On other platforms, a partition is a portion of the system hard disk drive that you create to run  different operating systems on the same disk, or to give the appearance of separate hard disk  drives for multiple users or other purposes. On a mainframe system, a partition is a virtual  representation of all of the physical hardware resources of that system, which include  processors, memory, and input/output (I/O) adapters. On mainframe systems, as on other  platforms, an adapter is a physical device that connects the system to other computers or  devices. Note:  DPM mode cannot coexist with standard PR/SM mode. When DPM mode is used,  only z/VM, Linux, and SSC partitions$^{a}$ (LPARs) and connections to them can be defined. a. For DPM, the term  partition  is equivalent to  Logical Partition (LPAR) .  The flowchart that is shown in Figure 1-2 is divided in two task streams. The stream on the  left side of the flowchart is based on actions that must be performed by IBM on the SEs as  preparation before the machine is handed to the customer.  The other stream (right side of the flowchart) is based on definitions that use the DPM wizard  in basic mode. Based on the input that is provided to the DPM wizard, a configuration is  activated that is used on the z14 ZR1 and the devices that are attached to the server. The  actions that are defined in the two streams must be performed in sequence.  Figure 1-2 Installation flowchart DPM mode (applicable to both scenarios) 4  IBM z14 Model ZR1 Configuration Setup