26 May
2005
26 May
'05
2:51 p.m.
Still have a partial copy of the handbook here for a GI (general
instruments) 500FR 14 inch single platter HDD- 16 megaBITS capacity,
platter spun up to 3600 rpm by a 'small' 1/2 HP motor. Dates on the
drawings range from early 1971 to 1974. The platter is still
here-makes a nice gong. The box this was in was std rack width and
about 8-10 inches high-and nearly three feet front to rear!
DaveB, NZ
----- Original Message -----
From: "Eric Smith" <eric at brouhaha.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Friday, May 27, 2005 9:01 AM
Subject: Re: Remembering RAMAC
spare40tire wrote:
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IBM did have a drum based machine before the 305
Ramac.
I believe the model # was 650 and was also known as a 650 Ramac.
I don't think it was known as a RAMAC. Maybe some people called it
that *after* the introduction of the 305 and 350.
I can't remember any hard disks greater then
50MB being available
even
into the late 1980's.
IBM 1302, 87 MB, introduced September 1963
IBM 3330, 100 MB removable packs, introduced June 1970, expanded to
200 MB
pack capacity in 1973
IBM 3340, first "Winchester" drive (sealed HDA), used 35 and 70 MB
removable IBM 3348 "Data Modules", March 1973
DEC RP04 (manfactured by ISS/Sperry), 120 MB removable pack, mid
1970s
Fujitsu Eagle M2351 14-inch hard drive, 380 MB, early 1980s
Maxtor XT1065 67MB 5.25-inch hard drives, 1983.
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25/05/2005