Module 1 challenge: Introduction to IT and Computing

(Answers are in bold)

Hardware technician

Network engineer

Desktop support personnel

Business analyst

Question 2. What is a computer? Select the best answer.

A machine can connect to the internet.

A machine that can store and display images and graphics.

A device that stores and processes data by performing calculations.

A device that uses bits to display information to a user.

Question 3. What advancement made learning programming languages accessible to nearly anyone?

Binary

Microprocessors

Compilers

Machine code

Question 4. Fill in the blank: There are ___ bits in a byte.

8

10

4

2

Question 5. Fill in the blank: ____ is used to assign characters to binary values so humans can read them.

RGB

Compilation

Refactoring

Character encoding

Question 6. Which of the following is the current method used to communicate in binary?

Vacuum tubes

Electrical signals that flow through transistors

Magnetic tape

Holes in punch cards

Question 7. Use the following binary conversion table to convert the decimal value 97 into binary format.

<NA>	1^st bit	2^nd bit	3^rd bit	4^th bit	5^th bit	6^th bit	7^th bit	8^th bit
Decimal value	128	64	32	16	8	4	2	1
Off or on	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>

01001101

01101101

01011101

01100001

Question 8. Use the following binary conversion table to convert the byte 10111001 into a decimal value.

<NA>	1^st bit	2^nd bit	3^rd bit	4^th bit	5^th bit	6^th bit	7^th bit	8^th bit
Decimal value	128	64	32	16	8	4	2	1
Off or on	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>

159

185

188

214

Question 9. Use the following binary conversion table to convert the byte 10001001 into a decimal value.

<NA>	1^st bit	2^nd bit	3^rd bit	4^th bit	5^th bit	6^th bit	7^th bit	8^th bit
Decimal value	128	64	32	16	8	4	2	1
Off or on	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>	<fill in>

137

136

145

129

Question 10. Which of these things were designed to facilitate abstraction? Select all that apply.

A textbook

A car steering wheel

An error message from your computer’s browser

Logic gates

Module 1 challenge: Introduction to IT and Computing

Question 1. Which of the following roles are typically considered part of IT? Select all that apply.