IT Basic Concepts - Data, Storage & Transmission

If you’re new to Information Technology (IT), this video is the perfect place to start!
You’ll get a solid understanding of IT basics, including:

• The broad impact of IT on modern life
• The history of computer technology
• Data storage, retrieval, and transmission methods
• Types of data transmission: parallel vs serial

Understanding Data and Its Movement ​

IT isn’t just about computers - it’s about how data moves and is processed. This lecture covers essential methods for storing, retrieving, and transmitting data efficiently.

For example, here’s a quick look at serial vs parallel data transfer using a simple analogy in code:

# Serial: sending data one by one
for bit in data:
    send(bit)

# Parallel: sending multiple bits at once
send(data)  # all bits sent together

Learn Data Manipulation Languages ​

A key part of IT is learning how to handle data. Data Manipulation Languages (DML) allow you to retrieve, update, and manage data in databases easily.
Example in SQL:

-- Retrieve all users
SELECT * FROM Users;

-- Update a user record
UPDATE Users SET status='active' WHERE id=1;

Academic, Commercial, and Ethical Implications of IT ​

Understanding IT also means knowing its broader impact:

• Academically: IT shapes modern education and research
• Commercially: IT drives business efficiency and innovation
• Ethically: IT requires responsible use, especially with data privacy and cybersecurity

Watch the full lecture here to get a complete foundation:

👆 Click The Image To Watch The Video 👆