Antivirus' Information and Communication Technology Centre

Antivirus' Information and Communication Technology Centre Our Offer: We train in computer, installation, contract, sales & repairs all kind of contract. Address: No. 173, Memeh by Old Lagos Asaba Road.
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Bring your wards and children for holiday training.
01/06/2026

Bring your wards and children for holiday training.

💡 Today’s Topic: (Write your topic here Mouse Function and Types, e.g.,)🧠 Learn in simple and easy way: ✔ (Point 1)✔ (Po...
11/05/2026

💡 Today’s Topic: (Write your topic here Mouse Function and Types, e.g.,)

🧠 Learn in simple and easy way: ✔ (Point 1)
✔ (Point 2)
✔ (Point 3)

🎯 This post is specially for beginners and students who want to learn Computer Science.

👉 If you like this series: ❤️ Like this post
💬 Comment “Next”
🔁 Share with your friends

📢 Follow my page for more easy and practical learning

✍️ Darlington Osunde
Computer Science Teacher


11/05/2026

How to draw a wall clock in coreldraw.

Stay Smart
11/05/2026

Stay Smart

14/04/2026

Borders and shading

The Microsoft Excel worksheet.A standard Microsoft Excel worksheet contains 1,048,576 rows and 16,384 columns (from colu...
02/02/2026

The Microsoft Excel worksheet.

A standard Microsoft Excel worksheet contains 1,048,576 rows and 16,384 columns (from column A to XFD).

This limit has been in place since Excel 2007 and applies to .xlsx, .xlsm, and .xlsb file formats.

You can reach the last row by pressing Ctrl + Down Arrow.

Microsoft Support
+4
Key Details Regarding Rows:

Total Rows: 1,048,576.

Total Columns: 16,384.

Navigation Shortcut: `Ctrl` + `Down Arrow` takes you to the last row.

Older Versions: Excel 2003 and earlier versions were limited to 65,536 rows.

Some computer ports are used to connect external devices like keyboards, mouse, monitor, speakers, and internet cables. ...
02/02/2026

Some computer ports are used to connect external devices like keyboards, mouse, monitor, speakers, and internet cables.

Each port has a specific type and purpose, helping your computer communicate, display, transfer data, and play audio/video smoothly.

👉 Knowing ports = smarter device connections.





Let's go through this carefully 🙏..What Really Happens When You Connect to Wi-Fi?Ever wondered what’s going on behind th...
01/02/2026

Let's go through this carefully 🙏..

What Really Happens When You Connect to Wi-Fi?

Ever wondered what’s going on behind the scenes the moment you tap “Connect” on Wi-Fi? This visual breaks it down step by step—from discovery to full internet access.

The journey looks like this:

1️⃣ Wi-Fi Discovery – Your device scans for SSIDs and signal strength
2️⃣ Authentication & Association – Secure connection to the access point
3️⃣ DHCP (DORA) – Get an IP address (Discover → Offer → Request → Acknowledge)
4️⃣ ARP Request – Find the gateway’s MAC address
5️⃣ DNS Resolution – Translate names into IP addresses
6️⃣ Packet Transmission – Data starts moving
7️⃣ Firewall & NAT – Security checks and address translation
8️⃣ Internet Access – You’re online

Key takeaway:
Wi-Fi isn’t just a signal — it’s IP addressing + gateway + DNS + security working together.

When things break… where do you troubleshoot first?
DHCP, DNS, or the Gateway?

What's the main function of an operating system?🤔
01/02/2026

What's the main function of an operating system?🤔

This is how Mobile Internet Works (4G / 5G) From SIM card to mobile tower to internet server – learn how mobile data wor...
31/01/2026

This is how Mobile Internet Works (4G / 5G)

From SIM card to mobile tower to internet server – learn how mobile data works.

Simple explanation for students and beginners 🖥️ 📱

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