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  3. 學習啦>學習電腦>電腦技巧>《什么是粉碎文件》正文

    什么是粉碎文件

    時間:2015-10-12 17:54:28本文內容及圖片來源于讀者投稿,如有侵權請聯系xuexila888@qq.com 廣達 我要投稿

      “粉碎文件”顧名思義,就是把計算機上的文件徹底刪除,不留痕跡。使用一些文件粉碎工具,可以做到這一點。下面是學習啦小編為大家整理的粉碎文件的技巧,希望大家能夠從中有所收獲!
     

      粉碎文件和直接刪除文件是不一樣的,這要從Windows的文件系統來說了。Windows文件系統包括FAT12、FAT16、FAT32等 FAT 系統和NTFS文件系統。在FAT文件系統中,如果創建一個文件,需要在磁盤上開辟一個“分配表”,就像圖書館的書目一樣。這個表包括一個指針,指向文件 的內容的地址。然后由系統在指向的地址進行文件的讀寫。

    什么是粉碎文件

      同時,其他文件如果要創建的話,就被禁止指向這個地址,以防文件錯亂。而操作系統刪除文件就方便的 多了:直接把“書目”銷毀就可以了。“書目”指向的地址被認為是空。計算機中的數據都是由二進制組成的,在磁盤上顯示為“凹”和“凸”。由于系統無法預測 將要存入的文件詳細信息,因此,文件內容可以認為是隨機的。由數學知識可知,磁盤中的“0”和“1”對重新寫信息沒有在速度方面的影響。

      我們的信息可能被不速之客探測到,可以根據磁盤上的蛛絲馬跡,重新建立起來整個文件,或者文件的一部分,從而刺探到我們的隱私。那樣對我們是很不利的。因此,有了“文件粉碎”這個概念。

    什么是粉碎文件

      “文件粉碎”是將內容和“書目”一塊刪除,這樣,文件的內容對任何人來說都是不可知了。而且一般的文件粉碎軟件都可以將Word、WPS等工具中的歷史紀錄和系統創建的臨時文件刪除,讓任何人都無法得知我們的隱私。

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