In case you haven t realized it, building computer systems is hard. As the complexity of the system gets greater, the task of building the software gets exponentially harder. As in any profession, we can progress only by learning, both from our mistakes and from our successes. This book represents some of this learning written in a form that I hope will help you to learn these lessons quicker than I did, or to communicate to others more effectively than I did before I boiled these patterns down.
标签： complexity the building computer
上传时间： 2015-04-25
上传用户：tyler
说明：这个程序与温控仪设置方式一样。SET选择设置模式；LEFT键选择需要设置的位；UP键加置数，如果按住UP键不放就自动向上计数，最大值999；DOWN键减置数，如果按住DOWN键不放就自动向下计数，一直到0。待设置的位是高亮显示的。
上传时间： 2013-12-16
上传用户：225588
abel Tool Sample Requires: Visual Basic 6 and MapObjects 2.x Data: redlands.shp (Redlands sample data set from MO 2.x) Interactive Labeling Tool If the check box is checked, then the mouse down location will search for the closest line, and label it with the street name. If the check box is not checked, then the mouse down will turn into a pan/zoom tool. There is a slider bar to control the search tolerance in screen pixels for the labeling.
标签： MapObjects Requires Redlands redlands
上传时间： 2013-12-17
上传用户：sunjet
Features • Compatible with MCS-51® Products • 8K Bytes of In-System Programmable (ISP) Flash Memory – Endurance: 1000 Write/Erase Cycles • 4.0V to 5.5V Operating Range • Fully Static Operation: 0 Hz to 33 MHz • Three-level Program Memory Lock • 256 x 8-bit Internal RAM • 32 Programmable I/O Lines • Three 16-bit Timer/Counters • Eight Interrupt Sources • Full Duplex UART Serial Channel • Low-power Idle and Power-down Modes • Interrupt Recovery from Power-down Mode • Watchdog Timer • Dual Data Pointer • Power-off Flag
标签： 8226 Programmable Compatible In-System
上传时间： 2015-06-27
上传用户：dianxin61
This design is a universal register which can be used as a straightforward storage register, a bi-directional shift register, an up counter and a down counter.
标签： register straightforward universal storage
上传时间： 2013-12-28
上传用户：努力努力再努力
电话计费器程序/*信号定义： clk： 时钟信号，本例中其频率值为1Hz； decide： 电话局反馈回来的信号，代表话务种类，“01”表示市话，“10”表示 长话，“11”表示特话； dispmoney： 用来显示卡内余额，其单位为角，这里假定能显示的最大数额为50 元 （500 角）； disptime： 显示本次通话的时长； write,read： 当write 信号下降沿到来时写卡，当话卡插入，read 信号变高时读卡； warn： 余额过少时的告警信号。本例中，当打市话时，余额少于3 角，打长 话时，余额少于6 角，即会产生告警信号； cut： 当告警时间过长时自动切断通话信号。 */
上传时间： 2014-01-15
上传用户：hewenzhi
Open Source for the Enterprise Open source software is changing the world of Information Technology. But making it work for your company is far more complicated than simply installing a copy of Linux. If you are serious about using open source to cut costs, accelerate development, and reduce vendor lock-in, you must institutionalize skills and create new ways of working. You must understand how open source is different from commercial software and what responsibilities and risks it brings. Open Source for the Enterprise is a sober guide to putting open source to work in the modern IT department.
标签： Open Information Enterprise the
上传时间： 2013-12-27
上传用户：R50974
软件测试新手学习宝典，PowerPoint幻灯片讲解，详细深刻，建议测试初学者Down
上传时间： 2015-07-19
上传用户：cccole0605
本人上传的lpcucosii.rar程序的电路原理图。针对本电路，用ADS1.2对程序进行编译后，down到电路板上可以多任务方式演示板上各部分电路的功能。
上传时间： 2014-01-11
上传用户：kristycreasy
Design Specification Introduction Goals and Objectives GameForge is a graphical tool used to aid in the design and creation of video games. It attempts to bring game development down to a level that any computer savvy user can understand, without requiring masterful programming ability. A user with limited Microsoft DirectX and/or Visual C++ programming knowledge will be able to construct a basic, 2-D arcade game. GameForge limits the amount of actual code written by the user, if not eliminating it completely. It will also assist experienced programmers in generating the Microsoft DirectX and Microsoft Windows9x overhead necessary for basic game construction, allowing them to concentrate on more detailed game design issues and implementation.
标签： Specification Introduction Objectives GameForge
上传时间： 2013-12-27
上传用户：wl9454
