3_Computer Science Grade 10 Principles of text program didactic material 1 var

FORMATIVE ASSESSMENT

Name ____________________________ Class ______________________________

1.                 Encode text using the ASCII code table.
Happy Birthday to you!

Write binary and hexadecimal representations of code

In hexadecimal

48 61 70 70 79 20 42 69
72 …
6F …

In binary 1001000 1100001 1110000 1110000 1111001 0100000 1000010 1101001
…
1101111 …
Answer_____________________________________________________________________

2.                 Decode the text from ASCII international coding table (given a decimal representation).

72 101 108 108 111 44 32 109 121 32 102 114 105 101 110 100 33

Answer: Hel…

3.                 Using the ASCII code table, decrypt the text presented in the binary form

01010000 01100101 01110010 01101110 00100000 01010101 01101110 01101001 01110110 01100101 01110010 01110011 01101001 01110100 01111001

Answer_____________________________________________________________________