What are the 94 printable characters from the 128 characters of ASCII table?

[yudi v]

Hi all,

The 94 printable characters from the first 128 characters of the ASCII table
are the the ones with Hex Codes 0x20 to 0x7E. Is this right?

[Hiisi]

On 25 July 2011 03:26, yudi v  wrote:
> Hi all,
>
> The 94 printable characters from the first 128 characters of the ASCII table
> are the the ones with Hex Codes 0x20 to 0x7E. Is this right?
> --
> Kind regards,
> Yudi

Is it your home work?
http://en.wikipedia.org/wiki/Ascii#ASCII_printable_characters

[yudi v]

No it's not my homework, just curious.

I looked at that link before posting.

what confused me was the DEL key code. Usually the first 32 characters are
control characters but the wiki article clubs DEL with the control
characters where as it's assigned the last code in the table. That's after
the printable characters.
That's why I posted here to get a confirmation.
On Mon, Jul 25, 2011 at 2:20 PM, Hiisi  wrote:
> On 25 July 2011 03:26, yudi v  wrote:
> > Hi all,
> >
> > The 94 printable characters from the first 128 characters of the ASCII
>
> table
> > are the the ones with Hex Codes 0x20 to 0x7E. Is this right?
> >
> > Kind regards,
> > Yudi
>
> Is it your home work?
> http://en.wikipedia.org/wiki/Ascii#ASCII_printable_characters
> --
> Hiisi.
> Registered Linux User #487982. Be counted at: http://counter.li.org/
> --
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[Gregory Woodbury]

On Mon, Jul 25, 2011 at 12:52 AM, yudi v  wrote:
> No it's not my homework, just curious.
>
> I looked at that link before posting.
>
> what confused me was the DEL key code. Usually the first 32 characters are
> control characters but the wiki article clubs DEL with the control
> characters where as it's assigned the last code in the table. That's after
> the printable characters.
> That's why I posted here to get a confirmation.

It's history. The DEL code was all holes punched in paper tape (8-level)
that was used to RUBOUT a character in error.
Teletype and papertape systems were programmed to ignore the 0xFF code.
When ASCII was formalized, the code for DEL
was firmly in use as a control character and papertape was still in use.
The various other "control" codes were used for various
esoteric paper tape storage methodologies and later for 8-bit wide magnetic
tape systems.

Thanks for the nostalgia trip.

[James McKenzie]

On 7/24/11 10:41 PM, Gregory Woodbury wrote:
> On Mon, Jul 25, 2011 at 12:52 AM, yudi v <[e-mail] 
> > wrote:
> No it's not my homework, just curious.
> I looked at that link before posting.
> what confused me was the DEL key code. Usually the first 32
> characters are control characters but the wiki article clubs DEL
> with the control characters where as it's assigned the last code
> in the table. That's after the printable characters.
> That's why I posted here to get a confirmation.
>
>
> It's history. The DEL code was all holes punched in paper tape 
> (8-level) that was used to RUBOUT a character in error.
> Teletype and papertape systems were programmed to ignore the 0xFF 
> code.  When ASCII was formalized, the code for DEL
> was firmly in use as a control character and papertape was still in 
> use.  The various other "control" codes were used for various
> esoteric paper tape storage methodologies and later for 8-bit wide 
> magnetic tape systems.

And it was carried over to 8 bit tape as well as BAUDOT (sp) code tape.  
Great thing too.  It was also used on punch cards.

Yep, I was around in those days and did a lot with paper tape and an 
HP-3000 BASIC computer.

And one of the ways to create that code today is to use the SHIFT + 
BACKSPACE combination in PuTTY, at least the way I configure it.

James

[James McKenzie]

On Sun, Jul 24, 2011 at 9:52 PM, yudi v  wrote:
> No it's not my homework, just curious.
>
> I looked at that link before posting.
>
> what confused me was the DEL key code. Usually the first 32 characters are
> control characters but the wiki article clubs DEL with the control
> characters where as it's assigned the last code in the table. That's after
> the printable characters.
> That's why I posted here to get a confirmation.

The DEL character is considered a control character and is usually
created through a SHIFT+BACKSPACE.

James