COM is short for command, being a file that contains instructions that can do something on your computer. COM files are for DOS based systems and tend to run faster than EXE type programs. You can think of them as the WordPad of word processing, a very simple program as compared to EXE programs. Viruses will often infect COM files. When the COM file is run the virus is run as well, often putting it into memory.
A COM file (short for command) is a type of executable file limited to 64 KB. Typically used for utility programs and small routines, these executable COM files are susceptible to virus infection. Once the COM file is run, the virus is run as well and many times loaded into memory.
a compiled executable file and not an audio file format file
COM is short for command, being a file that contains instructions that can do something on your computer. COM files are for DOS based systems and tend to run faster than EXE type programs. Viruses will often infect COM files. When the COM file is run the virus is run as well, often loading it into memory. Note: The Windows operating system treats files with a .COM extension the same as other executable type files. Some viruses and trojans use a filename ending in .COM (ie. http://virus.com). Typically, these portable executable files and not real COM files.
A type of executable file limited to 64 kb. These simple files are often used for utility programs and small routines. Because COM files are executable, viruses can infect them. This file type has the extension COM.
A computer file name ending in .COM which most often contains a machine code program. It is short for " command " file.
Short for "command." An executable file that contains instructions to do something on your computer. COM (.com) files are for DOS-based systems and tend to run faster than EXE (.exe) type programs. Viruses often infect COM files. When the COM file executes, the virus executes as well, often loading it into memory. Note: The Microsoft® Windows® operating system treats files with a COM extension the same as other executable type files. Some viruses and Trojans use a filename ending in COM (i.e., http://virus.com). Typically, these portable executable files are not real COM files.
A PC-DOS binary image that is loaded into memory. It has restrictions in size and method of program load. It generally loads somewhat faster than an EXE file and has a simpler structure.
In MS-DOS and compatible DOSes, and in 8-bit CP/M, a COM file is a simple type of executable file. The name of the file format is derived from the file name extension .com (not to be confused with the .com top-level domain), which was originally the extension used for such files. However there is no actual association between the file format and the file name extension in any but CP/M and very early versions of MS-DOS.
