Computer software for creating searchable databases of information and data; Computer software for use in the encryption and decryption of digital data; Communication software for transferring data between nodes of digital communication network; Computer software for use in safeguarding digital data transmitted over digital communication channels; Computer software for implementation of Error Correction Codes (ECC); Computer software for data recovery after digital media errors, hardware failures and communication channel errors; Computer software for use in data backup systems, data replication and disaster recovery systems; Computer software for implementation of distributed and local storage systems; Computer software for implementation of distributed computing systems; Computer software for memory management and task scheduling; Software tools for use in software development; Computer utility programs for performing computer maintenance work