Computers Computer Facts I want to share!

[dustuchele73]

Impossible name of a folder
It is impossible to create a folder with the name "con" or "Con" on any Microsoft operating system.

Try yourself.............

CON is a reserved name in Windows. It is the name of the Console Device. Actually, this is a lingering remnant from MS-DOS days. In addition to single-letter Device names for disk drives (A:, C:. etc), the other main devices of an IBM PC had reserved names in MS-DOS - PRN for Printer, COM for the serial port, LPT for the parallel port, CLOCK$ for the clock, and - you guessed it - CON for the console (ie the output display).

You will find that you also cannot create a directory called PRN, AUX or COM, either.

If you did manage to create a directory called CON, you'd also find it extremely difficult to delete! Most Windows utilities will refuse to delete a file or directory called CON. This situation arises when someone uses non-standard programming calls to force a directory called CON. Sometimes the only way to delete it again is to reformat the disk.

See here for info on Windows file naming conventions:


Interestingly, the CON device exists in *every* directory in Windows. At a Command Prompt, type in this command in any directory

C:\>IF EXIST FOO ECHO yes

The command won't return any output; because there's no file called FOO in the directory. But next type this:

C:\>IF EXIST CON ECHO yes

No matter which directory you use, it will always print "yes". CON exists everywhere!

You'll need to come up with a different name for the folder you want to create.

Hope it helps

[urpussysucker]

CON is a reserved name in Windows. It is the name of the Console Device. Actually, this is a lingering remnant from MS-DOS days. In addition to single-letter Device names for disk drives (A:, C:. etc), the other main devices of an IBM PC had reserved names in MS-DOS - PRN for Printer, COM for the serial port, LPT for the parallel port, CLOCK$ for the clock, and - you guessed it - CON for the console (ie the output display).

You will find that you also cannot create a directory called PRN, AUX or COM, either.

If you did manage to create a directory called CON, you'd also find it extremely difficult to delete! Most Windows utilities will refuse to delete a file or directory called CON. This situation arises when someone uses non-standard programming calls to force a directory called CON. Sometimes the only way to delete it again is to reformat the disk.

See here for info on Windows file naming conventions:


Interestingly, the CON device exists in *every* directory in Windows. At a Command Prompt, type in this command in any directory

C:\>IF EXIST FOO ECHO yes

The command won't return any output; because there's no file called FOO in the directory. But next type this:

C:\>IF EXIST CON ECHO yes

No matter which directory you use, it will always print "yes". CON exists everywhere!

You'll need to come up with a different name for the folder you want to create.

Hope it helps

thanks for sharing more information buddy!

[kishurex-1]

CON is a reserved name in Windows. It is the name of the Console Device. Actually, this is a lingering remnant from MS-DOS days. In addition to single-letter Device names for disk drives (A:, C:. etc), the other main devices of an IBM PC had reserved names in MS-DOS - PRN for Printer, COM for the serial port, LPT for the parallel port, CLOCK$ for the clock, and - you guessed it - CON for the console (ie the output display).

You will find that you also cannot create a directory called PRN, AUX or COM, either.

If you did manage to create a directory called CON, you'd also find it extremely difficult to delete! Most Windows utilities will refuse to delete a file or directory called CON. This situation arises when someone uses non-standard programming calls to force a directory called CON. Sometimes the only way to delete it again is to reformat the disk.

See here for info on Windows file naming conventions:


Interestingly, the CON device exists in *every* directory in Windows. At a Command Prompt, type in this command in any directory

C:\>IF EXIST FOO ECHO yes

The command won't return any output; because there's no file called FOO in the directory. But next type this:

C:\>IF EXIST CON ECHO yes

No matter which directory you use, it will always print "yes". CON exists everywhere!

You'll need to come up with a different name for the folder you want to create.

Hope it helps

[kishurex-1]

[urpussysucker]

[urpussysucker]

The QWERTY keyboard design fact
The QWERTY keyboard was designed to prevent jams on a keyboard. The early typewriters used arms to impress a letter on paper. If neighbouring keys were used in rapid sucession, then the arms were likely to jam, which was a serious issue. The keyboard was designed to prevent commonly used key combinations from being next to each other. It is widely believed that the keyboard was designed to slow down typists, which is not true.

[nimbus3105]

The QWERTY keyboard design fact
The QWERTY keyboard was designed to prevent jams on a keyboard. The early typewriters used arms to impress a letter on paper. If neighbouring keys were used in rapid sucession, then the arms were likely to jam, which was a serious issue. The keyboard was designed to prevent commonly used key combinations from being next to each other. It is widely believed that the keyboard was designed to slow down typists, which is not true.

Nice..! Thanks for the info.

[urpussysucker]

Nice..! Thanks for the info.

Welcome buddy!