有哪些信誉好的足球投注网站- 1、本文档共5页，可阅读全部内容。
- 2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
- 3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
查看更多
CHAPTER 5
Computer Organization
(Solutions to Practice Set)
Review Questions
1. The three subsystems are the central processing unit (CPU), the main memory, and
the input/output.
2. The CPU has an arithmetic logic unit (ALU), a control unit, and various kinds of
registers.
3. The ALU performs arithmetic and logical operations.
4. The control unit is responsible for controlling the operations of all other sub-
systems.
5. The main memory stores data and programs when the program is being executed.
6. RAM is random access memory and can be read from and written to by the user.
ROM is read only memory. The contents of ROM are written by the manufacturer
and cannot be overwritten by the user. SRAM is static RAM that uses flip-flop
gates to hold data. DRAM is dynamic RAM that uses capacitors to hold the data.
PROM is programmable read only memory and can be programmed by the user
using special equipment. EPROM is erasable PROM and can be erased by the user
using a special device that uses UV light. EEPROM is electronically erasable
PROM that can be reprogrammed while it is still installed in the computer.
7. The cache memory provides the CPU with fast access to part of data stored in main
memory.
8. A magnetic disk consists of one or more disks with a magnetic coating and one
read/write head for each disk surface.
9. The surface of a magnetic disk is divided into circular rings called trac
文档评论（0）