Computer Organization Computer Architecture Instruction Set

An overview of basic operational concepts in computer organization and architecture, detailing the fetch-decode-execute cycle, memory, and registers such as PC, MAR, MDR, IR, and the control unit and ALU.

Explore the hardware inside a computer, including the motherboard, central processing unit, memory, hard drives, optical drives, power supply, adapter cards, cables, and common ports.

Discover how a computer breaks complex tasks into simple calculations and processes data quickly with the CPU. Learn about input, output, memory, and core components like the motherboard and RAM.

Outline four main types of computers—personal computers (including laptops and tablets), mainframes, microcomputers, and supercomputers—and their typical uses in homes, offices, banks, and industries.

Trace the history of computing from human calculation and mechanical devices to programmable machines, punch-card automation, and early electronic computers like ENIAC, ending with portable and commercial systems.

Explore the classification of memory, distinguishing primary memory from secondary storage, and learn about RAM, ROM, DRAM, and common secondary storage like hard disks, USB drives, CDs, and DVDs.

Explore the new age of memories, including flash memory and USB memory, and their non-volatile data storage across devices, plus memory hierarchy and CPU basics.

Explore cloud computing and virtualization, showing how services reduce costs, store data, and deliver resources via public, private, and hybrid models, with iaas, paas, saas at the core.

Explore the foundations of information communication technology by examining hardware, software, and networks, and see how CPU, RAM, operating systems, and routers enable global communication and data sharing.

Explore the difference between system software and application software, and learn how system software runs the computer while application software performs user-specific tasks.

Explore how data is represented in digital systems, from bits and bytes to kilobytes, megabytes, and gigabytes, through binary encoding and keyboard input.

Explore essential information technology troubleshooting steps, including rebooting, reinstalling software, and handling hardware or software issues, and applying Windows updates to identify and resolve problems.

Explore structured data, its well-defined schema, and how rows, columns, and fields in databases and spreadsheets enable easy storage, indexing, and retrieval for analytics and machine learning.

Explore how associative mapping overcomes direct mapping limits by using tag, lines, and sets to manage cache hits and misses, with set-associative configurations.

Open task manager and use performance information and tools to check cache memory performance, CPU and memory usage via resource monitor for an overview.

Learn how to clear Windows cache memory by removing temporary files to speed up your PC, including how to select and delete files and handle deletion prompts.

Explore addressing modes, including direct, indirect, immediate, and register, and how they specify operands, along with the fetch-decode-execute cycle and program counter in computer architecture.

Create and manage Windows user accounts through the Control Panel, choosing standard or administrator roles, setting passwords and pictures, and deleting accounts when needed.

Discover how to locate recently downloaded files on your system by using the downloads folder, documents, or recent files, then open or show in folder.

this lecture teaches how to defrag a system by analyzing disk partitions, selecting the target partition, running fragmentation analysis, and optimizing file placement across drives for monthly maintenance.

Learn what the recycle bin is, how deleted files move there, and how to restore or permanently delete them in Windows. Understand the bin’s location and how to empty it.

Learn how to uninstall a program in Windows 10 by navigating to uninstall, selecting the app, confirming removal, and verifying that it is completely deleted.

Learn how to remove unwanted emails from Gmail by managing subscriptions, unsubscribing from unwanted messages, selecting multiple emails, deleting them, and moving messages to trash.