2. 计算机
  3. An embedded device is an object that conmins a ________________ computing system．The system，which is completely enclosed by the

An embedded device is an object that conmins a ________________ computing system．The system，which is completely enclosed by the

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问题 An embedded device is an object that conmins a ________________ computing system．The system，which is completely enclosed by the object，may or may not be able to connect to the Internet．Embedded systems have extensive applications in consumer，commercial，automotive，industrial and healthcare markets．It’S estimated that over 15 billion embedded devices have  been connected to the Internet，a phenomenon commonly referred to as the ________________．Generally, all embedded device’s operating system will only nln a single application which helps the  device to do its job．Examples of embedded devices include dishwashers，banking ATM  machines，routers，point of sale terminals(POS terminals)and cell phones．Devices that call  connect to the Interact are called smartorintelligent．If an embedded device can not connect  to the Internet，it is called dumb，Embedded devices in complex manufactured products，such  as automobiles，are often headless．This simply means that the device’S software does not have  a user interface(U1)．In such cases，an in—circuit ________________ is temporarily installed between the  embedded device and an external computer to debug or update the software．Because  embedded systems have limited computing ________________ and strict power requirements，writing  software for embedded devices is a very specialized field that requires knowledge of both  hardware components and ________________．
选项 A、programming
B、special—purpose
C、user
D、big
答案B
解析
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