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【填空题】
信息在计算机内用___表示。
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无符号整数一定是___。
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n位无符号整数的取值范围是___,n位带符号整数的取值范围是___。
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带符号整数中首位的0表示___,1表示___。
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数值为负的整数在计算机内不采用___,而采用___。
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原码n位的取值范围___,补码n位的取值范围___。
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ASCII码即为___标准码。
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一个ASCII码___个字节,___位,最高位为___。
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一个触发器存储一个___。
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用一个字节表示无符号整数,能表示的最大十进制整数是___。
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___是信息领域中的关键技术,是发展电子信息产业和各项高技术的基础。
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___技术是实现电子电路和电子系统超小型及微型化的技术,它以___为核心。
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现代集成电路使用的半导体材料主要是___和___。
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集成度小于100的集成电路称为___(___),100~3000的集成电路称为___(___),3000~10万的集成电路称为___(___),10万~100万的集成电路称为___(___),超过100万的集成电路称为___(___)。
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___是微电子技术的结晶。
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集成电路的特点:体积___,功耗___,速度___,可靠性___。
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集成电路的速度取决于组成逻辑门电路的___。
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晶体管的尺寸越___,其极限工作频率越高。
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单块集成电路平均每___到___个月,这就是著名的___。该定律___永远正确下去。
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IC卡把___密封在塑料卡基片内,使其成为能___,___和___数据的载体。___磁场影响。
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IC卡分为___式和___式。
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集成电路是在___上制作而成的。
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IC卡___磁场影响,能___地存储数据
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RFID的识别过程___人工干预,可以识别___的物体,可以同时___多个标签。
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接触式IC卡适用于存储信息量___,读写操作比较___的场合。
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目前所有的电子产品都是以___为核心。
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手机SIM卡和二代身份证使用的是___卡。
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___是指单块集成电路上所含电子元件的数目。
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