Bar Code was another IBM innovation.

Carlos Bodra
IBM zEnterprise Certified
São Paulo – SP – Brazil


-----Mensagem original-----
De: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> Em nome de Lennie 
Bradshaw
Enviada em: sexta-feira, 25 de abril de 2025 09:34
Para: IBM-MAIN@LISTSERV.UA.EDU
Assunto: Re: What has IBM ever done for us? (probably more than I know)

A few extra ideas,

Virtualisation and VM.
Integrity statement.
DES encryption.
Availability figures - 99.999%
Sysplex

Lennie
-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of 
Rupert Reynolds
Sent: 25 April 2025 13:14
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: What has IBM ever done for us? (probably more than I know)

Since it's Friday, would anyone care to contribute an opinion, or just an item 
for the list?

(I've been asked to give an informal talk to a small group of enthusiasts.
The idea is to look at where we've come from, where we are now, and take a few 
guesses at what's next).

Off the top of my head, IBM either innovated, or helped to promote in a big 
way, things we take for granted :-

. 1401, the first big stored program computer . 1403 a fast chain printer ' 
FORTRAN, which I think was one of the first high level language compilers . 
s/360 (and family) with its flexible & compatible architecture . Hard disc 
drives (was RAMAC the first?) . DRAM . byte-addressable storage (rather than 
only being able to address
word-by-word)
. 8 bits in a byte
. word sizes a power of 2
. long term compatibility, where a 1970s program will still run and 
assemble/compile . 3270 data stream protocol, an efficient way to drive 
displays without flooding the network with unnecessary data, and still used 
today in tn3270.
. the ATM (Automated Teller Machine, for the avoidance of doubt!). Lloyds Bank 
asked, and IBM delivered it (in UK, I think)

Have I blundered?

Roops :-)

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