Long description

The figure shows a block labeled remote host which consists of seven rows. The first five rows are labeled user space and the remaining two rows are labeled kernel space. The first row consists of two columns labeled window manager, application program. The remaining rows are labeled from top to bottom as follows. Motiff, Intrinsic, Xlib, X client, UNIX, hardware. Another block is given next to the remote host block which contains three rows labeled X server, UNIX, and hardware. This block is connected to a computer that has a window. The two blocks are connected by a network. The X client of the first block is connected to the X server of the second block.