小编今天就跟大家分享一下关于计算机的英语吧，这些都是关于计算机的英语句子哦，大家快点记忆一下吧。

1.Those parts of MS-DOS that remain on disk until needed are known as external commands; those parts that reside in memory are internal commands.

MS-DOS中被调用前保存在磁盘中的部分被称为外部命令，驻留在内存的中的部分被称为内部命令。

2.Although some are external and others are internal, all MS-DOS commands are used the same way.

虽然MS-DOS命令有些是外部的，有些是内部的，但它们的使用方式相同。

3.If MS-DOS is on your hard disk, you'll notice the external commands mostly because the light on your hard disk comes on when MS-DOS goes to the disk to find them.

如果MS-DOS装在硬盘上，运行外部命令时，你可能会注意到，当MS-DOS去磁盘中寻找相应文件时会使硬盘灯亮。

4.An MS-DOS filename can be made up of two parts separated by a period(.), the first part the filename proper, and the second part the extension.

一个MS-DOS文件名可由用句点(.)分开的两部分组成，第一部分文件名本身，第二部分叫做扩展名。

5.The filename proper can have up to eight characters and the extension is optional and can ave up to three characters.

文件名本身最多可包括8个字符，扩展名是可有可无的，最多3个字符。

6.The filename and extension cannot include certain keyboard characters, such *,?.\/<>" and :. in addition, remember not to use spaces.

文件名和扩展名中不能使用某几个键盘字符，如*,?.\/<>" 和：。另外记住不要使用空格。

7.If MS-DOS cannot accept a character in a command including a filename, you might see Invalid filename or file not found. File not found, Invalid switch, or Parameter format not correct.

如果MS-DOS 不能接受命令(包括文件名中的字符)，你就可能看到非法文件名或文件未找到，文件未找到，非法开关或参数格式错。

8.One wildcard, the question mark(?), can stand for any single character in filename, an extension, or both.

一个通配符是问号(?)，它能代表文件名、扩展名，或两者中的任意单个字符。

9.You can use the second wildcard, the asterisk (*), as part of a filename, an extension, or both, alone or in combination with other characters.

你可用第二个通配符星号(*)作为文件名、扩展名或两者的一个部分，单独用或与其他字符连用均可。

10.A complete file specification might include only a pathname, only a filename, or a combination of pathname and filename, perhaps with wildcards in the filename.

一个完整的文件标识名可以只包括一个路径名、一个文件名或路径名和文件名的组合，文件名中可以有统配符。

11.The Directory command (shortened Dir)is one of the most frequently used of all MS-DOS commands.

Directory 命令(简作Dir)是所有MS-DOS命令中最常用的命令之一。

12.To display a directory listing for drive C, the current drive, type C:\>dir

列出当前驱动器C的文件目录，敲入：C:\>dir

13.To call for a wide listing of files for the current drive, type C:\>dir/w

以宽行方式显示当前目录表，敲入C:\>dir/w

14.To call for a wide listing of all files with the DOC extension on the disk in drive A , you would type C:\>dir a: * .doc/w

将A驱动器中扩展名为DOC的所有文件以宽行列表，要敲入C:\>dir a: * .doc/w

15.To display a long directory listing, such as that for your MS-DOS directory, one screenful at a time, you would type the following: C:\>dir C: \ dos |more

显示一个长目录清单，如MS-DOS目录，一次显示一屏，敲入：C:\>dir C: \ dos |more

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