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Did MS DOS itself ever use blinking text?


What character is the MS-DOS cursor?Why did CP/M and MS-DOS use the BIOS instead of their own drivers to access hardware?How did Windows ME “cripple” DOS?Do you need to allocate memory before you use it in MS-DOS?Where did DOS store graphics fonts?Is DOS being shipped with or as an installed OS?Were 9.2 file names possible in MS-DOS?Why did MS-DOS choose percent symbol to designate variable?Why did DOS use dollar-terminated strings?Is there a reason why MS-DOS didn't use more English words for commands?How to convert .ttf to .fnt for use with M10_SCR.COM DOS font driver






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty
margin-bottom:0;









14

















I know that it was possible to create blinking text, but did the operating system itself (I mean, in output from functions of command.com and similar executables) ever make use of blink formatting?



You'd think it would be useful for confirmations of really dangerous things like format C: and such, but perhaps also seen as "over the top" and or just not necessary.










share|improve this question





















  • 2





    It obvioulsly used a blinking cursor - That was about the amount of blinking the OS used.

    – tofro
    Apr 18 at 7:42






  • 1





    I thought the blinking cursor was a hardware function, not operating system, but I might be wrong.

    – manassehkatz
    Apr 18 at 15:07






  • 1





    @manassehkatz see this question.

    – Stephen Kitt
    Apr 18 at 17:05

















14

















I know that it was possible to create blinking text, but did the operating system itself (I mean, in output from functions of command.com and similar executables) ever make use of blink formatting?



You'd think it would be useful for confirmations of really dangerous things like format C: and such, but perhaps also seen as "over the top" and or just not necessary.










share|improve this question





















  • 2





    It obvioulsly used a blinking cursor - That was about the amount of blinking the OS used.

    – tofro
    Apr 18 at 7:42






  • 1





    I thought the blinking cursor was a hardware function, not operating system, but I might be wrong.

    – manassehkatz
    Apr 18 at 15:07






  • 1





    @manassehkatz see this question.

    – Stephen Kitt
    Apr 18 at 17:05













14












14








14








I know that it was possible to create blinking text, but did the operating system itself (I mean, in output from functions of command.com and similar executables) ever make use of blink formatting?



You'd think it would be useful for confirmations of really dangerous things like format C: and such, but perhaps also seen as "over the top" and or just not necessary.










share|improve this question














I know that it was possible to create blinking text, but did the operating system itself (I mean, in output from functions of command.com and similar executables) ever make use of blink formatting?



You'd think it would be useful for confirmations of really dangerous things like format C: and such, but perhaps also seen as "over the top" and or just not necessary.







ms-dos






share|improve this question













share|improve this question











share|improve this question




share|improve this question



share|improve this question










asked Apr 17 at 20:08









KlaymenDKKlaymenDK

4983 silver badges12 bronze badges




4983 silver badges12 bronze badges










  • 2





    It obvioulsly used a blinking cursor - That was about the amount of blinking the OS used.

    – tofro
    Apr 18 at 7:42






  • 1





    I thought the blinking cursor was a hardware function, not operating system, but I might be wrong.

    – manassehkatz
    Apr 18 at 15:07






  • 1





    @manassehkatz see this question.

    – Stephen Kitt
    Apr 18 at 17:05












  • 2





    It obvioulsly used a blinking cursor - That was about the amount of blinking the OS used.

    – tofro
    Apr 18 at 7:42






  • 1





    I thought the blinking cursor was a hardware function, not operating system, but I might be wrong.

    – manassehkatz
    Apr 18 at 15:07






  • 1





    @manassehkatz see this question.

    – Stephen Kitt
    Apr 18 at 17:05







2




2





It obvioulsly used a blinking cursor - That was about the amount of blinking the OS used.

– tofro
Apr 18 at 7:42





It obvioulsly used a blinking cursor - That was about the amount of blinking the OS used.

– tofro
Apr 18 at 7:42




1




1





I thought the blinking cursor was a hardware function, not operating system, but I might be wrong.

– manassehkatz
Apr 18 at 15:07





I thought the blinking cursor was a hardware function, not operating system, but I might be wrong.

– manassehkatz
Apr 18 at 15:07




1




1





@manassehkatz see this question.

– Stephen Kitt
Apr 18 at 17:05





@manassehkatz see this question.

