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Social media is a computer-based technology that facilitates the sharing of ideas, thoughts, and information through the building of virtual networks and communities. By design, social media is Internet-based and gives users quick electronic communication of content. Content includes personal information, documents, videos, and photos. Users engage with social media via a computer, tablet, or smartphone via web-based software or applications. Your company has asked you to develop a new social media platform Gossiper. You are asked to brainstorming for differentiate between Twitter and Instagram and extract features for Gossiper?
FDC owns a very expensive, state of the art dental scan machine (a device far superior to a traditional dental X-ray machine) manufactured by Toshiba, Japan. FDC will be owning just one such machine in the foreseeable future. When modelling and implementing FDC system in software, you must ensure that only one instance of that machine is created. Which design pattern could come to your assistance? Justify your answer. Provide a UML diagram and an implementation for the pattern you have recommended. You may include suitable attributes for the machine such as serial number, make, country of origin and cost. Your implementation should allow the user to enter details of the dental scanner and create the sole instance of that machine. Any attempt to create more than one instance of the scanner must be prevented. Provide screenshots and source code listing as evidence of program execution.
Part (a) [1 MARK] The list below is shown after each pass of a sorting algorithm. ['M', 'A', 'D', 'E', 'B', 'F', 'C'] # initial list Which sorting algorithm is being executed? (circle one) (a) bubble sort ['A', 'D', 'E', 'B', 'F', 'C', 'M'] # after one pass ['A', 'D', 'B', 'E', 'C', 'F', 'M'] # after two ['A', 'B', 'D', 'C', 'E', 'F', 'M'] # after three ['A', 'B', 'C', 'D', 'E', 'F', 'M'] # after four (b) selection sort (c) insertion sort