MS-DOS

Netbooks

DOS computers are no longer sold on the mainstream market. Dell sells some barebones computers bundled with FreeDOS, due to licensing restrictions, but most of the hardware would be unusable in DOS.

Quite frankly, you can probably buy an old, used computer with the hardware to run most DOS programs for about 10 bucks. Any Pentium II or Pentium III with an ISA slot (for a SoundBlaster card) should be good enough to run most applications that are not timing-dependent. On a commercial scale, you would almost certainly want to get a contract with an embedded systems design company to build "new" DOS computers.

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Internal DOS commands are those provided internally by cmd.exe:

BREAK, CD/CHDIR, CHCP, CLS, COPY, CTTY, DATE, DEL/ERASE, DIR, EXIT, LOADHIGH, LOCK, MD/MKDIR, PATH, PROMPT, RD/RMDIR, SET, TIME, TRUENAME, TYPE, UNLOCK, VER, VOL, VERIFY.

External commands are those provided by separate executables.

A single-user operating system is a type of operating system (OS) that is developed and intended for use on a computer or similar machine that will only have a single user at any given time. This is the most common type of OS used on a home computer, as well as on computers in offices and other work environments. There are two general types of single-user operating system: single task and multitasking systems. Though a single-user operating system can be connected to other systems through a network, it is still truly only used by a single person and is different than a multi-user OS. A single-user operating system that is a single task system is developed for use with a computer or electronic device that will only run one application at a time. This type of OS is typically used on devices such as wireless phones and two-way messaging devices. A single task, single-user operating system can only run one program or application at a time, and so is not as useful for a computer or other device intended to run multiple programs at once.

If you use the Windows OS check out this link from Microsoft.

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/telnet_commands.mspx?mfr=true

Telnet: TELNET (TELetype NETwork) is a network protocol used on the Internet or local area network (LAN) connections. It was developed in 1969 and standardized as IETF STD 8, one of the first Internet standards.

Follow some step:-

Step # 1: First, open a command prompt. To open a command prompt window, click Start, Run and then type in cmd and press Enter. You can also press the +R to open the Run prompt and then type in cmd in the open text box.

Step # 2: You need to know a remote mail server. If you are still in school or working, there is the excellent opportunity to use your University mail server or your company's mail server for this.

type in telnet RemoteMailServer 25 at the command prompt. The Remote mail server here in this command is the mail server of your school or company. It is usually mailhost..edu or compmail..com or something on those lines. When you press enter, you are shown a quick prompt that you are connecting to the remote mail server.

Step # 3: Introduce yourself to the mail server. Play around a bit.

type in helo mailhost at the command prompt. The mail server responds back with something like this

250 RemoteMailHost. Hello , pleased to meet you.

Step # 4: You can now enter your email address.

type in mail from: your email id @ blah.com

The mail server responds back with a 250 … sender ok

Step # 5: You can now enter your receipient's email address

type in rcpt to: recipient email id @ blah.com

The mail server responds back with a "Recipient OK" message

Step # 6: Now, you are ready to type in the body of the email message.

type in data and press enter.

Now, type your message and then finally press Enter. To end your message type in a single period "." . Your message is now in the queue

Step # 7: To complete and finish the process, type in quit and press enter. The mail server responds with a "Bye" after which you see a "Connection to host lost" message displayed.

Not all but most DOS software can run on Windows 98..

sam file is located inside C:\ windows system 32 config folder ypu have to stop the file process by booting window with mini xp download hirenboot and burn it boot windows and install hiren boot (it is not an operating system its just like a layer over window ( no need to worry installing it) and then access sam file C:\ windows\system\32\config\sam open it on notepad

.BKF

By the common definition, no. It is a "disk operating" (basically any operating system booted from a disk), and it is made by Microsoft, but the similarities end there.

It is user abend.

To go back to the root (beginning) directory: cd\ To go to the directory above you: cd.. To go a directory below you: cd directoryname Of course, after you type the command, you have to hit the enter key.

The asterisk or is used a wildcard to represent any amount of characters. It can be used to represent all or part of something. When it comes to files, *.* represents files of any name and any extension. You can also use it where you have part of the name you want, like if you want to find names that begin with particular letters like this where it takes anything that starts with A and has any amount of letters after it:

A*

The command for deleting a file in DOS is DEL. If the file you are trying to delete is in the current directory, type DEL followed by the full filename. E.g. del file001.txt If there are multiple files, the wildcard * can be used. del file*.txt will delete all the text files that start with 'file' del file*.* will delete all the files that start with file. del *.txt will delete all the text files. del *.* will delete all the files in the current directory. It is possible to delete files in another directory by typing the full path and filename del c:\folder01\*.* will delete all the files in the directory c:\folder01\ DEL will not affect hidden files, but careless use of this command could damage your operating system so use with care.

A complete list of MS-DOS commands can be found here:

http://www.computerhope.com/msdos.htm#02

1) When in DOS at the C:/, type RD (remove directory)
2) hit Enter key

C:/
C:/RD
Enter

To use the archive attribute (A), back up files telling the archiving application (WinZip, etc.) to clear the archive attribute of the files it stores copies of. Whenever one of those files is modified in the future, or whenever a new file is created, its archive attribute is set. Therefore, on subsequent backups, you can have the application back up only files that have the archive attribute set (and clear the archive attribute while doing so). That way you don't waste time and drive space backing up files that haven't changed since the last time they were backed up.

If your laptop will stay on in DOS mode then update your BIOS

MS-DOS comes with every Microsoft computer, just go to start>all programs>accessories>command prompt.

You should get a book on DOS before you start entering commands.

Have Fun.

jonny lovatt

MS=Microsoft DOS = Disk Operating System. The Microsoft precursor to Windows It was loaded on to a PC via floppy disks

MS-DOS was created by Microsoft, who bought the rights to 86-DOS from Seattle Computer Products in 1981 and modified it to IBM's specifications who then released it as PC-DOS 1.0. It was also released as MS-DOS to run on PCs. MS-DOS went through eight revisions and was finally discontinued in 2000.