WorksheetsAP CSP Unit 1 Quiz 1
Total questions: 8
Worksheet time: 12mins
What is the formal name for the number system we use daily, where every number is in base 10?
Binary
Hexadecimal
Decimal
Octagonal
What is the formal name for the number system computers use, where every number is in base 2?
Binary
Hexadecimal
Decimal
Octagonal
Which of the following is the number "61" in binary?
0000 1110
0100 0001
0011 1101
0101 1101
Which of the following is the decimal equivalent to the binary number 1000 1000?
100,010,000
128
136
1000
Which of the following would be the next number after 0101 1100?
0101 1101
1101 1100
1101 1111
1101 1110
Mr. Chrzan is trying to build a data base for all the students in school. He wants to assign each student to their own number, but needs to represent them in binary. If there are 220 students at our school, what is the LEAST number of bits he will need to use?
9
8
10
2
Mr. Chrzan returns to his data base in two years, but now the size of the school has doubled, giving him 440 students to assign a number to. How many bits does he need now?
9
8
16
18
Which of the following best describes why ASCII was created?
To have an agreed upon translation that all computers use for converting characters to binary to ensure messages don't change between computers
So the US could spy on other countries messages in World War 2 by knowing how the computers translate them
To make it easier for computers to represent text since they could represent the letters without it
To encode messages in binary to stop other countries from spying on us in World War 2
