Ehsan Ul Haq
Ehsan Ul Haq is the Editor-in-Chief of theCoreiTech. Ehsan leads the editorial review process and checks the Computer Basics, Computer Hardware, and Computer Networking guides for accuracy, sourcing, and clarity before publication.
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Computer Hardware
How Computer Mice Work: Sensors and Tracking
How computer mice work: optical and laser sensors, how the sensor images a surface, DPI and polling rate, acceleration and…
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Computer Hardware
Case Fans Explained: Airflow, Static Pressure, and Setup
Case fans explained: airflow vs static pressure fans, 120mm vs 140mm sizes, PWM control, CFM ratings, bearing types, and intake/exhaust…
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Computer Hardware
Monitor Panel Types Explained: IPS, VA, TN, and OLED
Monitor panel types explained: TN, IPS, VA, and OLED compared on color accuracy, contrast, response time, viewing angles, and best…
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Computer Hardware
Monitor Refresh Rate Explained: Hz and Smoothness
Monitor refresh rate explained: what Hz means, refresh rate vs frame rate, the 60Hz to 500Hz tiers, VRR like G-Sync…
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Computer Hardware
Computer Hardware Guide: Every Component Explained
A complete guide to computer hardware: the CPU, RAM, storage, GPU, motherboard, power supply, cooling, and peripherals, with links to…
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Computer Basics
The Four Functions of a Computer: Input, Processing, Storage, and Output Explained
Every computer performs 4 core functions: input, processing, storage, and output. This guide explains each function with device examples, real…
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Computer Basics
Hardware vs Software: Definitions, Differences, and How They Work Together
A precise technical guide defining hardware and software, explaining their 5 key differences, and detailing how abstraction layers, device drivers,…
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Computer Basics
Why Are Computers Important? 8 Domains Where Computers Are Essential
Computers are important because they automate complex tasks and process data at billions of operations per second. This guide covers…
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Computer Basics
How Do Computers Work? The Complete Technical Explanation
A complete technical explanation of how computers work, covering the fetch-decode-execute cycle, CPU pipeline, instruction set architecture, memory hierarchy, and…
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Computer Basics
Motherboard Explained: Components, Form Factors, Chipsets, and Sockets
A motherboard is the primary circuit board that connects all computer components. This guide explains motherboard components, chipsets, form factors,…
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Computer Basics
Input Devices: 8 Types, Technical Specs, and How Each Works
An input device is hardware that sends data to a computer for processing. This guide covers 8 types of input…
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Computer Basics
Computers vs Smartphones: 7 Key Technical Differences Explained
Computers and smartphones differ in CPU architecture, power consumption, RAM capacity, OS design, input methods, expandability, and use-case optimization. This…
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Computer Basics
What Is a CPU? Definition, Components, Clock Speed, and Cores Explained
A CPU is the processor that executes instructions in a computer. This guide covers what a CPU is, how it…
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Computer Basics
Output Devices: 7 Types, Technical Specifications, and How Each Works
An output device converts processed data from a computer into a human-perceivable form. This guide covers 7 output device types,…
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Computer Basics
BIOS vs UEFI: 7 Key Differences, Secure Boot, and GPT vs MBR
BIOS and UEFI are firmware interfaces that initialize hardware before an OS loads. This guide defines both, covers 7 key…
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Computer Basics
What Is RAM? How It Works, DDR4 vs DDR5, and Capacity Guide
RAM is volatile memory that holds data the CPU actively uses. This guide covers what RAM is, how it works,…
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Computer Basics
Primary vs Secondary Storage: Definitions, Speed, and Storage Hierarchy
Primary storage holds data the CPU actively uses. Secondary storage retains data permanently. This guide defines both types, compares speed…
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Computer Basics
What Are Supercomputers? Architecture, Speed Records, and Applications
A supercomputer is the highest-performance computing system of its era. This guide covers how supercomputers work, current speed records, their…
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Computer Basics
What Are Embedded Computers? Definition, Examples, and Applications
An embedded computer is a dedicated processor integrated into a device for a specific function. This guide covers embedded computer…
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Computer Basics
Analog vs Digital Computers: Definitions, Differences, and Modern Use
Analog computers process continuous signals. Digital computers process discrete binary values. This guide defines both, covers 6 key differences, and…
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Computer Basics
Mini PCs vs Workstations vs All-in-One Computers: A Technical Comparison
Mini PCs, workstations, and all-in-one computers serve different professional needs. This guide defines all 3 types, compares their specs and…
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Computer Basics
Quantum Computers Explained: Qubits, Gates, and Current Capabilities
A quantum computer uses quantum mechanical phenomena to process information. This guide explains qubits, superposition, entanglement, current systems, and where…
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Computer Basics
Desktops vs Laptops vs Tablets: Differences, Specs, and Which to Choose
Desktops, laptops, and tablets differ in performance, portability, and expandability. This guide compares all 3 types with precise specs and…
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Computer Basics
Gaming PCs vs Productivity PCs: Hardware Priorities and Key Differences
Gaming PCs prioritize GPU performance and high-refresh displays. Productivity PCs prioritize CPU cores and RAM. This guide covers the 6…
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