Abbreviations

EMI　　　　　电磁干扰（Electromagnetic Interference）

PCI　　　　　 外部设备扩展接口（Peripheral Component Interconnect）

PROM　　　　可编程序的只读存储器（Programmable Read Only Memory）

EPROM　　　 可擦可编程只读存储器（Erasable Programmable Read Only Memory）

EEPROM　　　电可擦除只读存储器（Electrically Erasable Programmable Read Only Memory）

SRAM　　　　静态随机存储器（Static Random Access Memory）

DRAM　　　　动态随机存储器（Dynamic Random Access Memory）

MRAM　　　　磁阻抗随机存储器（Magnetoresistive Random Access Memory）

〖Ex. 6〗根据课文内容回答问题

(1) What is the computer enclosure used to do?

(2) What does a typical computer enclosure include?

(3) What is a general computer system basically built with?

(4) What is the motherboard?

(5) What is memory? How many basic forms are there? And what are they? What happens to data in them?

(6) How does RAM differ from ROM when the power is disconnected?

(7) What can ROM and RAM be further categorized into?

(8) What is a computer processor often referred to? What is it? How many classes can it be grouped into generally?

(9) What is a hard disk drive?

(10) How is the HDD electrically connected with a motherboard of the computer?