The forth chapter introduces the mainboard's hardware design of tax controlled receiver. The mainboard contains common facility, such as CPU, LCD drive, FLASH, serial interface , and so on.

第四章详细介绍了税控收款机主板的硬件设计，主板包括CPU、LCD液晶驱动、FLASH、串口等常用的外设。

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A text file is a sequence of characters stored on a permanent medium like a hard drive, flash memory, or CD-ROM.

文本文件就是一系列的字符串，存储在一个永久介质中，比如硬盘、闪存或者光盘之类的东西里面。

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The flash memory in the Fusion Drive moves data and applications frequently accessed by the user to the flash memory and move less frequently used data to the hard disk drive as the flash memory becomes full.

FORBES: Will A Fusion Drive Approach Become Widespread in Computers?

This last week saw some interesting announcements representing the implementation of technologies that will enhance hard disk drive and flash memory technology in 2013 and beyond.

FORBES: Rare Gases and Fine Lines

Once you e-file the return, take it off your hard drive and store it on a CD or flash drive in a safe place, like a lock box or safe.

FORBES: IRS Issues Advice On How To Avoid Identity Theft