DOS Use FAQ q&a answer

Many netizens in the message, forum or mail to ask a lot of questions about the use of DOS, now I have a part of them sorted out, into a FAQ column, welcome to read. Content is increasing.

Note: You can read the contents of "DOS use" and other columns to get more knowledge.

Frequently asked Questions (FAQ):

Q: Why use DOS?

A: DOS is a powerful and practical operating system with a large number of applications that can perform a variety of functions. DOS is very fast and efficient, it can do many other operating systems do not do or do bad things, and enable users to master other operating systems (such as windows, etc.) of the general user does not master a variety of http://www.aliyun.com/zixun/ Aggregation/22929.html "> Basic knowledge to more flexible use of computers and handling a variety of operations, so it has a large number of users and enthusiasts. The DOS era can be divided into two stages, namely the old DOS ERA and the new DOS era, in which the former's main feature is "Innocence", the latter is the main feature of "Free and open". Everybody knows "open source code" movement! With its popularity, free openness has become a new trend in software development, not in closed systems such as Windows. Like FreeDOS, Linux and so is the free operating system representative, and has been a great development, the new DOS era was born. In the new DOS era, especially in foreign countries, the new DOS software is constantly updated and launched, the quality is very high, the specific visible "dos in recent years of development." It is also valuable to use DOS, especially for users and enthusiasts of DOS, and for those who like to be free and open and constantly exploring.

Q: How do I use a USB device in DOS?

A: As mentioned in the "DOS use" section of this site, USB device drivers are required to use USB devices in DOS. For example, OHCI/UHCI can drive USB mouse and other devices, USB_CD can drive USB drives and other devices, Duse can drive USB hard drive, optical drive, floppy drive and other devices, and Usb4dos can drive other USB devices (but Usb4dos is not freeware). The above software can be found in the "driver" of this site. Moreover, the "DOS article" column also has the above Duse driver's detailed introduction, everybody may go to see. In addition, the newer motherboard BIOS also provides some DOS to use USB devices and the ability to start USB devices.

Q: How to deal with the so-called hard drive "logic lock"?

A: You know, if you have a "logical lock" (or "logic bomb") on your hard disk, the other boot devices (such as floppy disks, CDs, or other hard disks) that have MS-DOS installed on your computer will not be enabled to do the next step. In fact, the so-called "logic lock" is the use of Microsoft's MS-DOS operating system Io.sys files made of a mistake, and other DOS, such as IBM's Pc-dos, as well as dr-dos,freedos,rom-dos, and so there is no such problem. Therefore, when the hard drive is "logic lock" lock, use the above non-MS DOS boot disk (all can be downloaded in the "DOS system") boot system, and then execute the FDISK command to restore normal hard disk, very convenient. Of course, there are some very troublesome and more dangerous methods, such as hot plug, DM low lattice, etc., are based on MS-DOS system methods, is not practical.

Q: Is there a DOS operating system that supports long filenames locally?

A: Of course, like Rom-dos 7.10. Rom-dos is a fairly good DOS operating system that not only fully supports long filenames, FAT32 partitions/large hard drives, and TCP/IP protocols and other network components, but is fully compatible with the most popular MS-DOS, especially the Rom-dos 7.10 and MS-DOS 7.10 comparisons, the latter commands can be used directly in the former, not only the same version number (that is, all 7.10 versions) so that there will be no DOS version number of conflicts, and their various commands support FAT32 and long file names, so these aspects of security and stability do not worry. Therefore, everyone's system has a rom-dos is very good, especially the production of a Rom-dos 7.10 boot disk, so you can enjoy the benefits of Rom-dos. And unlike MS-DOS, Rom-dos does not seem to have a so-called "logic lock" (see the answer to the question above). Rom-dos 7.10 Registration version of the boot disk can be downloaded from the "DOS system" of this station. In addition, the corresponding functions in FreeDOS are also under development.

Q: Is dos a single task operating system? Can I multitask?

A: The so-called "single task system" means that this system does not support multitasking, and can only perform one task at a time. There are two ways to Dos, one is local real mode, the other is protection mode. The DOS in real mode is a single task environment, and in this way it is usually only possible to use memory within 1M. In the protected mode of DOS, not only can access to all memory, and multitasking is fully attainable (as win3.x/9x achieved, because win3.x/9x is a large protection mode of the DOS software). Since DOS does not support multitasking in its usual real mode, the efficiency of processing tasks in this state is naturally lower than that of multitasking operating systems, and security can naturally not be compared to multitasking. On the contrary, the protection mode of the DOS program is very powerful, can accomplish multitasking and other advanced functions and operations, but it is relatively much more difficult to write. However, in recent years, in addition to Windows, there are many DOS protection mode of the multi-task graphics operating environment, such as seal, Qube, DESQview, etc., can be downloaded from the "system enhancement" of the site.

Q. How do I install and run the MS-DOS 7.10 full direct run version?

A: MS-DOS 7.10 is a very good operating system, not only the function or practicality, it has a great improvement on the basis of MS-DOS 6.x, please see the "DOS article" section of the relevant articles in detail. The MS-DOS 7.10 full direct run version is a combination of MS-DOS 7.10 's basic tools and their supplemental tools (such as Dosshell, MSD, etc.) and can be downloaded from the "DOS system" of this site. Extract all of its contents to your hard disk and use the SYS command to transfer system files, such as executing sys. C: command), you can run the MS-DOS 7.10 full version directly after restarting the system without requiring a dedicated installation.

Q: How do I play MP3 files with the speakers in DOS?

A: dos under the MP3 file of a lot of players, such as QuickView, Mpxplay, OPENCP, damp, and even the old dosamp, but most can only be implemented with a sound card to play. To play MP3 files with speakers, you can use a full screen media software called DSS (which can be downloaded from the media software in this station) to play/record MP3 or WAV files with your sound card or PC speakers. The way to do this is to change the device in Dss.ini to the device you want to play, such as 1 sound blaster,8 is a PC speaker, and of course there are other devices, such as the ESS sound card, which you can see in its instructions. Or there is another way, is to use L3enc and other software to convert MP3 to WAV files, and then QuickView 1.x, Sbplay and other software (also found in this site) to achieve the use of PC speakers to convert the WAV file.

Q: How to play AVI, MOV, MPG, VCD, RealAudio and other multimedia formats?

A: Dos under the play AVI and MPG format of the software there are many, such as QuickView, PV, Avi4dos, Mpegone, but I recommend QuickView. Its function is quite powerful, not only can play all the above except RealAudio all formats, but also can play MP3, GIF, JPG and so on a variety of common music, image format, details in the "Media Software" and "DOS use" column to see. However, to play a VCD, please run on more than 586 computers, or you may have a similar slide effect. For DOS to play RealAudio format data and specific files, can be seen in http://members.tripod.com/~ladsoft/ra.htm.

Q: How do I extract the IMG (disk image) file?

A: There are usually two methods, one is the direct decompression method, can be used Undisk, dosimg and other tools to carry out, very convenient and quick; the other is to use the image file expansion method, that is, using tools such as hd-copy to write the disk image to the floppy disk. The latter takes a relatively long time and automatically formats the floppy disk and is inflexible. However, when making a startup disk, the latter, compared to the former, eliminates the use of the SYS command to transfer system files to the boot disk, such as executing sys. A: The process of the command.