Letter: X
- x3270-3.3.4p7-3.el5.4: An X Window System based IBM 3278/3279 terminal emulator
- x3270-text-3.3.4p7-3.el5.4: IBM 3278/3279 terminal emulator for text mode
- x3270-x11-3.3.4p7-3.el5.4: IBM 3278/3279 terminal emulator for the X Window System
- xen-3.0.3-41.el5_1.6: Xen is a virtual machine monitor
- xen-devel-3.0.3-41.el5_1.6: Development libraries for Xen tools
- xen-libs-3.0.3-41.el5_1.6: Libraries for Xen tools