EXHIBIT 12.1

DELL INC.

RATIO OF EARNINGS TO FIXED CHARGES

Fiscal Year Ended | ||||||||||||||||||||

February 3, 2012 | January 28, 2011 | January 29, 2010 | January 30, 2009 | February 1, 2008 | ||||||||||||||||

(in millions, except ratios) | ||||||||||||||||||||

Earnings | ||||||||||||||||||||

Pre-tax income from continuing operations | $ | 4,240 | $ | 3,350 | $ | 2,024 | $ | 3,324 | $ | 3,827 | ||||||||||

Add: Fixed Charges adjusted for capitalized interest | 315 | 228 | 191 | 132 | 84 | |||||||||||||||

Add: Noncontrolling interest | — | — | — | — | 29 | |||||||||||||||

Total | $ | 4,555 | $ | 3,578 | $ | 2,215 | $ | 3,456 | $ | 3,940 | ||||||||||

Fixed Charges ^{(a)} | ||||||||||||||||||||

Interest Expense | $ | 279 | $ | 199 | $ | 160 | $ | 93 | $ | 45 | ||||||||||

Capitalized interest | — | — | — | — | — | |||||||||||||||

Estimate of interest in rent expense | 36 | 29 | 31 | 39 | 39 | |||||||||||||||

Total | $ | 315 | $ | 228 | $ | 191 | $ | 132 | $ | 84 | ||||||||||

Ratio of Earnings to Fixed Charges | 14 | 16 | 12 | 26 | 47 |

^{(a)} | Fixed charges included in the calculation of this ratio consist of: (i) interest expensed, plus (ii) interest capitalized (when applicable), plus (iii) a reasonable estimation of the interest factor included in rental expense. |