Portable memory for supporting portable computing operation and portable computing operation system using as the same

A portable storage device supporting a portable computing operation and a portable computing operation system using the same are provided to enable a user to perform a task at any place and to distribute or manage application programs more easily by using a portable software image on a more advanced computing operation scheme. A portable storage device supporting a portable computing operation includes a portable computing operation storage unit(201), a portable software storage unit(202) and a portable data storage unit(203). The portable computing operation storage unit stores core elements for driving and operating a portable computing environment whose software can not be deleted or changed via user's direct access. The portable software storage unit stores portable software images usable in the portable computing environment which also can not be deleted or changed via user's direct access. The portable software images are composed of information on installment or setup of software and images of software files and have formats executable without additional installment or setup tasks. The portable data storage unit is displayed to a user like a general portable storage device. The data in the portable data storage unit can be added or deleted.