– Stephen Kitt
Apr 18 at 17:05










2 Answers
2






active

oldest

votes


















23



















[...] did the operating system itself [...] ever make use of blink formatting?




No.



MS-DOS was, at the core, machine agnostic. It only used the most basic features provided by the BIOS. While INT 10h function 09h would have provided the ability to set attributes (via BL), its meaning already varies across video cards offered by IBM and even more so with third party cards or non IBM machines. Not to mention that MS-DOS was intended to work with terminals as well, where attributes are even more diverse.



MS-DOS only used the most basic characters for output control:



  • CR

  • LF

  • FF (clear screen)

  • BEL





share|improve this answer























  • 7





    MS-DOS 2.0 to 5.x included a driver called ANSI.SYS which provided support for escape codes to control character attributes; I'm pretty certain escape-leftbracket-5m was supported as a means of enabling blinking, along with ...[1m for bright text, ...[30m to ...[37m for foreground color, etc.

    – supercat
    Apr 17 at 21:41






  • 11





    @supercat Jup, another optional add-on, nothing a cor OS can rely on.

    – Raffzahn
    Apr 17 at 22:08






  • 8





    @Raffzahn however COMMAND.COM does check for ANSI.SYS and will use it if it’s available, e.g. for CLS.

    – Stephen Kitt
    Apr 18 at 11:35







  • 1





    Can't imagine that working well with an actual printer, either.

    – Lightness Races in Orbit
    Apr 18 at 17:20


















7



















Did MS DOS itself ever use blinking text?




What exactly does "itself" mean?



The OS kernel (io.sys or msdos.sys) would of course not do anything which is not requested by the currently running program (e.g. command.com); the kernel cannot know if some text message has the meaning: "Highly critical" or "Operation successful" so the request to change the text attributes must come from the program.



In MS-DOS consists of multiple programs. Most of them just wrote out text to the console while the text cursor was only moved implicitly because of printing the text.



However, there were also some "GUI-like" programs (fdisk, edit, GW or Q Basic, scandisk, the DOS-Shell and some backup program) being part of MS-DOS, which modified the content of the the entire text screen and explicitly moved the text cursor to certain positions.



As far as I know, the first type of programs (only printing text) never changed the text attributes. Neither color, nor blinking, nor bold. If the user selected blinking green text on blue background using ansi.sys (see supercat's comment), all of these programs would output all text green and blinking on blue background. If the user did not use ansi.sys, all text was gray, not blinking on black background.



The "GUI-like" programs used different screen attributes (such as different colors, bold or blinking). fdisk for example used bold text; edit used different colors. I'm not sure if one of these programs used blinking text.






share|improve this answer





















  • 1





    I have vague recollections of an MS-DOS pack-in program (it could have even been fdisk) that did use blinking text as a warning to the user before erasing all data on-disk.

    – Dai
    Apr 18 at 14:26







  • 1





    I have similar very vague recollections, but that it was one of the OEM-added programs, possibly fxpark or fxprep.

    – JdeBP
    Apr 18 at 17:57












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2 Answers
2






active

oldest

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2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









23



















[...] did the operating system itself [...] ever make use of blink formatting?




No.



MS-DOS was, at the core, machine agnostic. It only used the most basic features provided by the BIOS. While INT 10h function 09h would have provided the ability to set attributes (via BL), its meaning already varies across video cards offered by IBM and even more so with third party cards or non IBM machines. Not to mention that MS-DOS was intended to work with terminals as well, where attributes are even more diverse.



MS-DOS only used the most basic characters for output control:



  • CR

  • LF

  • FF (clear screen)

  • BEL





share|improve this answer























  • 7





    MS-DOS 2.0 to 5.x included a driver called ANSI.SYS which provided support for escape codes to control character attributes; I'm pretty certain escape-leftbracket-5m was supported as a means of enabling blinking, along with ...[1m for bright text, ...[30m to ...[37m for foreground color, etc.

    – supercat
    Apr 17 at 21:41






  • 11





    @supercat Jup, another optional add-on, nothing a cor OS can rely on.

    – Raffzahn
    Apr 17 at 22:08






  • 8





    @Raffzahn however COMMAND.COM does check for ANSI.SYS and will use it if it’s available, e.g. for CLS.

    – Stephen Kitt
    Apr 18 at 11:35







  • 1





    Can't imagine that working well with an actual printer, either.

    – Lightness Races in Orbit
    Apr 18 at 17:20















23



















[...] did the operating system itself [...] ever make use of blink formatting?




