Abstract: In a multidirectional operating switch, an operating body has a support having a spherically convex surface on the lower end of a central cylinder, and a holding base has a retainer having a spherically concave surface disposed opposite to the support. Through the movement of the support sliding over the retainer, the holding base retains the operating body rockably in multiple directions. The rotational center of the rocking movement of the operating body coincides with the position at which the push element is in contact with the push section disposed at the lower end of the operation button.

Abstract: In a multidirectional operating switch, an operating body has a support having a spherically convex surface on the lower end of a central cylinder, and a holding base has a retainer having a spherically concave surface disposed opposite to the support. Through the movement of the support sliding over the retainer, the holding base retains the operating body rockably in multiple directions. The rotational center of the rocking movement of the operating body coincides with the position at which the push element is in contact with the push section disposed at the lower end of the operation button.

Abstract: A U-shaped spring member is placed on the outer periphery of a hollow cylindrical part of an operating body. Engaging portions in arm portions upwardly inwardly extending from both ends of the spring member are fitted into holes through the hollow cylindrical part and brought into resilient contact with a groove on the outer periphery of an operating shaft. This structure provides a switch device that has great resistance to pull-out of the operating body for secure fastening thereof and is easy to assemble.

Abstract: A U-shaped spring member is placed on the outer periphery of a hollow cylindrical part of an operating body. Engaging portions in arm portions upwardly inwardly extending from both ends of the spring member are fitted into holes through the hollow cylindrical part and brought into resilient contact with a groove on the outer periphery of an operating shaft. This structure provides a switch device that has great resistance to pull-out of the operating body for secure fastening thereof and is easy to assemble.

Abstract: A switch device includes a operation body, a membrane switch pushed by the operation body, and plural push switches activated by pushing the operation body via the membrane switch. The membrane switch includes plural contact switches electrically connected upon being pushed by the operation body. The switch device is activated easily without operating errors.

Abstract: A switch device includes a operation body, a membrane switch pushed by the operation body, and plural push switches activated by pushing the operation body via the membrane switch. The membrane switch includes plural contact switches electrically connected upon being pushed by the operation body. The switch device is activated easily without operating errors.

Abstract: An advertising information memory area for storing advertising information for displaying prescribed advertisement, and a label information memory area for storing label information for presenting a space for displaying advertisement, are provided. A personal computer refers the label information memory area and the advertising information memory area, synthesizes advertisement images and character strings based on the advertising information, and displays the same in the label image based on the label information. An advertising environment is provided which is highly effective in a personal computer environment.