Data Entry, Output, Storage and Memory

Topics: Computer data storage, Hard disk drive, Computer Pages: 3 (897 words) Published: February 24, 2008
Data entry
Data entry or input is the process by which raw data is captured and recorded. Input can be an automated or manual process. Regardless of what type of input is selected, accuracy is critical to the desired output. (Stair & Reynolds, 2006). The type of data to be entered determines the data input method. For example, printed questionnaires are best suited for manual data entry. Questionnaires tend to be unstructured and may require interpretation by the survey issuer. An example of data that is better suited to electronic entry is bank checks. A high volume of checks means more instances of error in data entry. Today, check images are used instead of actual checks, reducing errors and the length of time it takes to clear for release of funds. An increasingly popular mechanism for data collection is the telephone. Telephone surveys and On-line data collection for customer satisfaction and market research are becoming the data collection tools of choice for businesses that want to understand their demographics and service their customers better. Telephone survey data collection is an automated process, the computer dials, asks questions and records data. If a live operator is used, the data can be entered manually as it is given. Other types of data for entry are retail tags and long documents. Scanning is more often the preferred method for entering these types of data. Output

Output is the useful information retrieved after data has been input and processed. Output comes in various forms from various peripherals. Examples of output devices are printers and display screens. (Stair & Reynolds, 2006). In business, examples of common outputs are documents such as manager reports or employee paychecks. Depending on the hardware being used or type of output desired, different situations may require various forms of output from different output devices. Output on a handheld computer may be limited to what is displayed on the screen. However, if the...

References: Brain, M. (2007) How Hard Disks Work. Retrieved October 9, 2007 from http://computer.howstuffworks.com/hard-disk.htm
Stair, R. & Reynolds, G. (2006). Fundamentals of Information Systems, Third ed. Chapter 1, pg. 35. Thomson Course Technology.
Tyson, J. (2007). How Computer Memory Works. Retrieved October 9, 2007 from http://computer.howstuffworks.com/computer-memory2.htm,
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