DOS quick start method

Learning DOS (disk operating system) well is the first step to learn to use and operate microcomputer. However, many beginners have never been in contact with computer, which affects further learning. Based on many years of teaching experience, I think it is effective to combine some computer knowledge with some concepts in our daily life to understand and remember.
1、 About DOS command format
Computers are designed and manufactured by people, so in order for computers to complete a specific operation, corresponding commands must be issued to computers. This is like a leader giving instructions to his subordinates. In order to facilitate operation, people have specially formulated a unified command syntax format for DOS:
[D:] [path \] command word [parameter] [switch character /]
Where: [D:] is the drive letter, which can be disks a, B, C and D;
[path \] is the path, which can be the root directory or subdirectory;
[parameter] is used to indicate the object and target of command operation, including [D:] [path \] < file name >;
[switch character /] is an additional function of the command by adding an English letter or number from “/”.
This grammar format is the same as our Chinese grammar. At that time, you can only write articles according to this grammar, otherwise you will have problems and make grammatical mistakes. For example, subject predicate object is the most typical Chinese grammar, “we learn computer” meets this grammar, but if it is written as “learn our computer” or “we learn computer”, it will be incomprehensible and unacceptable. Therefore, when operating DOS commands, we must also strictly follow the command syntax of DOS to avoid any error. The above DOS command syntax format is applicable to both external and internal DOS commands.
2、 Some key words in DOS
In fact, the error message will not be displayed when the computer is operating or operating. The reason why it is difficult for beginners to master is that most of them do not know English words or computer terminology. However, when using the computer, if you can grasp some key words, you can generally understand the contents of error information or prompt information, so as to make judgment and processing according to these information. For example, if the file cannot be found, the computer will prompt: file not found; If there is a problem with the command you typed, the computer will prompt: Bad command; if the path is wrong, the computer will prompt: Invalid path. The following DOS keywords will help beginners understand and master DOS prompt information in a short time.
Noun: file directory path command disk system drive name data date time
Adjectives: bad invalid error
Verb: find or find boot
Others: not or non and or cannot