No.



MS-DOS was, at the core, machine agnostic. It only used the most basic features provided by the BIOS. While INT 10h function 09h would have provided the ability to set attributes (via BL), its meaning already varies across video cards offered by IBM and even more so with third party cards or non IBM machines. Not to mention that MS-DOS was intended to work with terminals as well, where attributes are even more diverse.



MS-DOS only used the most basic characters for output control:



  • CR

  • LF

  • FF (clear screen)

  • BEL





share|improve this answer























  • 7





    MS-DOS 2.0 to 5.x included a driver called ANSI.SYS which provided support for escape codes to control character attributes; I'm pretty certain escape-leftbracket-5m was supported as a means of enabling blinking, along with ...[1m for bright text, ...[30m to ...[37m for foreground color, etc.

    – supercat
    Apr 17 at 21:41






  • 11





    @supercat Jup, another optional add-on, nothing a cor OS can rely on.

    – Raffzahn
    Apr 17 at 22:08






  • 8





    @Raffzahn however COMMAND.COM does check for ANSI.SYS and will use it if it’s available, e.g. for CLS.

    – Stephen Kitt
    Apr 18 at 11:35







  • 1





    Can't imagine that working well with an actual printer, either.

    – Lightness Races in Orbit
    Apr 18 at 17:20













23














23










23










[...] did the operating system itself [...] ever make use of blink formatting?




No.



MS-DOS was, at the core, machine agnostic. It only used the most basic features provided by the BIOS. While INT 10h function 09h would have provided the ability to set attributes (via BL), its meaning already varies across video cards offered by IBM and even more so with third party cards or non IBM machines. Not to mention that MS-DOS was intended to work with terminals as well, where attributes are even more diverse.



MS-DOS only used the most basic characters for output control:



  • CR

  • LF

  • FF (clear screen)

  • BEL





share|improve this answer

















[...] did the operating system itself [...] ever make use of blink formatting?




No.



MS-DOS was, at the core, machine agnostic. It only used the most basic features provided by the BIOS. While INT 10h function 09h would have provided the ability to set attributes (via BL), its meaning already varies across video cards offered by IBM and even more so with third party cards or non IBM machines. Not to mention that MS-DOS was intended to work with terminals as well, where attributes are even more diverse.



MS-DOS only used the most basic characters for output control:



  • CR

  • LF

  • FF (clear screen)

  • BEL






share|improve this answer















share|improve this answer




share|improve this answer



share|improve this answer








edited Apr 18 at 11:59









john_e

2,6047 silver badges20 bronze badges




2,6047 silver badges20 bronze badges










answered Apr 17 at 21:29









RaffzahnRaffzahn

71.6k8 gold badges178 silver badges298 bronze badges




71.6k8 gold badges178 silver badges298 bronze badges










  • 7





    MS-DOS 2.0 to 5.x included a driver called ANSI.SYS which provided support for escape codes to control character attributes; I'm pretty certain escape-leftbracket-5m was supported as a means of enabling blinking, along with ...[1m for bright text, ...[30m to ...[37m for foreground color, etc.

    – supercat
    Apr 17 at 21:41






  • 11





    @supercat Jup, another optional add-on, nothing a cor OS can rely on.

    – Raffzahn
    Apr 17 at 22:08






  • 8





    @Raffzahn however COMMAND.COM does check for ANSI.SYS and will use it if it’s available, e.g. for CLS.

    – Stephen Kitt
    Apr 18 at 11:35







  • 1





    Can't imagine that working well with an actual printer, either.

    – Lightness Races in Orbit
    Apr 18 at 17:20












  • 7





    MS-DOS 2.0 to 5.x included a driver called ANSI.SYS which provided support for escape codes to control character attributes; I'm pretty certain escape-leftbracket-5m was supported as a means of enabling blinking, along with ...[1m for bright text, ...[30m to ...[37m for foreground color, etc.

    – supercat
    Apr 17 at 21:41






  • 11





    @supercat Jup, another optional add-on, nothing a cor OS can rely on.

    – Raffzahn
    Apr 17 at 22:08






  • 8





    @Raffzahn however COMMAND.COM does check for ANSI.SYS and will use it if it’s available, e.g. for CLS.

    – Stephen Kitt
    Apr 18 at 11:35







  • 1





    Can't imagine that working well with an actual printer, either.

