UCSC CMPE 003 - The User Connection (46 pages)

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The User Connection



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The User Connection

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Lecture Notes


Pages:
46
School:
University of California, Santa Cruz
Course:
Cmpe 003 - Personal Computer Concepts

Unformatted text preview:

Computers Tools for an Information Age Chapter 5 Input and Output The User Connection Objectives Describe the user relationship with computer input and output Explain how data is input into a computer system and differentiate among various input equipment Describe how a monitor works and the characteristics that determine quality List and describe the different methods of computer output Objectives Differentiate among different kinds of printers Explain the function of a computer terminal and describe the types of terminals Describe the ethical considerations involved in handling computer data How Users See Input and Output Users submit data input to the computer to get processed information output Output can be instant reaction to input Also can be separated by time distance or both Instant Reaction Items scanned at supermarket Forklift operator speaks to computer Forklift obeys operator s commands Sales rep enters an order on a pad Produce item name and price at counter Characters displayed as typed text and stored in pad Factory workers punch a time clock as they go from task to task Produce weekly paychecks and management reports Input and Output Separated Data on checks input into bank computer Charge card transactions provide input Computer processes entries once a month to prepare statements Processed monthly to produce customer bills Water samples collected and input into computer Used to produce reports that show patterns of water quality Input Getting Data from the User to the Computer Keyboard Pointing devices Source data automation Keyboard Similar to typewriter keyboard Can be unique to an industry May be part of a personal computer May be part of a terminal connected to a computer in another location Keys on McDonald s keyboards represent Big Mac or large fries Ergonomic keyboards Ergonomic Keyboards Designed to reduce or minimize repetitive strain injury of wrists Provide more natural comfortable position of wrists arms and hands Anatomy of a Keyboard



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