A robotic catheter system includes a controller with a master input device. Block management information which includes a file number for identifying a file, sequential order number indicative of the sequential order of the block storing data of the file and page length information indicative of the size of the data stored in the block is formed and stored in a block management information storing unit. The decorative pattern has a curved or non-linear upper boundary which gives the sleeve the appearance of having a curved or non-linear upper skirt extending from the base portion. Speaker covers for built-in speakers can be provided in the top face.