You've probably been surrounded for years now by bytes and kilobytes, and megabytes and terabytes, and the like.

也许你已经习惯使用,字节，千字节，兆字节，兆兆字节。

哈佛公开课 - 计算机科学课程节选

That generally is just modifying a few bytes, a few kilobytes worth of information.

这个操作通常只是修改了几个，或者几千字节的有价值的信息。

哈佛公开课 - 计算机科学课程节选

And so this is why in problem set 5 last year when I took photographs on campus with a compact flash card, just standard consumer media and I accidentally formatted that compact flash card, I only lost the first few kilobytes, the first few thousand bits on that compact flash card.

这也是去年的套题5中,我们在校园里面用配有，简易闪存卡的标准摄像机拍照片,我不小心格式化了这个简易闪存卡,其实我只是丢失的最开头的几千个字节的数据。

哈佛公开课 - 计算机科学课程节选