How would the following string of characters be represented using run length encoding? What is the compression ratio?  AAAABBBCCCCCCCCDDDD hi there EEEEEEEEEFF

In one of the labs performed you were to examine a .jpg and write the first 2 bytes of Hexadecimal information representing that .jpg. Which of the following is the Hexadecimal representation of that .jpg?     FF E8     FF D8     E8 FF     D8 FF

How many 14-bit strings (that is, bit strings of length 14) are there which: a. Start with the sub-string 011? 2048 b. Have weight 4 (i.e., contain exactly 4 1's) and start with the sub-string 011? 330 c. Either start with 011 or end with 01 (or both)? 6144 d. Have weight 4 and either start with 011 or end with 01 (or both)? 825

Write down the bit pattern in the fraction assuming a fl oating point format that uses Binary Coded Decimal (base 10) numbers in the fraction instead of base 2. Assume there are 24 bits, and you do not need to normalize. Is this representation exact?

Question Compute a Huffman trie for the following string of length 61. UUJCUJUVAJHHVUJJUUHEUVJJAVHUJEJEJVUVEUAVJVAAVHJEJJJEHVJJEJHHU Here are the frequencies of the characters in the string: char freq А C 1 7 H 8. J 18 U 12 V 10 Using the encodings from the Huffman trie you computed, how many bits are needed to encode the above string? Do not count the bits to represent the encoding table (or any bits used for padding and byte alignment). Answer Your answer should be a positive integer.

A What bit string represents the bitwise OR of bit strings 0110 and 1110?  B What is the difference of these sets, i.e., {1,3,4} - {2,3,5}?   C What is the value of x after this statement is encountered in a computer program, if x = 1 before the statement is reached? if x + 1 < 3 then x := x + 1 D What is the union of sets {1,3,4} and {2,3,5}? E What is the cartesian product of sets {1,3,4} and {2,9}? F Let U={0,1,2,3,4,5,6,7}. What bitstring represents the subset of all odd integers in U? G What is the powerset of set {1,3,4}? H What bit string represents the bitwise AND of bit strings 0110 and 1110? I What is the intersection of sets {1,3,4} and {2,3,5}?

Find the decimal values of the following signed (negative) numbers. First find a signed-magnitude binaryrepresentation for them and then convert them to decimal numbers: a. (71)8= (111001)2 signed-magnitude =b. (80C)16 = (100000001100)2 signed-magnitude =c. (10100101)2 = (-0100101)2 signed-magnitude =

Suppose that we use the floating-point format with 12 decimal digits, SEEEMMMMMMMM, to rep- resent a real number, where S is the digit to represent the sign of the mantissa (use 0 for pos- itive and 5 for negative), EEE are the 3 digits to represent the exponent in excess-500 format, MMMMMMMM are the 8 digits to represent the magnitude of the mantissa, and the decimal point of the mantissa is right to the left of MMMMMMMM (i.e., SEEEMMMMMMMM representing the real number +0.MMMMMMMM × 10EEE-500.) When you use this format to represent a real number, in which scenario an overflow will occur and in which scenarios an underflow may occur?

What is the probability that a 16-bit binary string is a palindrome? Please explain your work.

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