Level 1 2 3 4 s Hardware Lowest Manageable Subdeliverables Supply E-Slim Tablet x-13 Prototype CPU Flash ROM Work Packages Frame Cameras WP-CI WP-C2 WP-C3 WP-C4 Speakers WP-SI Charger Antenna wp-Al WP-A2 WP-A3 USB Slots Keyboard WP-KI 1/0 Controller Internet Touch Sensors wp_TS1 WP-TS2 WP-TS3 I More items Touch Screen Back Light WP-LI WP-L2 WP-L3 Resolution wp_R1 WP-R2 WP-R3