Disk array (current) Probabilistic-serial procedure Partition function (quantum field theory) Basic Sequential Access Method R programming language Needleman–Wunsch algorithm Power Processing Element Period 1 element EcmaScript Magic (cryptography) Trunk neural crest Infrastructure and Projects Authority Probabilistic latent semantic analysis Spring Break '87 Cello Concerto No. 1 (Saint-Saëns) Callistus II of Constantinople IBM LAN Server