Section Review Section Revieweiv Re w
1.1 1.1
Copyright Goodheart-Willcox Co., Inc.
Chapter 1 Introduction to Information Technology 15
Check Your Understanding
1. List the four phases of the digital revolution.
2. A measure of the amount of data that can travel
on a communication system is called _____.
3. What are four main categories of computers?
4. What are the four functions of a computer?
5. What does an input device provide to the
computer?
Build Your Vocabulary
As you progress through this course, develop a
personal IT glossary. This will help you build your
vocabulary and prepare you for a career. Write a
definition for each of the following terms and add it to
your IT glossary.
central processing unit
(CPU)
cloud computing
computer
digital revolution
hard disk drive
hardware
input
mainframe computer
motherboard
output
peripheral device
personal computer
port
processing
random-access memory
(RAM)
read-only memory (ROM)
server
supercomputer
volume label
Component Identification
Using the image shown, identify the computer hardware components labeled by number.
Hands-On Example 1.1.2
3
1
2
1. Object number 1 is called a(n) _____.
2. Objects number 2 are _____.
3. Assembly number 3 is called a(n) _____.
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