Re: Old cassette tape storage

"Andy Leighton" <andyl@[EMAIL PROTECTED]
> wrote
> On Tue, 04 Mar 2008 22:55:07 -0600,
>          Richard Todd <rmtodd@[EMAIL PROTECTED]
> wrote:
>> "Karl Johanson" <karljohanson@[EMAIL PROTECTED]
> writes:
>>
>>> How many bits did the early computer cassette tapes hold?
>>
>> Depends on the machine, and the cassette.  TRS-80 Model I cassettes
>> were 500 bits/sec, IIRC.  I don't think any of the other computers of 
>> that
>> era got much over 2kbits/sec on a cassette, so that should give you a 
>> rough
>> estimate.
>
> The ZX Spectrum used 1500 baud although later quick loaders tripled
> that at least.  At 4500 baud a good 120 minute cassette tape would 
> hold
> approx. 3.9 Mb.

Thanks to both. My Coleco Adam used 60 minute cassetes and could hold 
256 k, I was wondering if that was high or low compared to others at the 
time.

Karl Johanson