The Linux Enterprise Cluster explains how to take a number of inexpensive computers with limited resources, place them on a normal computer network, and install free software so that the computers act together like one powerful server. This makes it possible to build a very inexpensive and reliable business system for a small business or a large corporation. The book includes information on how to build a high-availability server pair using the Heartbeat package, how to use the Linux Virtual Server load balancing software, how to configure a reliable printing system in a Linux cluster environment, and how to build a job scheduling system in Linux with no single point of failure. The book also includes information on high availability techniques that can be used with or without a cluster, making it helpful for System Administrators even if they are not building a cluster. Anyone interested in deploying Linux in an environment where low cost computer reliability is important will find this book useful.
标签： inexpensive Enterprise computers explains
上传时间： 2014-11-29
上传用户：zhangliming420
Easy-to-Use, Ultra-Tiny, Differential, 16-Bit Delta Sigma ADC With I2C Interface The LTC2453 is an ultra-tiny, fully differential, 16-bit, analog-to-digital converter. The LTC2453 uses a single 2.7V to 5.5V supply and communicates through an I2C interface. The ADC is available in an 8-pin, 3mm x 2mm DFN package. It includes an integrated oscillator that does not require any external components. It uses a delta-sigma modulator as a converter core and has no latency for multiplexed applications. The LTC2453 includes a proprietary input sampling scheme that reduces the average input sampling current several orders of magnitude lower than conventional delta-sigma converters. Additionally, due to its architecture, there is negligible current leakage between the input pins.
标签： Differential Easy-to-Use Ultra-Tiny Interface
上传时间： 2014-01-08
上传用户：凤临西北
DirectX not only provides fast access to the hardware and therefore incredibly speedy performance, but it also makes it much easier for hardware developers to produce new devices that work well in the Windows environment. The DirectX APIs take away the necessity of writing your own low-level, device-specific code to access hardware such as the display adapter and network card, making it much easier for you to write programs that take full advantage of the computer s multimedia capabilities.
标签： performance incredibly therefore hardware
上传时间： 2016-02-16
上传用户：秦莞尔w
计数器 锁存器 12位寄存器 带load，clr等功能的寄存器 双向脚（clocked bidirectional pin） 一个简单的状态机 一个同步状态机 用状态机设计的交通灯控制器 数据接口 一个简单的UART 测试向量（Test Bench）举例： 加法器源程序 相应加法器的测试向量test bench）
上传时间： 2014-01-16
上传用户：bjgaofei
SX-CPLD/FPGA 数字逻辑电路设计实验仪 SX-CPLD/FPGA 数字逻辑电路设计实验仪 产品介绍 1.利用CPLD/FPGA 提供的软硬件开发环境学习最新逻辑IC 设计，以取代TTL/CMOS 复杂的硬件设计。 2.可使用电路绘图法、ABEL 语言、波形图和数字硬件描述语言法(VHDL/AHDL)来开发电路。 3.CPLD/ FPGA 提供引脚可任意设定,故作测试实验时不需要做硬件连接,可节省大量连线焊接时间,快速学习软硬件的运用。 4.CPLD/ FPGA 每一I/O Pin 皆有逻辑状态监视器，以便迅速了解每一引脚状态。 5.清楚标示每一管脚的脚位，易于观察和测量。 6.使用并口在开发系统下直接下载。 7.可在线将CPLD/ FPGA 程序到FLASH ROM，实验仪可独立运行，适合大学生EDA 电子竞赛。 8.可做8051 和CPLD/ FPGA 的组合电路实验。 9.适用于WINDOWS95/98/NT/2000/XP 操作系统。 10.数万门的现场可编程芯片让设计所思即所得。
上传时间： 2016-03-14
上传用户：671145514
蓝牙芯片参数修改程序，用来修改蓝牙耳机的内部地址，PIN码等参数
上传时间： 2016-03-15
上传用户：6546544
Scotia Airlines is a new budget airline operating between Glasgow Airport and the Western Isles. It operates two 24-seater light passenger aircraft and requires a flight booking system. Because Scotia offers low cost air travel, there is a need to treat each flight as single cost centre and to be able to ascertain, at any moment, the amount of the cash taken for that flight. Reservations and bookings cannot be made until the flight details have been finalised (flight number, departure and arrival airports). A seat on a flight is considered booked when payment as been received for it. When a reservation is confirmed (changed to booked), the passenger name is checked against the original reservation. A flight can be in any of the following states: Available for bookings Checking in Boarding Closed
标签： operating Airlines Glasgow Airport
上传时间： 2016-03-25
上传用户：hgy9473
This example demonstrates how the C8051F06x SMBus interface can communicate // with a 256 byte I2C Serial EEPROM (Microchip 24LC02B). // - Interrupt-driven SMBus implementation // - Only master states defined (no slave or arbitration) // - Timer4 used by SMBus for SCL low timeout detection // - SCL frequency defined by <SMB_FREQUENCY> constant
标签： demonstrates communicate C8051F06x interface
上传时间： 2016-04-12
上传用户：hanli8870
The second volume in the Write Great Code series supplies the critical information that today s computer science students don t often get from college and university courses: How to carefully choose their high-level language statements to produce efficient code. Write Great Code, Volume 2: Thinking Low-Level, Writing High-Level, teaches software engineers how compilers translate high-level language statements and data structures into machine code. Armed with this knowledge, a software engineer can make an informed choice concerning the use of those high-level structures to help the compiler produce far better machine code--all without having to give up the productivity and portability benefits of using a high-level language
标签： information the critical supplies
上传时间： 2014-02-21
上传用户：luke5347
This manual describes Freescale’s IEEE™ 802.15.4 Standard compliant MAC/PHY software. The Freescale 802.15.4 MAC/PHY software is designed for use with the Freescale MC1319x and MC1320x, family of short range, low power, 2.4 GHz Industrial, Scientific, and Medical (ISM) band transceivers, designed for use with the HCS08 Family of MCUs. The MAC/PHY software also works with the MC1321x family of short range, low power, 2.4 GHz ISM band transceivers that incorporate a low power 2.4 GHz radio frequency transceiver and an 8-bit microcontroller into a single LGA package. Throughout this manual, the term transceiver refers to either the MC1319x, MC1320x, or the internal counterpart inside the MC1321x System in a Package (SiP).
标签： Freescale describes compliant Standard
上传时间： 2016-04-17
上传用户：caiiicc
