A dually foldable host unit case for a computer includes a first plate member, an upper cover member, a lower cover, a front wall and a rear wall. In that method, content for two or more subscriber lines of the customer location is received and converted into packetized data for network communications andor multiplexed to form an added-main-line signal that includes power. The following steps are repeated for each segment in the input string until a subset for each segment in said input string is identified:a. When the average power coefficient for the second time period is less than for the first, the pitch increment is subtracted. A display device includes: a display part having a display face and being flexible; and a restriction part having a plurality of first convex parts to restrict a bending quantity of the display part. The overshoe can be worn over a wide variety of street, work, office, and specialty footwear and may support reduction of electro-static discharge buildup on the body of the wearer by safely conducting any electrical charge generated or transferred to the body of the wearer to a grounded surface such as an electrically conductive floor.