10 Questions
Components that could make up a computer include a central processing unit, memory, expansion cards, power supplies, and ______
optical disk drive
System software includes operating systems like Windows, Linux, Mac OS, and ______
mac operating system
Application software allows users to browse the internet, create documents, and send email messages to someone else, serving a specific ______
function
Input devices commonly found in computers are a keyboard, mouse, and ______
external hard drives
Exchanging AC adapters with different types of laptops could cause damage to the AC adapter and the ______
laptop
Printer parts such as power supplies contain high voltage components, and it's important to check the printer manual for the location of high voltage components to prevent ______
injuries
Power supplies should not be opened up unless you have specific training due to the risk of ______
electrocution
ESD, which stands for electrostatic discharge, can occur when there's a buildup of an electrical charge on a surface that comes into contact with another differently charged surface, leading to potential ______
damage
Electrical devices like computers, mobile devices, and phones operate by using ______
electricity
ESD is a big concern when working with electrical devices as it can lead to injuries and even ______
fatalities
Study Notes
The Personal Computer
- A computer is a device that allows interaction with hardware and performs calculations or functions.
- A computer consists of various components, including:
- Input devices (e.g., scanner, keyboard, mouse)
- Central Processing Unit (CPU)
- Memory (Random Access Memory)
- Expansion cards (e.g., video card)
- Power supply
- Optical disk drive (not always present)
- Storage devices (hard disk or SSD)
- Motherboard (connects components together)
- Monitor
- System software (e.g., operating system)
- Application software (e.g., internet browsers, document editors)
- Output devices (e.g., speakers, headphones)
- External devices (e.g., external hard drives, printers)
Electrical Safety
- Electrical devices have specific power requirements.
- Always ensure the correct AC adapter for a laptop, as swapping adapters can cause damage.
- Be cautious when working with high-voltage components, such as those found in printers and power supplies.
- Never open power supplies unless specifically trained to do so, as they can cause electrocution, fires, and fatalities.
- Electrostatic discharge (ESD) can occur when a surface with an electrical charge comes into contact with another differently charged surface.
Test your knowledge on Chapter 1 of Cisco Netacad IT Essentials 7.0 course, focusing on the basics of personal computers and PC components. Learn about the definition of a computer, different types of components, and their functions.
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