Abstract: To allow for switching between a normal display and a zoom display by a simple operation, thereby providing both of a large amount of information by high resolution and high visibility of the display. In a computer system having a display apparatus as output unit, an input section 50 for accepting a user operation to issue a request for changing a display zoom factor, a resolution changer 10 for changing the resolution of the display apparatus in response to the request for changing the display zoom factor issued by the input section 50, and a window resizer 20 for resizing a predetermined window displayed on the display screen 70 of the display apparatus so as to be displayed over almost the entire display screen 70 after the resolution is change by the resolution changer 10.

Abstract: A computer apparatus in which a plurality of communication adapters 20 (20-1 to 20-4) are installed and which communicates with an external entity through the plurality of communication adapters 20 is provided. The computer includes a utility 11 for controlling the enable/disable of the communication adapters 20 and an NDIS 18 for exchanging data between the utility and the communication adapters 20. The utility 11 inquires of the NDIS 18 to obtain the number and type of available communication adapters 20 and provides a suspend event to the NDIS 18 if a communication adapter 20 to be enabled is not enabled previously or provides a resume event to the NDIS 18 if the communication adapter 20 to be enabled is enabled and requested to be disabled.