The distinction between sequential access and direct access is as follows: Allow me to give you an illustration.
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Q: What is the difference between sequential and direct access? Let me give you an example.
A: The Answer is in given below steps
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- Perform the given task.Abstract: the main purpose of this experiment is build real time system using PPI 8255 to control devices connected to. Problem description: assume that there are two devices are connected to port A and two sensors are connected to port B of PPI 8255. They work according to the following table Devices (DID2) 01 10 Sensors (S1S2) 00 01 10 11 11 00 Write a program to control these two devices according to the values of sensors. Each group should submit a zip file which contains the following files Code file: (assembly language code) - Simulation file Report (pdf file) (details of every single step in the code, also what have you learned from this experiment)6. You have taken a new job with a small marketing platform. Their main line of business is to send marketing messages to people on their extensive email list. The messages are not cheap; companies wanting to send messages must purchase them individually while specifying certain groups of people to receive them. Of course, nobody likes spam, so you try to make sure each person receives at most one marketing email a day. Suppose at the start of the day you are given a list of m messages, a list of n email addresses, and a table specifying which messages can be sent to which email addresses. Describe and analyze an algorithm that computes the maximum number of marketing emails you can send so each individual message is sent at most once and each email address receives at most one message. Advice: Reduce the problem to bipartite matching or maximum flow.
- Write a program that reads movie data from a CSV (comma separated values) file and output the data in a formatted table. The program first reads the name of the CSV file from the user. The program then reads the CSV file and outputs the contents according to the following requirements: • Each row contains the title, rating, and all showtimes of a unique movie. • A space is placed before and after each vertical separator (I) in each row. • Column 1 displays the movie titles and is left justified with a minimum of 44 characters. . If the movie title has more than 44 characters, output the first 44 characters only. • Column 2 displays the movie ratings and is right justified with a minimum of 5 characters. • Column 3 displays all the showtimes of the same movie, separated by a space. Each row of the CSV file contains the showtime, title, and rating of a movie. Assume data of the same movie are grouped in consecutive rows. Ex: If the input of the program is: movies.csv and the contents of…Convert the following NFA to a DFA. For full credit, your DFA states should be labeled indicating the sets of the NFA states(e.g., q12 indicates{q1, q2}).Computer Science Implement RSA encryption and decryption functions in Java. Note you should not use any existing security modules to perform the encryption/decryption tasks. Just write a program to compute the answers. Your program should ask user’s input for a public key (n, e), and for Q1 ask for m and display c; and ask for c and display private key d and original message m.
- I need help with this one please, already tried but still getting a wrong answer Scenario You have been tasked with building a URL file validator for a web crawler. A web crawler is an application that fetches a web page, extracts the URLs present in that page, and then recursively fetches new pages using the extracted URLs. The end goal of a web crawler is to collect text data, images, or other resources present in order to validate resource URLs or hyperlinks on a page. URL validators can be useful to validate if the extracted URL is a valid resource to fetch. In this scenario, you will build a URL validator that checks for supported protocols and file types. Task Create two lists of strings – one list for Protocol called valid_protocols, and one list for storing File extension called valid_fileinfo. For this take the protocol list should be restricted to http, https and ftp. The file extension list should be .html, .csv and .docx. Split an input named url, and then use the first…Q5: Design a PDA for accepting a language (0"1"0 | m, n-1} give the ID form as we explain in the lecture. Apply the string "00011000" on this PDA using ID transitions.Software engineering case study homework (PLAGIARISM WILL BE DETECTED !!!) Please provide an upload link for the file This case study is about a simplified Payphone coin system.1. The minimum price of a communication is 10 ryals.2. After the introduction of the currency, the user has 2 minutes to dial his number (this time iscounted by a time counter).3. The line can be free or busy.4. The Payphone consumes money as soon as the called person picks up and at each time unitgenerated by the counter.5. You can add pieces of money at any time.6. At the time of the hang-up, the balance of the currency introduced (the rest of the money) isreturned. Required work:From this statement, you are asked to:1. Establish the use case diagram of this statement.2. Construct a sequence diagram that describes the nominal scenario of Payphoning use case inthis statement.
- (This is for devc++ but I use mindmap from Cengage. I know it a little different. If you can't use Cengage, I suggest devc++ version 5.11) Summary The cost of renting a room at a hotel is, say $100.00 per night. For special occasions, such as a wedding or conference, the hotel offers a special discount as follows. If the number of rooms booked is: at least 10, the discount is 10% at least 20, the discount is 20% at least 30, the discount is 30% Also if rooms are booked for at least three days, then there is an additional 5% discount. Instructions Write a program that prompts the user to enter: The cost of renting one room The number of rooms booked The number of days the rooms are booked The sales tax (as a percent). The program outputs: The cost of renting one room The discount on each room as a percent The number of rooms booked The number of days the rooms are booked The total cost of the rooms The sales tax The total billing amount. Your program must use appropriate named…IN HASKELL PROGRAMMING LANGUAGE PLEASE In case you do not know it: the game is played on a 3x3 grid that is initially empty. Two players are playing, by alternatingly making moves. A move by a player places their token (an X for player 1, an O for player 2) into a cell that was empty. We are using algebraic notations for indexing the positions in the board, with A,B,C indexing the columns and 1,2,3 the rows. Specifically, these coordinates would be used in the implementation for moves made by a human player. If the X X O Figure 1: Sample board position same token appears 3 times in any of the three columns, three rows or two main diagonals the game is over and that player wins. If the grid is filled without that happening the game is a draw. For the depicted board, we have Xs in positions C3 and A2, and an O in position B1. It would be O’s turn to make a move; a legal move would be C2, but it is not a good move, because X can force a win by responding A1. O cannot force a win, but…Two friends are exchanging messages through regular post mail. They don’t want anyone to understand their messages in case anyone read them. The messages are in the form of an array of characters, where each character has a numeric value as illustrated in the below lookup table.