A patterned series of these tiny charged berries on the disk represents a single bit of data in the binary number system used by computers.
这些在磁盘上的有序的小粒子,代表这个当代计算机中,二进制中单独的一位。
Seventy-nine. In fact, if you add up each of these numbers, 9 you should get the decimal number 79 79 from this binary number here.
9,事实上,如果你把这些数字累加,你应该能从这些二进制中9,得到十进制数。
Remember, we saw that last time looking at the binary numbers. 2 to the n is a big number.
还记得吗,我们上次看过的二进制数,从2到n是一个很大的数。
Well, if we actually want to represent something like the number 7, well in binary, not actually in decimal like this.
如果你表达,类似于7的数字,在二进制中,它和十进制可不太一样。
So just as a little sanity check, number 15 in binary would be?
再来做个测试,那么二进制中15怎样表达?
to the n, every value in the 1 bit vector we looked at last time is either 0 or 1. So it's a binary n number of n bits, 2 to the n.
从2到n,我们上次看到的,位向量的每个值不是0就是,所以它是n,比特的二进制数,从2到。
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