Tracing my installed application on android

After succes开发者_运维技巧sful installation of an in house application on android version 2.3.1 tablet, I need to see the following:

1. Device manager (or program manager) where this app is installed and the app details?
2. Task manager to monitor CPU usage (is there an in built android TM or do I need to install appl to see the CPU usage)
3. Set/Unset Screen resolution (like Graphic display in windows)