According to one embodiment a computer system is disclosed. In one embodiment, a mobile device is able to receive over a cellular or IP network a response or content to be cached and wirelessly access the physical storage of the other device via a wireless network to cache the response or content for the mobile device. The metadata are text data including a clip ID and continuing time information of material data, and they are small in information quantity. The catheter system includes a biasing element configured to bias the engagement structure toward the engaged position, and the biasing element is aligned generally parallel to the path defined by the engagement structure.