有人曾经对黑客年龄这方面进行过调查，组成黑客的主要群体是18-30岁之间的年轻人，大多是男性，不过也有很多女性加入到这个行列。他们大多是在校的学生，因为他们对计算机有着很强的求知欲，且好奇心强、精力旺盛等诸类因素，这都是使他们步入了黑客殿堂的原因之一。还有一些黑客大多都有自己的事业或工作，大致分为：程序员、资深安全员、安全研究员、职业间谍、安全顾问等。当然这些人的技术和水平是刚刚入门的“小黑客”无法与之相比的，不过他们也是从这一步一点一点地摸索过来的。[1]
Someone once told hacker ages been investigated in this regard, the composition of the major groups of hackers are young people between 18-30 years old, mostly male, but there are a lot of women to join the ranks. Most of them are students in the school, because they have a strong thirst for knowledge of computers, and the curious, energetic and other various categories of factors, this is one of the reasons so that they entered the hall hackers. Some hackers most of them have their own business or work, divided into: programmer, senior security officer, security researchers, career spies, security advisors. Of course, the level of technology and those who are just getting started Little hackers can not be compared, but they are also a little bit this step to fumble over. [1] (2015-06-28, DOS, 95KB, 下载4次)
可开发的一个类似于联通宽带拨上上网的拨号软件，适用于校园内部VPN链接校网上网。
This is a net-link program. (2013-09-30, DOS, 1KB, 下载2次)
多功能数字钟，具有年月日时分秒功能，同时能校时，1个八段数码管显示
Multifunctional digital clock with date, hour function, and can school, an eight digital tube display (2013-07-10, DOS, 763KB, 下载3次)
AT7022校表方法,at7022E的单点校表方法
AT7022 DATASHEET (2012-05-17, DOS, 68KB, 下载168次)
cisco 校园网3校区组网模拟 完全可通 运行环境PT5.3
cisco 3 Campus Network Campus Network Simulation Environment PT5.3 fully into operation in (2011-05-07, DOS, 103KB, 下载12次)
Windows变慢原因分析及解决方法
第一部份系统变慢
一、软件篇
1、设定虚拟内存
硬盘中有一个很宠大的数据交换文件，它是系统预留给虚拟内存作暂存的地方，很多应用程序都经常会使用到，所以系统需要经常对主存储器作大量的数据存取，因此存取这个档案的速度便构成影响计算机快慢的非常重要因素！一般Windows预设的是由系统自行管理虚拟内存，它会因应不同程序所需而自动调校交换档的大小，但这样的变大缩小会给系统带来额外的负担，令系统运作变慢！有见及此，用户最好自定虚拟内存的最小值和最大值，避免经常变换大小。要设定虚拟内存，在“我的电脑”上按右键选择“属性”，在“高级”选项里的“效能”的对话框中，对“虚拟内存”进行设置。
2、彻底删除程序
……………………
how to do when your window have been slowly and slowly,it that something we can do to it?
yes,this document will help you to sold this problem. (2010-04-17, DOS, 16KB, 下载5次)
水泥厂的8路皮带秤配料程序，包括校称，除皮，缺料报警，卡料报警。在水泥厂使用很多。
The 8-way belt scale cement batching procedures, including the school said that, in addition to skin, Queliao alarm, alarm card material. In the cement plants use a lot. (2010-01-03, DOS, 10KB, 下载100次)
水泥厂的粉煤灰螺旋称控制程序，包括校称，除皮，缺料报警，卡料报警。在水泥厂使用很多。
The fly ash cement screw, said control procedures, including school, said, in addition to skin, Queliao alarm, alarm card material. In the cement plants use a lot. (2010-01-03, DOS, 8KB, 下载43次)
水泥厂的16路斗式配料程序，包括校称，除皮，缺料报警，卡料报警。在水泥厂使用很多。
The 10-way bucket cement batching procedures, including the school said that, in addition to skin, Queliao alarm, alarm card material. In the cement plants use a lot. (2010-01-03, DOS, 11KB, 下载51次)
水泥厂的10路斗式配料程序，包括校称，除皮，缺料报警，卡料报警。在水泥厂使用很多。
The 10-way bucket cement batching procedures, including the school said that, in addition to skin, Queliao alarm, alarm card material. In the cement plants use a lot. (2010-01-03, DOS, 10KB, 下载50次)
在某校学生中查询某一学号学生的成绩与名次，并显示
School students in a school in a number of query results and ranking of students, and display (2009-08-17, DOS, 1KB, 下载2次)
本文档主要是关于电力系统中GPS对时系统的应用，内容包括变电站GPS的对时介绍及方案，电力系统GPS同步授时装置的设计及综合校时方案的研究，基于CAN网络的整车授时系统设计，GPS在电力系统中的应用，SLU-3000型卫星定位网络校时系统说明书等。
This document is mainly about power system when the system of GPS applications, including substation when the introduction of GPS and the program, the power system GPS time synchronization equipment design and the comprehensive school program of study, based on the vehicle CAN network time system Design, GPS in power system applications, SLU-3000-based satellite positioning system CyberSchoolBus when such instructions. (2009-02-27, DOS, 403KB, 下载53次)
这是我用QBasic做的一个完整的游戏“命运之手”是我当时在学校时的“开山之作”，有Dos+QBasic+PDos95环境的可以玩一下,情节很棒。记得电脑才出来的时候还没什么游戏，我做了这个在班里大家玩得很开心。
This is what I do with QBasic a complete game, "the fate of hand" I was in school when the "mountains of as" there Dos+ QBasic+ PDos95 environment can play, great plot. I remember when the computer was not anything out of the game, I do all this in class fun. (2009-01-16, DOS, 87KB, 下载17次)
此电子书资料来源于<无忧启动论坛DOS讨论区>。是我在无忧启动论坛DOS讨论区里看到magictek版主发的一篇帖子《MS-DOS 6.22命令帮助全集 》。 magictek版主发的是一个.img的软盘映像文件。虽然感觉很好。但是看的时候觉得费点劲。就用了一些时间做了这本书。 个人感觉这个帮助很全，也很丰富 ---原作者的话
This information comes from e-books (2008-05-04, DOS, 610KB, 下载6次)
模拟某校九层教学楼的电梯系统,实现电梯的基本功能
Simulation of a school nine-storey teaching building of the elevator system, the realization of the basic functions of the lift (2008-01-12, DOS, 10KB, 下载9次)
COM EQU 20H LINE EQU 31H DAT EQU 21H ...2005 无忧电子开发网版权所有 粤ICP备05064233号 12864液晶显示源程序- 无忧电子开发网-在线...
COM LINE EQU EQU 20H 31H 21H DAT EQU 2005 ... no worries electronic Portal Copyright Guangdong opened up ICP No. 05064233 12864 LCD source-opening electronic worries Portal-online ... (2006-04-10, DOS, 3KB, 下载3次)
C++语言的参考书，讲的非常全面，请大家下载用把
C language reference books, in a very comprehensive, please use downloaded put (2005-11-17, DOS, 2938KB, 下载252次)