dev-cpp-users

Re: [Dev-C++] Question about bit representation

[William Mc C. <WIL...@ms...>]

I've worked on all IBM hardware from 1401 through 3090 machine's. Which m=
achine has a 9 bit byte? =20

I really don't think there ever was a machine that handled 9 bit bytes.

----- Original Message -----
From: Per Westermark
Sent: Monday, July 07, 2003 6:18 AM
To: Ioannis Vranos
Cc: Dev-C++ Mailing List
Subject: Re: [Dev-C++] Question about bit representation

I'm not sure if a byte by definition may be anything but 8 bit.

However, at least IBM have old irons with 9-bit characters. I assume that
they are using own-defined floating point data too.

Re: [Dev-C++] Question about bit representation

[Per W. <pw...@ia...>]

It was a very long time since I read about ancient IBM machines, but I
think the 7090 had it. I'm a bit unsure about the 7030. I have seen
references to both 8-bit and 9-bit characters.

Other machines with support for 9-bit bytes are
PDP-10
Univac

Of course several of these machines could support variable bit-vector
sizes, allowing for other character sizes too, such as 6- or 8-bit.

/Per W

On Mon, 7 Jul 2003, William Mc Coy wrote:

> I've worked on all IBM hardware from 1401 through 3090 machine's. Which machine has a 9 bit byte?
>
> I really don't think there ever was a machine that handled 9 bit bytes.
>
> ----- Original Message -----
> From: Per Westermark
> Sent: Monday, July 07, 2003 6:18 AM
> To: Ioannis Vranos
> Cc: Dev-C++ Mailing List
> Subject: Re: [Dev-C++] Question about bit representation
>
> I'm not sure if a byte by definition may be anything but 8 bit.
>
> However, at least IBM have old irons with 9-bit characters. I assume that
> they are using own-defined floating point data too.
>