TechSkills

Basic to Advanced Computer Knowledge Guide

Welcome to your complete guide to computer knowledge - from the simplest basics to advanced professional concepts. Learn about computer components, MS Office tools, the internet, networking, software, and programming - all explained in easy, step by step. Whether you're a student, job seeker, or just exploring technology, this guide will help you strengthen your digital skills and stay updated with the modern tech world.

💻 Explore How Computer Really Work ?

(Learn about how a computer actually works - check this diagram step by step)

Start the Computer

Load the Operating System

Open Desktop Screen

Run Software (App)

Input Data (Keyboard)

How to Work Computer ?

Process the Data (CPU)

View Output on Screen

Save the Work (Storage)

Print or Share Output

Shut Down Computer

💻 Computer Knowledge Hub — 32 Practical Guides

Explore computer knowledge from beginner to expert — Lessons 1 to 6 with easy explanations.

History Of Computer and How Computers Work’s & More.

Discover how computers evolved and changed the digital world we live in today.

Computer Shortcut Keys Explained

Learn all the useful shortcut keys, benefits, and how to boost your productivity.

Types of Computers

Understand how various computers work and what makes each type unique.

Input Devices Of Computer

Discover how input devices like keyboards, mouse, and touchscreens let us communicate with computers.

Output Devices Of Computer

Learn about output devices like monitors, printers, and speakers — bringing digital to life.

Types of Printers & Their Uses

Explore the different types of printers — from inkjet to laser, find which one fits your needs.

Lessons 7 to 32 — Learn Step by Step

Basics

Intermediate

Advanced

💡 Tips, Tools & More

Explore useful computer knowledge — from basics to advanced tricks, all organized neatly.

Best Instagram Caption & Hashtag Generator Tool

Best Instagram Caption & Hashtag Generator 2025

Generate the perfect Instagram caption and hashtags in seconds - boost your post’s reach with smart, ready-to-use tag sets.

Recovering deleted WhatsApp Data (Andriod/ios): Chat, Videos & more

Retrieve deleted WhatsApp chats fast - this guide shows simple ways to restore lost messages in a few steps.

Cloud Storage Systems: Revolutionizing Data Security with Blockchain.

“Explore how cloud storage systems store, secure and scale your data in the digital age - all without owning your own servers.

How to Recover Deleted Photos and Videos from 5 Years Ago

Recover deleted photos & videos in minutes - follow our easy guide to restore lost memories from your device.

Content Writing, Types, Importance, Tools ? A Complete Guide.

Learn how to craft engaging content that ranks, inspires, and converts - your guide to professional writing skills.

Animation: A Comprehensive Guide to Understanding and Mastering the Art

Dive into the world of animation - learn how characters, stories and motion come alive through vivid visuals and tech.

Top 5 New Smart AI for Easy Future Life.

Discover the latest smart AI tools you can use today - explore how cutting-edge systems are reshaping tech and work.

Quantum Computing: Unlocking a New Frontier in Technology

Unlock the power of quantum computing - explore how machines using qubits are set to solve today’s toughest problems and reshape tech.

How to (Data Recovery) Recover Deleted Files ?

Get back lost files fast - our guide shows simple, effective ways to recover deleted or corrupted data from your devices.

How to Speed up a Slow Computer ?

Make your sluggish PC fast again: find easy fixes to boost speed and get back to work.

AR, VR, MR, XR How it works ?

Explore AR, VR & MR technology - how immersive realities are transforming how we see, work and interact.

27 Parts of a Laptop Internal and External, With Explained

Get to know every part of a laptop - from screen and keyboard to CPU and storage and understand what makes it work.

Why Computer Store Data 0 or 1, Full Detail ?

See how computers actually store everything as 0s and 1s - the hidden binary logic behind all your data.

Data Storage

Learn the difference between CPU, GPU, TPU & NPU - the processors powering everything from general apps to cutting-edge AI.

What is Ping, Example, How it works ?

Find out why your internet would say ‘ping’ - and how to test if your device is talking to the network and how long it takes.

What things should check when get a new laptop?

Ready for a new laptop? Discover what to look for, how to choose smart, and which specs matter the most.

Human-Computer Interaction (HCI).

Dive into human-computer interaction — learn how design, psychology and tech come together to make systems easier, smarter.

Journal of Cloud Computing Advances.

Explore cloud computing - how remote servers power storage, apps and work-life from anywhere.

Cyber Security Basics, Key Concepts, Network Security, Endpoint Security, Data Security.

Master cyber-security - protect your devices, data and privacy from hackers, malware and ever-growing online threats.

1. What is firmware and how does it differ from software?

Firmware is a permanent set of instructions stored on hardware components, such as routers or BIOS chips. It differs from software as it directly controls hardware functions at a lower level.

2. Why does a computer slow down over time even with good hardware?

Background processes, software updates, registry buildup, and fragmented files can gradually reduce performance despite strong hardware specifications.

3. What is the difference between a process and a thread?

A process is an independent running program, while a thread is a smaller task within that process. Threads share resources and improve efficiency in multitasking.

4. How does a CPU handle multiple tasks at once?

Modern CPUs use multi-core processing and time-slicing to switch between operations so rapidly that it appears to perform many tasks simultaneously.

5. What is cache memory and why is it important?

Cache memory stores temporary data and instructions that the CPU frequently accesses, reducing delay and boosting processing speed.

6. How does BIOS function during system startup?

The BIOS performs system checks, detects connected devices, and initializes essential hardware before handing control over to the operating system.

7. Why are SSDs faster than HDDs?

Unlike HDDs that use spinning platters, SSDs rely on flash memory with no moving parts, enabling quicker data access and boot times.

8. What is virtualization in computers?

Virtualization allows one physical system to create and manage multiple virtual environments, improving efficiency and scalability in computing.

9. What are computer interrupts?

Interrupts signal the CPU to stop its current task and immediately address important events, ensuring fast response to hardware or software requests.

10. What is the use of thermal paste on CPUs?

Thermal paste fills tiny gaps between the CPU and heat sink, improving heat transfer and preventing overheating during intensive operations.

Narinder Kumar

Hi, I am Narinder Kumar owner of Blogs Buz and i am passionate tech writer and blogger who specializes in creating high-quality tutorials, guides, and resources for online tools, web development, and digital marketing. Always delivering practical insights for users.