Bitsavers size

Mike Stein mhs.stein at gmail.com
Fri Apr 21 00:26:59 CDT 2017


----- Original Message ----- 
From: "Tony Duell via cctalk" <cctalk at classiccmp.org>
To: <rob at jarratt.me.uk>
Cc: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>; "Shoppa, Tim" <tshoppa at wmata.com>
Sent: Thursday, April 20, 2017 11:48 PM
Subject: Re: Bitsavers size


> On Thu, Apr 20, 2017 at 8:27 PM, Rob Jarratt
> <robert.jarratt at ntlworld.com> wrote:
>>
>>
>>> > The bitsavers archive is 267 Gbytes.
>>> >
>>> > So at 4.7G per DVD, it comes out to almost 60 DVD's.
>>>
>>> That is not totally ridiculous....
>>>
>>> Now, if I want bitsavers on paper tape....
>>>
>>> >
>>
>> My back of the envelope calculation comes to approximately
>> 4 million miles of paper tape.
> 
> I think you're out by a factor of 10.... 267*10^9 bytes, divide by 10 as
> there are 10 bytes to the inch on paper tape, and convert to miles. I
> get just over 400,000 miles.
> 
> My rule of thumb is that a full reel of 1" paper tape is 100k bytes
> So 10 for a megabyte
> 10000 for a gigabyte
> 2,670,000 for all of bitsavers. Perhaps nearer 3 million as it's an
> approximation....
> 
> -tony
----
I've got a couple of reels that I can contribute if you don't have quite enough...

;-)


More information about the cctalk mailing list