A typical PC owner might see the system as a barter economy in which he gets free services, such as file backup and Web hosting, in exchange for the use of his otherwise idle processor time and disk space.

• 一般个人电脑的所有者可能会将这个系统视为以物易物的经济架构，可用?置的处理器时间和硬碟空间换取免费的服务，像是档案备份以及网站代管。