CS Principles - Abstraction

Binary data is processed by physical layers of computing hardware, including gates, chips, and components. Which item indicates the correct sequence of digital data from lowest to highest?

• bytes, bits, words

• words, bits, bytes

• bits, words, bytes

• bits, bytes, words

Convert decimal 44 to hexadecimal.

• C2

• 2C

• 3F

• 212

At the lowest level, what is all digital data represented by?

• Objects

• Bits

• Hexadecmical Color Formatting

• Aphanumeric Characters

Which of the following expressions returns true?

I. true AND false

II. NOT (true OR false)

III. false OR (true OR false)

• III only

• II only

• I only

• I and II

Which of the following does not affect the cost and length of a simulation?

• Hardware used

• Quality of simulation

• The amount of code executed

• The details of the simulation

You are sent the sequence of numbers 01101 01010 11100 10101 and asked to interpret is meaning.

• Its meaning depends on the context in which it is used.

• It is an instruction for a computer program

• It represents a number in binary.

• It is the source code behind a computer program.

Which of the following can be represented with a single hexadecimal digit?

• The day of the month

• The month of the year

• The age of a person

• The weight of a child

Which hardware component offers the highest level of abstraction?

• Logic Gates

• Transistor

• Processor

• Video Card

Which of the following can this hexadecimal code be converted to?

1985AC57B 75EFF009 1159A3CCE5

• Decimal

• ASCII

• Binary

• All of the choices

Which set of numbers has the greatest value?

• 10020

• 4F

• 10111

• It is impossible to know without knowing the base system of each set of numbers.