    – Lightness Races in Orbit
    Apr 18 at 17:20







7




7





MS-DOS 2.0 to 5.x included a driver called ANSI.SYS which provided support for escape codes to control character attributes; I'm pretty certain escape-leftbracket-5m was supported as a means of enabling blinking, along with ...[1m for bright text, ...[30m to ...[37m for foreground color, etc.

– supercat
Apr 17 at 21:41





MS-DOS 2.0 to 5.x included a driver called ANSI.SYS which provided support for escape codes to control character attributes; I'm pretty certain escape-leftbracket-5m was supported as a means of enabling blinking, along with ...[1m for bright text, ...[30m to ...[37m for foreground color, etc.

– supercat
Apr 17 at 21:41




11




11





@supercat Jup, another optional add-on, nothing a cor OS can rely on.

– Raffzahn
Apr 17 at 22:08





@supercat Jup, another optional add-on, nothing a cor OS can rely on.

– Raffzahn
Apr 17 at 22:08




8




8





@Raffzahn however COMMAND.COM does check for ANSI.SYS and will use it if it’s available, e.g. for CLS.

– Stephen Kitt
Apr 18 at 11:35






@Raffzahn however COMMAND.COM does check for ANSI.SYS and will use it if it’s available, e.g. for CLS.

– Stephen Kitt
Apr 18 at 11:35





1




1





Can't imagine that working well with an actual printer, either.

– Lightness Races in Orbit
Apr 18 at 17:20





Can't imagine that working well with an actual printer, either.

– Lightness Races in Orbit
Apr 18 at 17:20













7



















Did MS DOS itself ever use blinking text?




What exactly does "itself" mean?



The OS kernel (io.sys or msdos.sys) would of course not do anything which is not requested by the currently running program (e.g. command.com); the kernel cannot know if some text message has the meaning: "Highly critical" or "Operation successful" so the request to change the text attributes must come from the program.



In MS-DOS consists of multiple programs. Most of them just wrote out text to the console while the text cursor was only moved implicitly because of printing the text.



However, there were also some "GUI-like" programs (fdisk, edit, GW or Q Basic, scandisk, the DOS-Shell and some backup program) being part of MS-DOS, which modified the content of the the entire text screen and explicitly moved the text cursor to certain positions.



As far as I know, the first type of programs (only printing text) never changed the text attributes. Neither color, nor blinking, nor bold. If the user selected blinking green text on blue background using ansi.sys (see supercat's comment), all of these programs would output all text green and blinking on blue background. If the user did not use ansi.sys, all text was gray, not blinking on black background.



The "GUI-like" programs used different screen attributes (such as different colors, bold or blinking). fdisk for example used bold text; edit used different colors. I'm not sure if one of these programs used blinking text.






share|improve this answer





















  • 1





    I have vague recollections of an MS-DOS pack-in program (it could have even been fdisk) that did use blinking text as a warning to the user before erasing all data on-disk.

    – Dai
    Apr 18 at 14:26







  • 1





    I have similar very vague recollections, but that it was one of the OEM-added programs, possibly fxpark or fxprep.

    – JdeBP
    Apr 18 at 17:57















7



















Did MS DOS itself ever use blinking text?




What exactly does "itself" mean?



The OS kernel (io.sys or msdos.sys) would of course not do anything which is not requested by the currently running program (e.g. command.com); the kernel cannot know if some text message has the meaning: "Highly critical" or "Operation successful" so the request to change the text attributes must come from the program.



In MS-DOS consists of multiple programs. Most of them just wrote out text to the console while the text cursor was only moved implicitly because of printing the text.



However, there were also some "GUI-like" programs (fdisk, edit, GW or Q Basic, scandisk, the DOS-Shell and some backup program) being part of MS-DOS, which modified the content of the the entire text screen and explicitly moved the text cursor to certain positions.



As far as I know, the first type of programs (only printing text) never changed the text attributes. Neither color, nor blinking, nor bold. If the user selected blinking green text on blue background using ansi.sys (see supercat's comment), all of these programs would output all text green and blinking on blue background. If the user did not use ansi.sys, all text was gray, not blinking on black background.



The "GUI-like" programs used different screen attributes (such as different colors, bold or blinking). fdisk for example used bold text; edit used different colors. I'm not sure if one of these programs used blinking text.






share|improve this answer





















  • 1





    I have vague recollections of an MS-DOS pack-in program (it could have even been fdisk) that did use blinking text as a warning to the user before erasing all data on-disk.

