System Unit Description
1-1
Chapter 1. System Unit Description
This chapter contains information to help you become familiar with the 7012 system unit.
Typical Workstation Arrangement
Your system unit may have a display, keyboard, and mouse attached to it, plus a wide range
of other available options such as a tape drive, printers, data communications, terminals,
and plotters.
An illustration of a typical system unit office arrangement follows:
3-Button Mouse
Keyboard
Display
Tape Drive
System Unit
System Unit
The system unit processes data (input) from the keyboard, mouse, tablet, disk drives,
diskettes, tape drives, and communications connections. It contains a 32-bit processor,
input/output (I/O) adapters, memory, and media storage devices. The hardware is controlled
by the operating system program.
Each model of the system unit has a standard memory size, but each can be configured with
additional memory cards. See
Adapters, Devices, and Cable Information, Order Number,
SA23-2764 for details.
The system unit provides slots for the installation of Micro Channel adapters. Internal
hardware controls the 3.5-inch diskette drive, speaker, two serial ports, one parallel port,
mouse, keyboard, tablet, and disk drives.
