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- One method that can be used to compress text data is run length encoding (RLE). When RLE is used the compressed data can be represented as a set of character/frequency pairs. When the same character appears in consecutive locations in the original text it is replaced in the compressed text by a single instance of the character followed by a number indicating the number of consecutive instances of that character. Single instances of a character are represented by the character followed by the number 1. Figure 9 and Figure 10 show examples of how text would be compressed using this method. Figure 9 Original text: AAARRRRGGGHH Compressed text: A 3 R 4 G 3 H 2 Figure 10 Original text: CUTLASSES Compressed text: C 1 U 1 T 1 L 1 A 1 S 2 E 1 S 1 What you need to do Task 1 Write a Python program that will perform the compression process described above. The program should display a suitable prompt asking the user to input the text to compress and then output the compressed text. Task 2 Test…Consider a color image with 6x8 pixels. R, G, and B components are stored with 8 bits. There are 2^n distinct colors in the image and each pixel is stored with n bits in index color format. What is the MAXIMUM value of n that makes index color format more advantageous than RGB color format?A video frame displayed onscreen consists of many pixels, with eachpixel, or cell, representing one unit of video output. A videodisplay’s resolution is typically specified in horizontal and verticalpixels (such as 1920 3 1080), and the number of pixels onscreen issimply the product of these numbers (1920 3 1080 5 2,073,600 pixels).A pixel’s data content is one or more unsigned integers. For ablack-and-white display, each pixel is a single number (usuallybetween 0 and 255) representing the intensity of the color white.Color pixel data is typically represented as one or three unsignedintegers.When three numbers are used, the numbers are usually between 0 and255, and each number represents the inten- sity of a primary color(red, green, or blue). When a single number is used, it represents apredefined color selected from a table (palette) of colors.Motion video is displayed onscreen by copying frames rapidly to thevideo display controller. Because video images or frames require manybytes…
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- Implement the page replacement algorithm a) LIFO B) FIFO Reference string = 9 1 0 4 0 2 0 8 2 3 1 3 1 2 9 4 7 8 9 12 Calculate page fault ratio. Calculate page hit ratio Please show all step how to do provide correct solution.2. For the DFAs given below find the minimum state DFA. The start state is go. The set of final states are indicated. (a) The final state set is (93). 01 State 90 91 92 93 91 90 90 92 93 91 93 90 94 93 95 95 96 94 96 95 96 97 96 93 (b) The final state set is (92-95-98). State 0 1 90 92 93 94 95 96 97 98 91 94 92 95 93 97 94 97 95 98 91 97 91 98 92 90 94QI: Consider a line starts at (8,6) and end with (3,1), use the DDA to rasterize the line then answer the following: 1. Draw the rasterized line. 2. Does the endpoint occur in the drawing? Why? 3. Is there a floating-point computation in this line? Explain. 4. If the line endpoints (-8,-6) to (-3,-1) does the algorithm capable of drawing it? Explain.
- A common implementation of sequential files on disk has each block point to its successor, which may be any block on the disk. This method requires a constant amount of time to write a block (as the file is originally written), to read the first block in the file, and to read the ith block, once you have read the 1 - 1” block. Reading the lth block therefore requires time proportional to 1. Show how by adding just one additional pointer per node, you can keep all the other properties, but allow the lth block to be read in time proportional to log I. [Hint: heaps have implicit pointers from node I to what other nodes?] Explain what the algorithm for reading the th block has in common with an algorithm for raising a number to the ith power in time proportional to log 1.Connect a 5*7 dot-matrix display to the 8051-microcontroller (Draw the schematic on paper). Then, display the content of variable NUMBER on the display, digit by digit every one second. for example if NUMBER=249, then "2" will be displayed for one second, after that digit "4" and finally digit "9" will be displayed for a whole second. Assume that the necessary lookup table exists in Memory at address OXF000.Running times of counting. Consider an n-bit counter that counts from 0 to 2" - 1. At each step, its value is incremented. For example, when n = 5, the counter has the following values: Step 0 1 ⠀ 30 31 2 3 4 (a) (b) (c) Value # Bit-Flips 00000 00001 00010 00011 00100 11110 11111 The "Bit-Flips" column shows how many bits need to be flipped at that step. Note that to go from a count of 0 to 1, we only need to flip the last bit. But when we increase the count from 1 to 2, we need to flip the last two bits. 1 2 1 3 2 1 (b)) Argue why you need O(n2") bit-flips to count from 0 to 2" - 1. How many times is the ith bit flipped when we count from 0 to 2" – 1? Assume that the leftmost bit is i = 0 and the rightmost bit is i = n − 1. (Hint: If you're not sure, compute it by hand for the example above. Can you deduce a pattern?) Show that, in fact, it takes (2") bit flips to go from 0 to 2" – 1. (Hint: Use the answer from part