There is an IBM redbook, which you can download (no charge) at the IBM
publications website, called
Introduction to z/OS and the mainframe environment
Get it and read it. You will then be able to reformulate your questions.
John Gilmore
Ashland, MA 01721-1817
USA
From: "Kuredjian, Michael" <[EMAIL PROTECTED]>
Reply-To: IBM Mainframe Discussion List <IBM-MAIN@BAMA.UA.EDU>
To: IBM-MAIN@BAMA.UA.EDU
Subject: Newbie Questions!
Date: Tue, 18 Jul 2006 15:46:27 -0400
I'm currently in University on my Co-op term as a COBOL programmer for host
systems (zOS). I have a few basic questions regarding the zArchitecture
that I can't seem to elicit answers to from my co-workers. The questions
are as follows:
1. zOS has a kernel called the BCP, or Base Control Program. In Linux or
Windows, it's established that the kernel runs on a general purpose CPU(
PowerPC, x86, MIPS, etc...); however, I would like to know if such a
central CPU exists in the mainframe, and if that central CPU is of some
common architecture like, POWER. If not, are there any documents that I can
look into that will describe the CPU architecture for me?
2. ESCON and FICON are data busses used for external storage devices, but
what does the mainframe use for internal data bus, InfiniBand,
HyperTransport?
3. Does the mainframe use common interconnects on the hardware level? I'm
thinking of PCIe, PCI-X, MCA, or PCI.
That's all for now, but I'm sure subsequent answers will generate follow-up
questions on my part. Thanks for taking the time to read this!
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