Exhibit 31.1
CERTIFICATION
I, Joseph W. McGrath, certify that:
1. I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K of Unisys Corporation;
2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
Date: April 29, 2008 | ||
/s/ Joseph W. McGrath | ||
| Name: | Joseph W. McGrath | |
| Title: | President and Chief Executive Officer | |
