JNTU
JNTU MCA 2018 HUMAN COMPUTER INTERACTION Previous Question Paper (June/July - 2018 - R13)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 20 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 8 marks and may have a, b, c as sub questions.
Part A
Explain the brief history of screen design.
Answer
Screen design evolved from early command-line interfaces (CLI) where text-based displays were limited by character grids. The 1970s saw the development of the Graphical User Interface (GUI) at Xerox PARC, introducing windows, icons, menus, and pointers (WIMP). In the 1980s, commercial success followed with the Apple Lisa and Macintosh, leading to the standardization of desktop environments. The 1990s shifted focus to the World Wide Web, necessitating responsive and browser-based design, eventually leading to the modern era of mobile-first, touch-based, and minimalist flat design interfaces.
Compare and Contrast the GUI and the WUI.
Answer
A Graphical User Interface (GUI) is a desktop-based system that uses visual elements like windows, icons, and menus to interact with local software applications, typically relying on mouse and keyboard input. In contrast, a Web User Interface (WUI) is designed for web browsers, focusing on navigation, hyperlinks, and cross-platform accessibility over the internet. While both share visual metaphors, GUIs offer higher performance and complex local interaction, whereas WUIs prioritize connectivity, information architecture, and responsiveness across varying screen sizes.
What are the goals of website navigation?
Answer
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Give a brief note on Galaxy scripting language.
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Discuss about LCD's.
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Part B
Explain the benefits of good design.
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Explain about views.
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What are the principles of Xerox star?
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What are the advantages and disadvantages of graphical systems?
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Explain in detail about interaction styles.
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Write the guidelines for intranet and extranet design.
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Explain the purpose of screen design.
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Explain in detail about the various device-based controls.
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What are the advantages and disadvantages of frames?
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Discuss about window components.
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Explain the role of software engineering tools in building the user interface.
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Explain transition diagrams with an example.
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Discuss about TCL scripting language.
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Differentiate javascript and HTML.
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Give a detailed note about direct control pointing devices.
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Write a short notes on helmet mounted displays.
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Explain the following.
DVORAK layout
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Optical mouse.
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