well i know a couple for instance if you make a notepad document and you name it .exe it will become a ms dos run program and if you name it .bat it will run as a system program and if you name it .html it will become a web document but what are the others?
thanks, dan
2006-10-30 16:21:36 · 9 answers · asked by everythingin2 1 in Computers & Internet ➔ Programming & Design
Well, sort of (and speaking only to Windows as the OS).
Naming a Notepad document .exe will make the OS think it is an executable program, but it will in fact NOT be one... the required header information will not be there, and the OS will not load it.
A cmd prompt will run a .exe and a .bat.
Perl will run .pl scripts.
a web browser will load an html file
etc, etc, etc.
Lots of extensions for different things... really depends on what programs you run... and most will load variants no matter the extension.
2006-10-30 16:29:46 · answer #1 · answered by Kevin 6 · 0⤊ 0⤋
What you're describing is DOS/Windows specific. What you describe is in general known as "file associations" which is a feature in windows that allows a program to register support for files of a particular extension or set of extensions. This idea of file associations uses the fact that in the old days DOS had a limit on filenames of 8 chars, a period, and a 3 char extension. Windows has maintained a backward compatible system even though it now allows long filenames as a layer on top of the 8.3 system.
If you come across a file with an extension that has no file association you'll get a prompt from xp to indicate that the file type is unknown, and ask you to tell it which ;program can open the file in question. It willl also let you add the file association to the program you choose.
I believe there's a process that vendors can go through to get microsoft to register their file association "offically" with microsoft, although there's nothing to prevent you from remapping associations. Certain extensions have built in associations (exe, com, bat, pif) that come out of the box, and there are also some standards based associations that windows goes with, like .htm
2006-10-30 16:38:24 · answer #2 · answered by Gizmo L 4 · 0⤊ 0⤋
if you make a notepad document and save it as .exe it wouldn't make it msdos program at all, it will still be a text document with incorrect extension.
in MS-scope, historically, first files to be programs was .COM files, whose contained pure machine codes to be executed directly on the processor. they don't exceed 65kb in either disk space and memory space.
next was MZ EXE files for DOS. Those made use of overlays, extended and expanded memory, exe module resources etc, etc... but they still was just 16-bit machine code.
Win16 and Win32 programs are also named .EXE, however their internal structure is different, yet they still contain machine codes.
Several other file extenstions that could be considered as programs is DLL dynamic load libraries, drivers SYS/VXD and that's about it.
Everything else - TXT, HTML, BAT, CMD is just a TEXT FILES which are interpreted by external programs and NOT EXECUTED by processor explicitly.
2006-10-30 16:34:29 · answer #3 · answered by mouse_tail_0 2 · 0⤊ 0⤋
Hey there,
Since there are many programs and applications, the extensions may vary according to what you use. Not only that, it may vary also on where you're at.
Example: If running Windows you see files such as .exe, .sys, .bat, .msi, .cab, .dll. If on Linux you can see .bin, .conf, .img and so on.
Most common, popular or frequently used extensions include:
Media: .jpg, .gif, .png, .bmp, .mpg, .avi, .wmv, .wav, .mp3, .wma, .cda
Productivity: .doc, .xls, .ppt
Development: .c, .cpp, .cs, .java, .js, .vb, .frm, .h,
Internet: .html, .xml, .css
Communications: .eml (as example for new message on outlook)
Database: .db, .pst (For outlook inbox)
2006-10-30 16:48:18 · answer #4 · answered by Izzy 2 · 0⤊ 0⤋
If you want to know about file extensions and what programs they support, then I recommend visiting the following site:
http://filext.com/
2006-10-31 00:39:22 · answer #5 · answered by IAPONYA3 1 · 0⤊ 0⤋
the unique software is asserted as SAM, or talking SAM. a similar voice out of the action picture "Wargames." they have a super form of nifty new classes that have some written AI to reply to you. some have scripting, so which you will artwork it into your latest applications.
2016-11-26 20:24:44 · answer #6 · answered by alire 4 · 0⤊ 0⤋
Hello:
I'm not sure if this is what you want. I know they are called file extensions. Good luck.
http://www.thereference.com/computer/filext.html
http://www.the-computer-book.com/filenameextension-computer-pc-terms-tips.html
2006-10-30 16:34:16 · answer #7 · answered by sonorarat 3 · 0⤊ 0⤋
.sql (for database), .ini (windows system), etc
2006-10-30 16:34:17 · answer #8 · answered by J 3 · 0⤊ 0⤋
ask my hubby...
2006-10-30 16:29:09 · answer #9 · answered by budi 2 · 0⤊ 2⤋