How Does The 3270 Pc Work - IBM 3270 Hardware User's Manual

Personal computer
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How Does the 3270 PC Work?
The 3270 PC does it with windows. It brings all
of your computing power together and shows it
to you through "windows". Windows are areas
of the display screen that give you access to your
host computers and your personal computer
programs. Let's assume that your 3270 PC is
connected to two host computers - a VM/370 and
an MVS/TSO host. Let's also assume that you
have one Personal Computer session. You would
have three windows on your screen. Each
window lets you set up a working session. If the
3270 PC were a traditional computer terminal,
you could have only one working session at a
time, and you would have to switch between the
sessions like this:
D
Chapter 1. What Is the 3270 Personal Computer
1-3

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