System and method for updating a sign-on logo image file in a computer

摘要

A system for updating a sign-on logo image file in a computer includes: a storage medium ( 7 ) for storing image files; application software ( 1 ) for loading a selected image file, converting the selected image file into a designated format image file, and compressing the designated format image file into a corresponding sign-on logo image file; a dynamic link library (DLL) ( 2 ) for receiving the sign-on logo image file from the application software; a basic input/output system (BIOS) ( 4 ) for receiving the sign-on logo image file from the DLL through a driver model ( 3 ) which connects the DLL with the BIOS, determining whether the sign-on logo image file is valid according a size of the sign-on logo image file, and updating the sign-on logo image file in the computer if the sign-on logo image file is valid; and a read only memory ( 5 ) for storing the sign-on logo image file. A related method is also disclosed.