3270 is 40 years old and still in use as the most common interface to z/OS for programmers and systems programmers.
Maybe not such a bad design choice? Certainly not stupid. How many of us have ever used the various web interfaces to z/OS for any length of time? Reverting to tried and trusted 3270 is the usual end. Regards, Mike Wawiorko -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of Chris Mason Sent: 10 November 2011 19:08 To: IBM-MAIN@bama.ua.edu Subject: Re: TSO SCREENSIZE John > 3274 3271 > STUPID >From the perspective of the new millennium. At the time (1970 approximately) >I'm sure it was a sensible design choice. Chris Mason On Thu, 10 Nov 2011 11:48:30 -0600, McKown, John <john.mck...@healthmarkets.com> wrote: > ... > >Remember how old the 3270 architecture is. Wikipedia says about 1972. Think 1 >Mhz 8080 as "top of the line" micro processor. The original 3277 and its >controllers were STUPID. Rather than put a more powerful processor in the >controller, IBM decided to offload the "complicated" function of calculating >the position of the data into the host. Made of discrete transistors and >resistors! Very primitive. So, the host just sent a simple to understand >"buffer address" (a single number) to the 3274. It basically just starting >stuffing data characters at that location in a RAM buffer. More power == most >cost == fewer purchases. Much like some of the "krud" in z/OS today due to >"short sighted" architects who were worried about memory and slow CPUs and >expensive DASD. > >The answer to these problems is obvious: Convert from archaic z/OS to modern >Windows 8! At least that's what a lot of "Windows weenies" around here are >saying. Over and over and over and over. "Better! Faster!! Cheaper!!!" is >their cry. Anything z/OS can do, they state can be done using Windows and at >lower TCO. Herr Gobbles would be proud of them. > >-- >John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html This e-mail and any attachments are confidential and intended solely for the addressee and may also be privileged or exempt from disclosure under applicable law. If you are not the addressee, or have received this e-mail in error, please notify the sender immediately, delete it from your system and do not copy, disclose or otherwise act upon any part of this e-mail or its attachments. Internet communications are not guaranteed to be secure or virus-free. The Barclays Group does not accept responsibility for any loss arising from unauthorised access to, or interference with, any Internet communications by any third party, or from the transmission of any viruses. Replies to this e-mail may be monitored by the Barclays Group for operational or business reasons. Any opinion or other information in this e-mail or its attachments that does not relate to the business of the Barclays Group is personal to the sender and is not given or endorsed by the Barclays Group. Barclays Bank PLC. Registered in England and Wales (registered no. 1026167). Registered Office: 1 Churchill Place, London, E14 5HP, United Kingdom. Barclays Bank PLC is authorised and regulated by the Financial Services Authority. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
