PhotoShop is currently in the CS6 version. Its appearance is not very different from the previous CS. 
PhotoShop CS4
PhotoShop CS5
PhotoShop CS6
The PhotoShop interface has not changed much since its origin. In the upper part of the program are the different menus, which when clicked on each of them will be displayed showing the different options they present. 
Menu options in PhotoShop
In the lower part of the menu you can see the options of the toolbar, which will show precisely the options of the tool that is selected at that moment. For example: 
1. Click on the TEXT tool
2. You can see the options of the tool TEXT
The triangle that you see in the lower right part of the tool, is reporting that in turn contains a family of related tools. 
In turn, the toolbox can be placed in the two-column mode, by clicking on the arrow at the top of the toolbar: 
On the right side of the interface you can see different panels that can be enabled independently, which will allow you to work with the images to be processed. 
To start working with an image you just have to go to the FILE menu and select the OPEN option. There you can start looking for the image with which you want to work. 
Once the photograph is opened, it is located as follows: 
At the top you can see a new tab that provides the basic information of the photograph: 
One of the basic tools to start working the image, is called ZOOM which will allow you to zoom in or out on it: 
Before the ZOOM
After the ZOOM
The hand tool 
, it allows to navigate on the image: 
Before applying the hand
After applying the hand
Now we will learn how to change the name of the photographs. To change the name of a single photo just click on the name of the image and write the new name. On the other hand, if you want to change the name to a certain number of photographs, the steps to follow are the following: First you must enter Bridge, which is an application that is included in PhotoShop, there you have to look for the photographs to which you want to change the name. Once found, you have to select a batch of images, in the example you select 3 photographs: 
Afterwards, the right button is clicked on the selection and the option is selected: Change the batch name . 
It will be appreciated that a dialog box will appear where you can change certain parameters: 
This way you can see the name of the current file and the new file name and the number of files that will be processed : http://farm9.staticflickr.com/8136/8882649305_43e63cca4f_o.jpg
In addition to the name of the file, you can modify the date on which the photographs were taken and the format that will be presented.