Abstract: An improved portable personal computer preferably configured to facilitate outdoor field-use has an impact attenuating case, a sealed keyboard, and a sealed mouse which facilitate use of the computer in harsh environments. The case has a impact attenuating covering in which is housed a hard drive on a shock-isolated mount and a display further mounted in die case in a resilient shock-isolated manner. The case, hard drive mount, and display mount cooperate to attenuate shock-induced damage resulting from impacts and sudden accelerations of the computer caused during rugged use. Furthermore, the sealed keyboard and mouse assemblies prevent any damage which might result from liquids migrating within the case and into the computer components.

Abstract: An improved cradle assembly has a base with a mounting surface configured to removably receive a portable electronic device. The cradle assembly also has a cooler supported by the base to facilitate use of the portable electronic device in warm, or harsh, thermal environments. The cooler is positioned in thermally conductive relation with a portable electronic device that is received on the mounting surface. The cooler is operable to dissipate heat from the portable electronic device. In an alternative construction, a heat generator is substituted for the cooler to provide thermal heating of the portable electronic device in order to facilitate use of the device in cold, or harsh, thermal environments.

Abstract: An improved portable personal computer preferably configured to facilitate outdoor field-use has an impact attenuating case and a sealed keyboard which facilitate use of the computer in harsh environments. Furthermore, the sealed keyboard assembly prevents any damage which might result from liquids migrating within the case and into the computer components.