A secretary has many administrative duties. Traditionally, these duties were mostly related to correspondence, such as the typing out of letters, maintaining files of paper documents, etc. The advent of word processing has significantly reduced the time that such duties require, with the result that many new tasks have come under the purview of the secretary. The duties may vary according to the nature and size of organisation. These might include managing budgets and doing bookkeeping, attending telephone calls, handling visitors, maintaining websites, and making travel arrangements. Secretaries might manage all the administrative details of running a high-level conference or arrange the catering for a typical lunch meeting.