【单选题】【消耗次数：1】
486微机的字长是（）。
①
8位
②
16位
③
32位
④
64位
参考答案：
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相关题目
【单选题】
某机字长32位，采用原码定点小数表示，符号位为1位，数值位为31位，则可表示的最大正小数为（），最小负小数为（）
①
+(232-1)，-(1-2-31)
②
+(231-1)，-(1-2-32)
③
+(1-2-31)，-(1-2-31)
④
+(231-l)，-(1-2-31)
【单选题】
某机字长16位，采用补码定点小数表示，符号位为1位，数值位为15位，则可表示的最大正小数为（），最小负小数为（）
①
+(216-1)，-(1-2-15)
②
+(215-1)，-(1-2-16)
③
+(1-2-15)，-1
④
+(215-1)，-(1-2-15)
【单选题】
某机字长32 位，采用原码定点整数表示，符号位为1 位，数值位为31 位，则可表示的最大正整数为（），最小负整数为（）
①
+(231-1)，-(231-1)
②
+(231-1)，-(232-1)
③
+(230-1)，-(230-1)
④
+(231-1)，-(1-231)
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