One of the most promising new technologies to help achieve that goal is a new breed of low - powered microprocessors that can vary the speeds at which they operate 在执行复杂的计算任务，如连续处理大批的数字数据时，这种处理器以极高的速度，即"时钟脉冲速度"运行。但是在执行要求较低的任务，如运行一个文字处理器或放音乐时，该芯片能减速。
Text - based contents of pdf documents can be identified as these contents can be selected , copied and be pasted onto a text editor or word processing editor and be visible as normal text under the editor software Pdf格式档案内的文字内容是可以用滑鼠选出复制并贴上一个以文本格式运作的文字处理器内，而所选取的文字内容是可以正确地在该文字处理器下显示出来。
Spreadsheet and eft * programs in the finance departments ; graphics and cad * * software in the research and design departments ; teleconferencing with our tokyo and caracas offices ; databases to store our records and organise our mailings ; and of course absolutely everybody has a word processor 比如财务部的电子数据表和电子资金转账程序：研发中心的图形和计算机辅助设计软件，与设在东京和加拉加斯的办事处召开电话会议，存储记录和整理电子邮件的数据库；当然每个人都拥有一套文字处理器。
