Technology has become so familiar that we barely think about what makes it work.

We make video calls, stream movies, use AI, send files across continents and access information within seconds.

Behind these simple actions is a vast system of radio frequencies, microchips, fibre optic cables, data centres and communication networks.

On Saturday, April 25, 2026, Engr Uzodimma Odimuko, Class of 2000, revealed this technological system to DIAA members through his presentation “Beyond the Handset: Scaling Networks to Connect Machines and Intelligence“.

Here are five lessons from the presentation.

1. Successful Companies Continue to Adapt

Nokia is remembered by many people as one of the companies that dominated the mobile phone industry.

Uzo explained that Nokia had operated in industries such as paper and rubber before becoming one of the world’s major telecommunications companies.

The ability to change is important.

A company can become very successful at one technology and still struggle when the market changes. Nokia experienced this when smartphones transformed the mobile phone industry.

The company lost its dominant position in handsets, but Nokia did not disappear. It shifted its attention to telecommunications infrastructure, networking equipment and cloud technology.

Past success gives us experience and resources. It does not guarantee future relevance.

Markets change. Customer behaviour changes. Technology changes.

We have to keep watching what is happening around us and develop the ability to respond before change makes our existing skills or business models less valuable.

2. The Technology We Use Every Day Depends on Enormous Infrastructure

A smartphone appears simple when we hold it in our hands.

But the system behind it is not simple.

Uzo explained how telecommunications begins with the electromagnetic spectrum. Governments regulate this spectrum and allocate frequencies to telecommunications companies and other users.

Those frequencies allow information to travel wirelessly.

Then there are microchips.

Modern chips contain billions of tiny electronic switches known as transistors. These transistors form the logic gates that allow computers and other electronic devices to process information.

The cloud is sometimes described as though information floats around the internet. Uzo explained that the cloud consists of physical infrastructure: huge data centres containing servers, storage equipment and networking systems.

These data centres are connected across countries and continents through high capacity networks, including submarine fibre optic cables running along the seabed.

When you send a WhatsApp message from Lagos to someone in London or New York, several layers of infrastructure are involved.

What appears effortless to you depends on decades of scientific research, massive investments and technological equipment spread across continents.

3. Microchips Have Become Part of Global Politics

Advanced computer chips contain billions of microscopic transistors.

Uzo discussed ASML, the Dutch company that produces the extreme ultraviolet lithography systems used in manufacturing the world’s most advanced semiconductors.

That technology has become important because advanced chips power AI systems, telecommunications infrastructure, military technology, data centres and many other critical industries.

Countries have started treating access to semiconductor technology as an issue of national security.

The United States and some of its allies have restricted China’s access to certain advanced chipmaking technologies as competition between the two countries expands into artificial intelligence.

This tells us something about the modern economy.

Resources that determine national power are changing.

Oil, minerals, factories and military equipment are still important. Computing power, semiconductors, AI, telecommunications infrastructure and data are increasingly important too.

Technology is now shaping international politics as much as international politics is shaping technology.

4. The Next Communication Revolution Will Connect Machines

3G made mobile internet possible.

4G helped services such as YouTube, Instagram, Spotify and other data intensive applications become part of everyday life.

5G is taking communications in another direction.

Mining companies can operate enormous autonomous trucks. Ports can automate parts of their operations. Warehouses can use autonomous mobile robots to move goods.

These machines need to communicate quickly with other machines and computer systems.

The future of telecommunications extends far beyond people making calls or browsing the internet.

Factories, vehicles, robots, sensors, ports, mines and other infrastructure will increasingly communicate through networks.

The handset may eventually become only one small part of a much larger connected world.

5. Young People Need Depth, Curiosity and Strong Foundations

Uzo mentioned subjects like data science, networking, cybersecurity and DevOps as areas young Dorityans should study if they want careers in the global technology industry.

He advised young people to choose an area of study and build deep knowledge in that area instead of trying to pursue everything at the same time.

New courses, certifications, programming languages and career opportunities appear every week.

Trying to learn everything can produce shallow knowledge of many subjects.

Curiosity helps us explore. Focus allows us to develop expertise.

Much of the science behind Uzo’s presentation could be traced back to concepts taught in secondary school physics.

Students may sometimes wonder why they have to learn subjects that appear disconnected from their future careers.

Years later, those same concepts may become the foundation for understanding telecommunications, engineering, computing or another profession.

Memorable Quote from the Presentation

“Learn every day.”

DIAA Member’s Corner contains 21 alumni profiles, 238 interview questions and almost 11,000 words of answers.

Those numbers tell us something about the section.

The Numbers

There are currently 21 featured members representing 14 graduation classes.

Together, they have answered 238 questions, an average of 11.3 questions per interview. The median is 10 questions, while individual interviews range from 9 to 15 questions.

Their answers contain about 10,878 words, giving an average of exactly 518 words per member.

The earliest graduation class represented is 1997. The most recent is 2018.

Who was featured first?

The first featured member is Ugochinyere Nkemdirim, Class of 2013. She was featured in May 2019. The newest featured member is  Professor Chinelo Ezeocha, Class of 1997. She was featured in August 2026.

