5. Write a program to remove any duplicate letters from a word and display the new word maintaining the original order. For example, bananas would become bans and bookkeeper would become bokepr. You may not use any special unique commands!

word = input('Enter a single word: ', 's');

n = length(word);

nodupWord = [];

for i = 1:n

  dup = false;

  c = word(i);

  for j = 1:i-1

      if word(j) == c

          dup = true;

          break;

      end

  end

  if ~dup

      nodupWord = [nodupWord, c]; %add the non-duplicate char to end

  end

end

disp(['Adjusted word: ', nodupWord])

Explanation:

The code is in Python.

2. Perfect technology assumption

Explanation:

Perfect technology assumption is an assumption that a system should always run under perfect operating conditions before event can be included during analysis and by doing this it make it possible to avoid system failure, which is why it is important for a system to always work under a perfect condition because in the initial stage of the system analysis, the perfect technology assumption assumes the system works in perfect condition .

Therefore Perfect Technology Assumption assume that events should be included during early iterations or analysis on condition that the system would be required to respond in an effective and efficient manner or ways.

Hence if event is included system controls checks should always be put in place to protect the integrity of the system perfect technology assumption.