What does CD-ROM mean? CD-ROM, compact disc read-only memory (noun) a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user
The average life, also referred to as the âweighted average lifeâ or âweighted average maturityâ or âWAM,â is a reflection of the rapidity with which the principal of an issue is expected to be paid.
Weighted-average life[edit] Main article: Weighted-average life. The number weighted average of the times of the principal repayments of an amortizing loan is referred to as the weighted-average life (WAL), also called average life. It's the average time until a dollar of principal is repaid.