Computer Keyboard PIN Lock

Computer Keyboard PIN Lock
Computer keyboard keys - Screen Lock.
The application was created specifically for fans of computers. A collection of photographs which depict computers, laptops, keys. The application is simple and useful at the same time. Easy and simple use makes it possible to change the background image and how the phone lock.
Keyboard - set arranged in a certain order key device used for data entry and editing, and managing the execution of certain operations.
Key element here is a keyboard, which generated code by pressing the corresponding mark or initiated some action.
Keyboards are used in a variety of devices - printing machines, calculators, mobile phones, and is one of the components of the computer.
Alphanumeric keypad used to manage the technical and mechanical devices (typewriter, computer, calculator, cash register, phone button). Each key corresponds to one or more specific characters. May increase the number of actions that are performed using keyboard shortcuts. In this type keyboards keys are accompanied by labels with symbols or actions that meet pressing.