Chapter 1: Introduction to the Personal Computer. IT Essentials: PC Hardware and Software v4.1. Chapter 1 Objectives. 1.1 Explain the IT industry certification 1.2 Describe a computer system 1.3 Identify the names, purposes, and characteristics of cases and power supplies
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IT Essentials: PC Hardware and Software v4.1
An A+ Certification candidate must pass two exams:
covers the basic skills needed to install, build, upgrade, repair, configure, troubleshoot, optimize, diagnose, and maintain basic personal computer hardware and operating systems
Modules 1-3 covered in this course:
CAUTION: Do not open a power supply.
Electronic capacitors located inside of a power supply can hold a charge for extended periods of time.
CPU FanCooling Systems
Increase the functionality of a computer by adding controllers for specific devices or by replacing malfunctioning ports.
Data cables connect drives to the drive controller, which is located on an adapter card or on the motherboard.
A video port connects a monitor cable to a computer.
Fingerprint scannerInput Devices
Input devices used to enter data or instructions into a computer:
The most important difference between these monitor types is the technology used to create an image:
SpeakersOther Output Devices
System resources are used for communication purposes between the CPU and other components in a computer.
There are three common system resources:
1.1.2 Jobs Opportunities
1.4.7 Research Computer Components