Computer Information Paper

990 words - 4 pages

Having an understanding of computer systems can help with understanding and accommodating the needs of an organization as well as personal computer needs. The purpose of this informative paper is to explain methods of information input and output, what situations are appropriate for various devices and explain to the role of various items in determining the speed of a computer.Methods of Data InputPrinted questionnairesPrinted questionnaires are used for gathering and capturing raw data. All raw data such as man hours for employee payroll checks, university grading systems and so forth must be keyed into a computer programs and properly calculated to pay employees and give students their proper grades. The computer keyboard is the best input device for printed questionnaires.Telephone surveyTelephone surveys are used for gathering and collecting information over the phone verbally. Voice activated input devices are the best route for inputting verbal responses. This type of device would save time and money for an organization because responses can be voice activated and computer recognizable which would cut out the need for human input thus saving on human resources (man hours).Bank checksBank checks, having multiple numbers and a multitude of information are time consuming at best and costly on human resources with a high record of error. The Magnetic Ink Charter Recognition (MICR) would be the best input device for this process. The MICR can read all the numbers at the bottom of the check in seconds without human error which would save time, money and human errors.Retail tagsRetail tags are used for pricing goods for sale. The bar code scanner would be the best input device since it can read numbers quickly and more accurately than humans can. The bar code scanner would save a company time, money, human resources and human error.Long documentsLog documents are manually written and input into computer systems. Scanners with optical scanning recognition (OCR) are the best input device for such information. This type of device can scan any document and transfer it to the computer in seconds versus hours of manual labor. Therefore, scanners with OCR capabilities can save a company in labor costs and time as well as cut down on human error.Methods of Data OutputHand Held ComputerHand held computers consist of anything hand or pocket size from a cell phone to a PDA or even a lap top PC. Many of the older hand held devices used an external display unit i.e. computer pen or such devices. An on-board display or touch screen would be the best output device for hand held computers because they alleviate the need for an external device which could become lost or misplaced easily.Color PhotographColor photographs are color photographs, or so one might think. While most printers can scan and copy photos nicely with quality paper there is a difference in photograph brightness and crispness depending on the type of printer used. Color inkjet or laser jet...

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