This book covers the syllabus of ggsipu, du, uptu, ptu, mdu, pune university and many other universities.It is useful for b.Tech(cse/it), m.Tech(cse), mca(se) students.Many solved problems have been added to make this book more fresh. Table of contents: 1. Parallel computer models2. Program and network properties3. System interconnect architectures4. Types of processors5. Memory technology