From: scj@yaccman.com (scj@yaccman.com)
Subject: [TUHS] History repeating itself (was: Unix v6 problem with /tmp)
Date: Sat, 30 Jul 2016 16:50:56 -0700 [thread overview]
Message-ID: <7f91cda35ceb8c56e22764b18cc282d1.squirrel@webmail.yaccman.com> (raw)
In-Reply-To: <20160730232803.GN86883@eureka.lemis.com>
A "standard" 80-column punched card held 80 12-bit columns, or 120 bytes.
1000 cards stacked up took roughly a foot, to get 120,000 bytes
So to store a megabyte would take about 8 1/3 feet of cards.
A gigabyte would be over a mile and a half high.
A terabyte would be over 1500 miles high (half the width of the USA)
A petabyte stack would be over six times the distance to the moon...
Exponential growth may seem like business as normal today, but in reality,
it boggles the mind...
Steve
>>
>> Of course, those cards take time to fill and empty, which should be
>> part of the bandwidth computation.
next prev parent reply other threads:[~2016-07-30 23:50 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-27 20:28 [TUHS] Unix v6 problem with /tmp Mark Longridge
2016-07-27 20:31 ` William Pechter
2016-07-27 20:57 ` Clem Cole
2016-07-27 21:01 ` Clem Cole
2016-07-27 21:10 ` William Pechter
2016-07-28 0:49 ` Clem cole
2016-07-28 1:03 ` William Pechter
2016-07-28 11:23 ` [TUHS] History repeating itself (was: Unix v6 problem with /tmp) Michael Kjörling
2016-07-28 12:18 ` Tony Finch
2016-07-28 13:57 ` John Cowan
2016-07-30 7:56 ` Greg 'groggy' Lehey
2016-07-30 11:41 ` William Cheswick
2016-07-30 23:28 ` Greg 'groggy' Lehey
2016-07-30 23:50 ` scj [this message]
2016-08-01 11:36 ` Tony Finch
2016-07-30 14:15 ` John Cowan
2016-07-30 15:30 ` [TUHS] History repeating itself Michael Kjörling
2016-07-28 1:03 ` [TUHS] Unix v6 problem with /tmp Clem cole
2016-07-28 23:16 ` [TUHS] environments/universes (was: Unix v6 problem with /tmp) Sven Mascheck
2016-07-29 3:05 ` arnold
2016-07-29 14:14 ` Clem Cole
2016-07-29 13:55 ` Clem Cole
2016-07-31 4:25 [TUHS] History repeating itself " Rudi Blom
2016-08-01 1:08 ` John Cowan
2016-08-01 7:14 ` Rudi Blom
2016-08-01 17:11 ` scj
2016-08-01 18:32 ` Clem Cole
2016-08-02 22:38 ` Dave Horsfall
2016-08-03 11:53 Norman Wilson
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