    – Dai
    Apr 18 at 14:26







  • 1





    I have similar very vague recollections, but that it was one of the OEM-added programs, possibly fxpark or fxprep.

    – JdeBP
    Apr 18 at 17:57













7














7










7










Did MS DOS itself ever use blinking text?




What exactly does "itself" mean?



The OS kernel (io.sys or msdos.sys) would of course not do anything which is not requested by the currently running program (e.g. command.com); the kernel cannot know if some text message has the meaning: "Highly critical" or "Operation successful" so the request to change the text attributes must come from the program.



In MS-DOS consists of multiple programs. Most of them just wrote out text to the console while the text cursor was only moved implicitly because of printing the text.



However, there were also some "GUI-like" programs (fdisk, edit, GW or Q Basic, scandisk, the DOS-Shell and some backup program) being part of MS-DOS, which modified the content of the the entire text screen and explicitly moved the text cursor to certain positions.



As far as I know, the first type of programs (only printing text) never changed the text attributes. Neither color, nor blinking, nor bold. If the user selected blinking green text on blue background using ansi.sys (see supercat's comment), all of these programs would output all text green and blinking on blue background. If the user did not use ansi.sys, all text was gray, not blinking on black background.



The "GUI-like" programs used different screen attributes (such as different colors, bold or blinking). fdisk for example used bold text; edit used different colors. I'm not sure if one of these programs used blinking text.






share|improve this answer















Did MS DOS itself ever use blinking text?




What exactly does "itself" mean?



The OS kernel (io.sys or msdos.sys) would of course not do anything which is not requested by the currently running program (e.g. command.com); the kernel cannot know if some text message has the meaning: "Highly critical" or "Operation successful" so the request to change the text attributes must come from the program.



In MS-DOS consists of multiple programs. Most of them just wrote out text to the console while the text cursor was only moved implicitly because of printing the text.



However, there were also some "GUI-like" programs (fdisk, edit, GW or Q Basic, scandisk, the DOS-Shell and some backup program) being part of MS-DOS, which modified the content of the the entire text screen and explicitly moved the text cursor to certain positions.



As far as I know, the first type of programs (only printing text) never changed the text attributes. Neither color, nor blinking, nor bold. If the user selected blinking green text on blue background using ansi.sys (see supercat's comment), all of these programs would output all text green and blinking on blue background. If the user did not use ansi.sys, all text was gray, not blinking on black background.



The "GUI-like" programs used different screen attributes (such as different colors, bold or blinking). fdisk for example used bold text; edit used different colors. I'm not sure if one of these programs used blinking text.







share|improve this answer













share|improve this answer




share|improve this answer



share|improve this answer










answered Apr 18 at 6:39









Martin RosenauMartin Rosenau

1,4611 gold badge4 silver badges11 bronze badges




1,4611 gold badge4 silver badges11 bronze badges










  • 1





    I have vague recollections of an MS-DOS pack-in program (it could have even been fdisk) that did use blinking text as a warning to the user before erasing all data on-disk.

    – Dai
    Apr 18 at 14:26







  • 1





    I have similar very vague recollections, but that it was one of the OEM-added programs, possibly fxpark or fxprep.

    – JdeBP
    Apr 18 at 17:57












  • 1





    I have vague recollections of an MS-DOS pack-in program (it could have even been fdisk) that did use blinking text as a warning to the user before erasing all data on-disk.

    – Dai
    Apr 18 at 14:26







  • 1





    I have similar very vague recollections, but that it was one of the OEM-added programs, possibly fxpark or fxprep.

    – JdeBP
    Apr 18 at 17:57







1




1





I have vague recollections of an MS-DOS pack-in program (it could have even been fdisk) that did use blinking text as a warning to the user before erasing all data on-disk.

– Dai
Apr 18 at 14:26






I have vague recollections of an MS-DOS pack-in program (it could have even been fdisk) that did use blinking text as a warning to the user before erasing all data on-disk.

– Dai
Apr 18 at 14:26





1




1





I have similar very vague recollections, but that it was one of the OEM-added programs, possibly fxpark or fxprep.

– JdeBP
Apr 18 at 17:57





I have similar very vague recollections, but that it was one of the OEM-added programs, possibly fxpark or fxprep.

– JdeBP
Apr 18 at 17:57


















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