在需要處理數據時，系統或資源就緒的程度。
The degree to which a system or resource is ready when needed to process data.
計算機是一種快速、精確的符號加工系統，它能接收、存儲、處理數據併產生輸出結果。
A computer is a fast and accurate symbol processing system. It can accept, store, process data and produce output results.
科學和技術的一個分支，專門研究在人們、地方或機器之間如何表示、傳送、解釋或處理數據的過程，關鍵的內容是在上述過程中要保持賦給既定數據的含義不變。
The branch of science and technology that is concerned with the process of representing, transferring, interpreting, or processing data among persons, places, or machines. It is essential that the meaning assigned to the data is preserved during the process.
