A portable terminal generally includes a first or main body and a second or sub-body. The sub-body is slidable relative to the main body between a closed position and an opened position. The sub-body is configured to drop downwardly into a stepped-down portion of the main body when the sub-body is in the opened position. At least one biasing device or elastic means may be provided for applying a force for biasing the sub-body to drop downwardly towards the stepped-down portion.