Abstract: A method for accessing files in a computing device includes presetting authorized electronic devices. When an electronic device is detected to be within a range of a wireless device of the computing device and an access request is received from the electronic device, the computing device determines whether the electronic device is authorized. When the electronic device is authorized, a user of the electronic device is allowed to access the computing device. When the electronic device is not authorized, the user is denied access to the computing device.

Abstract: A method for validating user identification includes the steps of: guiding a user to input a user ID through a login interface; comparing the user ID with original identifications stored in a database (40) and determining whether the user ID matches one of the original identifications; sending validation information to a mobile phone number corresponding to the original identification; updating an original password, corresponding to the original identification, according to the validation information; running a validation program, installed in a mobile phone having the mobile phone number, to decrypt the validation information, and generating a validation result as a login password; inputting the login password through the login interface, and transmitting the inputted login password to an application server (30); and determining whether the inputted login password is the same as the updated password. A system for validating user identification is also provided.

Abstract: A method for simulating a touch panel using a keyboard is provided. The method includes sensing a pattern of keys pressed either by sliding keystrokes or by standard keystrokes. Using the pattern of keys, a corresponding function is executed to activate one or more commands on an electronic device.