数字设计和计算机体系结构_习题答案Digital Design and Computer Architecture,Exercises Solutions.pdf

David Money Harris and Sarah L. Harris, Digital Design and Computer Architecture, © 2007 by Elsevier Inc.

Exercise Solutions

C H A P T E R 1

SOLUTIONS

David Money Harris and Sarah L. Harris, Digital Design and Computer Architecture, © 2007 by Elsevier Inc.

Exercise Solutions

2 C H A P T E R s o l u t i o n s

David Money Harris and Sarah L. Harris, Digital Design and Computer Architecture, © 2007 by Elsevier Inc.

Exercise Solutions

S O L U T I O N S 1

CHAPTER 1

1.1 (a) Biologists study cells at many levels. The cells are built from or-

ganelles such as the mitochondria, ribosomes, and chloroplasts. Organelles are

built of macromolecules such as proteins, lipids, nucleic acids, and carbohy-

drates. These biochemical macromolecules are built simpler molecules such as

carbon chains and amino acids. When studying at one of these levels of abstrac-

tion, biologists are usually interested in the levels above and below: what the

structures at that level are used to build, and how the structures themselves are

built.

(b) The fundamental building blocks of chemistry are electrons, protons,

and neutrons (physicists are interested in how the protons and neutrons are

built). These blocks combine to form atoms. Atoms combine to form molecules.

For example, when chemists study molecules, they can abstract away the lower

levels of detail so that they can describe the general prop