Abstract: A management server is provided. The management server includes a reception unit which receives information regarding expendable supplies status from at least one image forming apparatus, a storage unit which stores a management condition for each item of expendable supplies of the at least one image forming apparatus, a management unit which manages expendable supplies in an automatic management mode or in a manual management mode according to the stored management condition for each item of expendable supplies, and a controller which changes an expendable supplies management mode for each item of each image forming apparatus by resetting an expendable supplies management condition for each item of the at least one image forming apparatus according to expendable supplies management status of each of the at least one image forming apparatus. Accordingly, an order for expendable supplies may be placed effectively.

Abstract: A digital still camera includes a main body; a liquid crystal display (LCD) panel coupled rotatably to an end portion of the main body of the camera in such a manner that a display portion thereof faces said main body; and a lens housing inserted rotatably and independently into a space formed in a portion where the main body and the LCD panel are coupled.

Abstract: A portable telephone with an exchangeable data input apparatus is provided. The portable telephone includes a bar-type main housing; a holding housing having first and second hinges positioned to face each other, to be protrusive, and to be symmetrical with each other and a sliding surface with a predetermined radius of curvature to be separated from the first and second hinges and attached to and detached from the main housing; and an exchangeable housing having bar-type first and second rotational sub housings with each one side connected to the first and second hinges so that the first and second rotational sub housings are hidden in the main housing when folded in and are in the form of wings protruding from both sides of the main housing when they are unfolded.

Abstract: A digital still camera includes a main body; a liquid crystal display (LCD) panel coupled rotatably to an end portion of the main body of the camera in such a manner that a display portion thereof faces said main body; and a lens housing inserted rotatably and independently into a space formed in a portion where the main body and the LCD panel are coupled.

Abstract: A digital still camera includes a main body; a liquid crystal display (LCD) panel coupled rotatably to an end portion of the main body of the camera in such a manner that a display portion thereof faces said main body; and a lens housing inserted rotatably and independently into a space formed in a portion where the main body and the LCD panel are coupled.

Abstract: A portable telephone with an exchangeable data input apparatus is provided. The portable telephone includes a bar-type main housing; a holding housing having first and second hinges positioned to face each other, to be protrusive, and to be symmetrical with each other and a sliding surface with a predetermined radius of curvature to be separated from the first and second hinges and attached to and detached from the main housing; and an exchangeable housing having bar-type first and second rotational sub housings with each one side connected to the first and second hinges so that the first and second rotational sub housings are hidden in the main housing when folded in and are in the form of wings protruding from both sides of the main housing when they are unfolded.