此书首先介绍了嵌入式系统，然后谈及他的特征和优势，以及构造嵌入式系统的关键问题和步骤，最后介绍了一种嵌入式linux操作系统pocket IX- This book first introduced inserts the type system, then refers to his characteristic and the superiority, as well as the structure inserts the type system the key question an