the resolution of the image determines the quality.   Higher resolution gives you a better quality image but uses more memory. Most images that you see in print have a resolution of 150 dpi to 300 dpi-or dots-per-inch. Your computer’s monitor has a dpi of 72. Therefore you always set the resolution depending on what your output will be. For now, keep the resolution at 72 dpi because we’re just looking at the screen. For the same reason, set the Mode to RGB Color. RGB color is the kind of color that monitors display. Click the button to set the page contents to White. This gives you a white “canvas” to paint on.