The software and hardware development fields evolved along separate paths through the end of the 20th century. We seem to have come full circle, however. The previously rigid hardware on which our programs run is softening in many ways. Embedded systems are largely responsible for this softening. These hidden computing systems drive the electronic products around us, including consumer products like digital cameras and personal digital assistants, office automation equipment like copy machines and printers, medical devices like heart monitors and ventilators, and automotive electronics like cruise controls and antilock brakes. Embedded systems force designers to work under incredibly tight time-tomarket, power consumption, size, performance, flexibility, and cost constraints. Many technologies introduced over the past two decades have sought to help satisfy these constraints. To understand these technologies, it is important to first distinguish the underlying embedded systems elements.
标签： development the software hardware
上传时间： 2017-08-15
上传用户：cjf0304
While faster processors, larger memory, and powerful graphics are fundamental requirements for workstations, users are also demanding a low-cost, solution-based approach wrapped around a standards-based technology. The Sun UltraTM 20 Workstation, which leverages the AMD OpteronTM processor with Direct Connect Architecture based on AMD64 technology, provides multiple operating system choices and leading nVidia graphics, delivers a platform that offers flexibility and performance in a cost-effective package with solutions to benefit customers across the board.
标签： requirements fundamental processors graphics
上传时间： 2017-08-17
上传用户：zhaiye
This manual describes SAMSUNG s S3C2410X 16/32-bit RISC microprocessor. This product is designed to provide hand-held devices and general applications with cost-effective, low-power, and high-performance microcontroller solution in small die size. To reduce total system cost, the S3C2410X includes the following components separate 16KB Instruction and 16KB Data Cache, MMU to handle virtual memory management, LCD Controller (STN & TFT), NAND Flash Boot Loader, System Manager (chip select logic and SDRAM Controller), 3-ch UART, 4-ch DMA, 4-ch Timers with PWM, I/O Ports, RTC, 8-ch 10-bit ADC and Touch Screen Interface, IIC-BUS Interface, IIS-BUS Interface, USB Host, USB Device, SD Host & Multi-Media Card Interface, 2-ch SPI and PLL for clock generation.
标签： This microprocessor describes S3C2410X
上传时间： 2014-01-11
上传用户：shizhanincc
Supplemental information for a high-speed serial bus that integrates well with most IEEE standard 32-bit and 64-bit parallel buses is specified. It is intended to extend the usefulness of a low-cost interconnect between external peripherals, IEEE Std 1394-1995. This standard follows the ISO/IEC 13213:1994 Command and Status Register (CSR) architecture.
标签： Supplemental information high-speed integrates
上传时间： 2014-03-07
上传用户：jjj0202
The STi7200 is a new generation, high-definition set-top box/DVD decoder chip, and provides very high performance for low-cost HD systems. With enhanced performance over the STx7109, it includes both Windows Media Video 9 and H.264 video decoders for new, low bitrate applications. The STi7200 is able to decode two HD programs
标签： high-definition generation provides decoder
上传时间： 2013-11-29
上传用户：xg262122
在图形中若于个边(edge)上加上一些值，此数值称为比重( weight ) 。而此图形称为比重图形(Weight Graph ) ，若weight是成本( cost )或距离( distance ) ，则称此图形为网路( Network )。根据Spanning Tree的定义，知一个图形可有许多不同spanning tree ，在network中找出一个具有最小成本( cost )的Spanning tree ，则此Spanning tree称为最小成本生成树。
上传时间： 2013-12-28
上传用户：Shaikh
What you always wanted to know about networking but were afraid to ask! * How networks and the Internet work * How to build coherent, cost-effective network infrastructures * How to design networks for maximum reliability and availability * What you need to know about data center and application networking * How to secure networks against today?s threats and attacks * How to take advantage of the latest mobility technologies * How virtualizing networks can help businesses leverage their network investments even further * How to combine messaging, calendaring, telephony, audio, video, and web conferencing into a unified communications architecture
标签： networking networks always afraid
上传时间： 2013-12-25
上传用户：fandeshun
The object detector described below has been initially proposed by P.F. Felzenszwalb in [Felzenszwalb2010]. It is based on a Dalal-Triggs detector that uses a single filter on histogram of oriented gradients (HOG) features to represent an object category. This detector uses a sliding window approach, where a filter is applied at all positions and scales of an image. The first innovation is enriching the Dalal-Triggs model using a star-structured part-based model defined by a “root” filter (analogous to the Dalal-Triggs filter) plus a set of parts filters and associated deformation models. The score of one of star models at a particular position and scale within an image is the score of the root filter at the given location plus the sum over parts of the maximum, over placements of that part, of the part filter score on its location minus a deformation cost easuring the deviation of the part from its ideal location relative to the root. Both root and part filter scores are defined by the dot product between a filter (a set of weights) and a subwindow of a feature pyramid computed from the input image. Another improvement is a representation of the class of models by a mixture of star models. The score of a mixture model at a particular position and scale is the maximum over components, of the score of that component model at the given location.
标签： 计算机视觉
上传时间： 2015-03-15
上传用户：sb_zhang
探討電容可以使用的壽命，以便cost down
标签： 電容元件
上传时间： 2015-06-28
上传用户：任金霞2018
switch power China IC, powerful and low cost
上传时间： 2015-09-29
上传用户：dxj1900
