Nizam Ud Deen
Muhammad Nizam Ud Deen Usman is the founder of theCoreiTech and the author of The Local SEO Cosmos. He has worked in search since 2014 as an SEO consultant for eCommerce stores and local businesses, specialising in eCommerce SEO, local SEO and technical SEO, and runs SEO Academy and the SEO Community from Multan, Pakistan. He also founded ORM Digital Solutions, a digital agency serving medium and large businesses, and holds a degree from the University of Education, Lahore (Multan Campus). Plerdy lists him among its Best 20+ SEO Experts in Pakistan. Nizam started theCoreiTech in 2012 to make computers easier to understand and use for everyone. More of his work is at nizamuddeen.com.
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Computer Basics
What is Phishing? Types, How It Works, and How to Identify Attacks
Phishing is a social engineering attack that uses deceptive messages to steal credentials, financial data, or install malware. This guide…
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Computer Basics
What is the Internet? How It Works and Who Controls It
The Internet is a global network of interconnected computers that exchange data using standardized protocols. This guide covers how the…
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Computer Basics
What is a Firewall? Types, How It Works, and Configuration Basics
A firewall is a security system that monitors and controls incoming and outgoing network traffic based on rules. This guide…
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Computer Basics
Why Antivirus Software is Important: How It Works and Its Limitations
Antivirus software detects and removes malware by scanning files against known signatures and monitoring behavior. This guide covers how antivirus…
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Computer Basics
Online Safety for Beginners: 10 Practices That Protect Your Computer
Online safety involves protecting personal data and devices from cyber threats. This guide covers 10 foundational practices that protect a…
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Computer Basics
LAN vs WAN vs MAN: Network Types Defined and Compared
LAN, WAN, and MAN are 3 network types classified by geographic scale. This guide defines all 3, covers PAN and…
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Computer Basics
What is DNS? How the Domain Name System Translates Names to IP Addresses
DNS translates human-readable domain names into IP addresses. This guide covers how DNS works, the DNS resolution process, DNS record…
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Computer Basics
What is Wi-Fi? Standards, Frequencies, and How Wireless Networking Works
Wi-Fi is a wireless networking technology using radio waves to connect devices to a network. This guide covers how Wi-Fi…
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Computer Basics
What is an IP Address? IPv4, IPv6, and How IP Addressing Works
An IP address is a numerical label assigned to every device on a network. This guide explains IPv4 and IPv6…
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Computer Basics
How Data Travels on the Internet: Packets, Routing, and Protocols Explained
Data travels on the Internet as packets routed through networks using TCP/IP protocols. This guide explains packet switching, IP routing,…
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Computer Basics
Evolution of Computers: From ENIAC to Artificial Intelligence
Computers evolved from room-sized vacuum tube machines to nanometer-scale processors in 80 years. This guide covers all 5 generations of…
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Computer Basics
History of Operating Systems: From Batch Processing to Modern OS
Operating systems evolved from batch processing systems in the 1950s to modern multitasking OSes handling billions of devices. This guide…
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Computer Basics
The Invention of the Microprocessor: Intel 4004 to Modern CPUs
The microprocessor placed an entire CPU on a single chip, transforming computing permanently. This guide covers the Intel 4004 in…
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Computer Basics
The Rise of Personal Computers: From Altair 8800 to the Modern PC
Personal computers transformed from hobbyist kits in 1975 to essential tools used by 4 billion people today. This guide covers…
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Computer Basics
Impact of the Internet on Computing: How Connectivity Changed Everything
The Internet transformed computers from standalone machines into connected nodes of a global network. This guide covers how the Internet…
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Computer Basics
Future of Computing: AI Chips, Quantum, Neuromorphic, and Edge Computing
The future of computing includes AI-specialized chips, quantum processors, neuromorphic computing, and edge inference. This guide covers 5 computing paradigms…
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Computer Basics
The Role of AI in Computers: NPUs, Inference, and AI-Specialized Hardware
AI in computers requires specialized hardware beyond the CPU. This guide covers NPUs, GPU matrix cores, on-device inference, TOPS measurement,…
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Computer Basics
Wearable Computers: Types, Sensors, Processors, and Market Trends
A wearable computer is a computing device worn on the body that collects, processes, and displays data. This guide covers…
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Computer Basics
Internet of Things (IoT) Explained: Architecture, Protocols, and Security Risks
The Internet of Things connects physical devices to the internet for data collection and control. This guide covers IoT architecture…
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Computer Basics
Computer Basics: The Complete Guide to All Foundational Topics
The complete Computer Basics hub — 59 articles covering what computers are, components, types, OS, networking, security, history, and future…
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Computer Basics
What is a Computer? A Complete Technical and Functional Guide
A computer is an electronic device that processes data using hardware and software. This guide explains what a computer is,…
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Computer Basics
Sustainable Computing: Data Center Energy, E-Waste, and Green IT Practices
Sustainable computing reduces the environmental impact of technology. This guide covers ICT carbon emissions, data center energy use, PUE, e-waste…
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Computer Basics
Neuromorphic Computing: How Brain-Inspired Chips Work and What They Can Do
Neuromorphic computing uses artificial neurons and synapses modeled on the brain to process data with extreme energy efficiency. This guide…
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Computer Basics
Von Neumann Architecture: 5 Components, Bottleneck, and Harvard Comparison
Von Neumann architecture is a computer design model where program data and instructions share the same memory. This guide covers…
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