DOS MEM Command Usage method

MEM is the abbreviation for memory, which is used to see how much memory you have on your computer and how it is used.

You try to enter the MEM command from the keyboard: mem, then enter

See above is the computer shows the situation of memory, we can see my machine's memory for 24,576k, has used 22,947k, but also left 1,629k available.

See the first line of data displayed, which is an introduction to basic memory conditions, 640K is the total value of basic memory, has been used to 35K, there are 605K available memory, this value is very important, its size determines what you can perform in DOS, when the basic memory remaining value is small, you can not perform some of the larger program.

The MEM command can also be used to roughly determine if a computer is infected with a virus. Because the total value of DOS basic memory should generally be shown as 640K or 639K. If the computer infected with the virus, this value will often change, such as will become 638K or 634K, and so on, when you find that the value of your computer is not 640K or 639K, under normal circumstances, the computer has been infected with the virus, should be used as soon as possible anti-virus software antivirus. Of course, there are many viruses do not change this value, so we should often use anti-virus software to check and clean the computer.