Computer system and booting method thereof

摘要

A computer system, including a data storage unit which stores first operating system data of the computer system therein; a main memory to which the first operating system data is copied; a data transmission unit which transmits data between the data storage unit and the main memory; and a controller which performs a power-on self test (POST) of the computer system, and controls the data transmission unit to copy the first operating system data stored in the data storage unit to the main memory during the POST.

主权项

1. A computer system comprising:
a data storage unit to store first operating system data of the computer system; a hard disc drive to store second operating system data of the computer system; a main memory to which the first operating system data is copied during a Power-On Self Test (POST) of the computer system; a data transmission unit comprising a Direct Memory Access (DMA) controller, the DMA controller transmitting data from the data storage unit to the main memory so that the first operating system data stored in the data storage unit is copied to the main memory; and a controller to perform the POST of the computer system, to request the DMA controller to copy the first operating system data stored in the data storage unit to the main memory during the POST, and to control the data transmission unit to copy the first operating system data stored in the data storage unit to the main memory in parallel while the POST is being performed in response to the request, wherein the data storage unit comprises a flash memory provided in a mother board or embedded in the hard disc drive, and wherein the DMA controller accesses data of the main memory without support from the controller.