Java

Write down an assembly program to reverse the predefined string strV= "today isgood". into another variable rev= doogsiyadot. Show your screenshot of the output.

A particular system is controlled by an operator through commands entered from a keyboard.The average number of commands entered in an 8-hour interval is 60. Show your work toreceive full credit. a. Suppose the CPU scans the keyboard every 100ms. How many times will the keyboard bechecked in an 8-hour period? b. By what fraction would the number of CPU visits to the keyboard be reduced if interrupt-driven 1/0 were used?

What do you think would happen if you invoked the following command on the shell? Why?Explain. (10 marks)

Consider the following dependency graph: Construct the component graph by identifying each of the strongly connected components (SCCS). Which of the following edges CAN be safely added to the dependency graph without reducing the number of strongly connected components? Add (M,D). Add (C, F). Add ( M, L). Add ( L, A).

Program: SongList and MySong For this project, you will be creating a lists of songs, like a playlists in a music app. The song data will be obtained from an online dataset and accessed via the BRIDGES API. The dataset structure for the songs consists of the title, release_date, artist, album, and lyrics. • You are to write a class called MySong to hold information about songs. o The MySong class must implement the Comparable<MySong> o You will be obtaining the song data to create MySong objects using the BRIDGES API via the connect.DataSource and bridges.data_src_dependent.Song classes. • You will store the MySong objects in a second class called SongList o The SongList class implements the custom List<MySong> Download List<MySong> interface and the java.util.Iterable<MySong> interface. o You only need to implement the iterator method of the Iterable interface, you may leave the two default methods as they are provided. o A SongIterator class must be implemented as an inner class to the SongList o Each SongList must have a name and a linked chain of Slelement<MySong> objects

What are the definition of ruid, euid, and suid in UNIX? Explain. (10 marks)

Using the Master Theorem, determine which of the following recursion relations describe functions whose growth rate is O(n log n). In all cases, you may assume that T(1) = 1. T(n)=5 T(n / 2)+n^{3} T(n)=5 T(n / 5)+n T(n)=4 T(n / 2)+n \log n T(n)=T(n / 4)+n \log n T(n)=T(n / 4)+n \log n

7. Awhile loop is a block of statements that are repeated indefinitely as long as some condition issatisfied. a) True b) False