Module 1: Foundational IT Knowledge
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In this post, I provide complete, accurate, and detailed explanations for the answers to Module 1: Foundational IT Knowledge of Course 1: Introduction to Information Technology and AWS Cloud
Whether you’re preparing for quizzes or brushing up on your knowledge, these insights will help you master the concepts effectively. Let’s dive into the correct answers and detailed explanations for each question!
Matching
Practice Assignment
1. Match the term to its definition.
Explanation:
1. The primary component that’s responsible for executing instructions and performing calculations in a computer system
Answer: CPU (Central Processing Unit)
Explanation: The CPU is the “brain” of the computer. It performs all the calculations and processing tasks required by software and the operating system.
2. A type of temporary storage for data that’s actively used by the computer’s processor
Answer: RAM (Random Access Memory)
Explanation: RAM stores data temporarily while your computer is running. It’s fast and volatile, meaning data is lost when the computer is turned off.
3. A type of long-term data storage that retains information even when the computer is turned off
Answer: Persistent Storage
Explanation: This includes any form of storage that keeps data without power — like SSDs and HDDs. It’s called “persistent” because the data persists.
4. A data storage device that uses magnetic disks to store and retrieve digital data
Answer: Hard Disk Drive (HDD)
Explanation: HDDs use spinning magnetic disks to read/write data. They’ve been around for a long time and are known for their storage capacity.
5. A storage device that uses flash memory to store and retrieve data
Answer: Solid State Drive (SSD)
Explanation: SSDs are faster than HDDs and use flash memory (no moving parts). They’re common in modern laptops and desktops for speed and reliability.
6. The main circuit board of a computer that connects various components and allows communication between them
Answer: Motherboard
Explanation: The motherboard is the backbone of a computer — it connects the CPU, RAM, storage, GPU, and more, allowing them to communicate.
Self-reflection: What is virtualization?
Graded Assignment
2. In your own words, describe how virtualization works.
Virtualization is the process of creating a virtual version of something, like a computer system, server, or storage device. It works by using special software called a hypervisor to divide the physical resources of a single machine (like the CPU, memory, and storage) into multiple virtual machines (VMs). Each virtual machine runs its own operating system and applications, just like a real computer, but they all share the same physical hardware.
This makes it possible to run many different systems or tasks on one physical computer, which saves space, reduces costs, and improves efficiency.
Related contents:
Module 2: IT and the Internet
Module 3: The AWS Cloud
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