Digital Logic

Question 1

Computer language

Answer 1

1 - The Communication method that a computer uses is called a binary system or base -2 numeral system (counts by 1s and 0s).
2 - Calculates 1s and 0s millions or billions of times.
3 - Just like we use alphabets to form words, paragraphs and stories, the computer uses binary numbers ( 10010110).
4 - Historically, in computing, binary was used and 2 to the 8 numbers (256) offers a large range of numbers to do the computing.
5 - 8 bit in a byte. kilobit - 1024 byte

Question 2

Character encoding

Answer 2

1 - Character encoding is used to assign binary numbers to characters so we can understand them.
2 - the oldest character standard encoding is the ACII
table (lowercase a. maps to 01100001 in binary). Can handle 127 of 256 values.
3 - Current Standard is UTF 8 allows us to store characters in more than one byte (goes beyond 256 values).
4 - Represents character encoding in a consistent manner.
5 - With the RBG model, 3 characters are used each, and with 8 combinations, all colors can be represented.

Question 3

Binary

Answer 3

1 - A foundational binary concept is that, by utilizing the two states of 1s and 0s, a computer can calculate any possible combination of numbers.
2 - Reading binary numbers is done by using electricity via transistors to allow electrical signals to pass through (if there’s an electrical voltage, 1s, if not, 0s).
3 - Logic gates allows our transistors to do more complex tasks, like where to send the signal.

Question 4

Counting in Binary

Answer 4

1 - To count in binary, start with 0, 1, then you count until 9 (last digit) and then go back to 0 but add 1 to the left (same for 99, etc.)
2 - If you take a number like 128, 64,32,8,4,2,1, check binary corresponding to it (00001010). add the ones with 1s (8+2=10). * Ask questions if possible.