Explanation:

Information is data that has been processed, organized, or structured to make it meaningful. While 'information' is distinct from raw 'data' (a), once information is generated or received by a computer, it must be preserved. Therefore, 'Information in computer' is typically found as 'Stored data' (d). Although not all stored data is information (some can be raw data), any information residing within a computer system must necessarily be stored. Options (b) 'Number' and (c) 'Symbol' are too specific and represent types of data, not processed information. Therefore, 'Stored data' is the most appropriate description for information residing within a computer's memory or storage devices.