Longest Interviews

The five longest interviews are:

1. Ikechukwu Uzoma: 2,045 words across 10 questions, averaging 204.5 words per answer.
2. Chimdi Ifeakanwa: 1,298 words across 15 questions, averaging 86.5 words per answer.
3. Professor Chinelo Ezeocha: 1,069 words across 10 questions, averaging 106.9 words per answer.
4. Uzoma Ekwebelem: 993 words across 10 questions, averaging 99.3 words per answer.
5. Chijioke Okogbue: 687 words across 15 questions, averaging 45.8 words per answer.

Ikechukwu Uzoma’s answers account for 18.8% of all the words written by featured members.

Who gave the longest single answer?

The record belongs to Chimdi Ifeakanwa.

His answer to the question, “Which of your project was the most challenging and why?” contained approximately 331 words.

He described his work on an early SAP deployment using IA-64 bit systems.

Professor Ezeocha gave detailed answers to most questions, but none displaced Chimdi’s record.

Who was asked the most questions?

Three members jointly hold the record with 15 questions each:

• Shalonda Ofoegbu
• Chijioke Okogbue
• Chimdi Ifeakanwa

Dike Ndukwe and Okechukwu Nwankwo follow with 14 questions each.

Ujuka Iloabuchi and Ugochinyere Nkemdirim received the fewest questions, with nine each.

Which graduation class appears most often?

• 1997: 4 members
• 1999: 1 member
• 2000: 3 members
• 2001: 1 member
• 2002: 2 members
• 2004: 1 member
• 2007: 1 member
• 2009: 1 member
• 2011: 2 members
• 2012: 1 member
• 2013: 1 member
• 2014: 1 member
• 2017: 1 member
• 2018: 1 member

The Class of 1997 is the most represented class with four members.

The Class of 2000 follows with three.

Together, these two classes provide seven of the 21 featured members, exactly one third of all Member’s Corner profiles.

Member’s Corner leans towards earlier graduates

Twelve of the 21 featured members graduated between 1997 and 2004.

That is about 57.1% of all profiles.

More members of the younger generation need to feature.

If you’re a member of the 2015 to 2026 sets, this is an opportunity to introduce yourself to DIAA members.

To feature, fill this form: https://dorityalumni.org/members-corner-interest-form/

What do the interviews keep talking about?

The questions change from one member to another, but several subjects appear repeatedly.

• All 21 members were asked a question that allowed them to give advice, guidance or some form of mentorship.
• Around 20 members discussed memories of Dority or the influence the school had on them.
• At least 16 members discussed how they would describe themselves.
• Around 17 members discussed achievements, awards or important professional milestones.
• Around 17 members discussed motivation, inspiration or what influenced their choices.
• About 15 members discussed subjects, causes or areas of work they care deeply about.
• Around 12 members discussed their future plans.

The advice question may be the most important one

Every featured member was given an opportunity to give advice.

Every interview eventually asks a similar question: What have you learnt that could help someone coming after you?

This could be the most important aspect of Member’s Corner beyond profiling members.

Would you like to be featured in Member’s Corner?

To indicate interest, fill this short form: https://dorityalumni.org/members-corner-interest-form/

Building a business from nothing involves uncertainty, risk, rejection and many difficult days.

On Saturday, June 27, 2026, Uzoma Ekwebelem (Class of 2002) delivered a presentation titled “The Courage to Build: Lessons from the Boardroom to Entrepreneurship” as part of DIAA’s monthly Knowledge Sharing Series.

She spoke about her decision to become an entrepreneur and explained how she built Arya Marketplace, a business-to-business platform connecting African manufacturers, wholesalers and distributors with buyers across the continent.

Here are five lessons from her presentation.

1. Dority Influenced Us

According to Uzoma, Dority taught her discipline.

She was expected to arrive early to school, complete her assignments, attend evening lessons and sometimes return for Saturday classes.

These demands felt difficult at the time. But Uzoma later realised that they helped her develop discipline and resilience.

The lesson is that education goes beyond the subjects taught in the classroom.

Schools influence our habits and attitudes, and the discipline we complain about as students may become our greatest advantage as adults.

2. Companies Grow Through Systems

Uzoma spent about fifteen years working at IBM and Oracle.

Before entering the corporate world, she believed that business success came mainly from having brilliant people.

She soon realised that brilliant people weren’t enough. Successful companies build systems that continue to function when employees and leaders change.

Many Nigerian businesses revolve around one person. The founder makes every decision, supervises every task and holds most of the important information.

When that person is unavailable, work slows down or stops completely.

A business operating this way cannot grow beyond the capacity of its founder.

In large corporate organisations, employees receive responsibilities and are assessed according to agreed Key Performance Indicators. They aren’t followed around and told what to do every hour.

A business becomes scalable and successful when its important activities can continue without the founder personally managing every step.

3. Growth Requires Discomfort

After working at IBM and Oracle for many years, Uzoma faced an important decision.

She could remain in a successful corporate career with a good salary and a predictable path. Or she could leave that security and build something of her own.

Uzoma decided that she would rather try and fail than reach a point in her life where she regretted not trying.

Entrepreneurship gave her freedom, but it also brought uncertainty and financial risk.

There was no guarantee that her business would succeed.

Meaningful growth requires us to do something unfamiliar. Growth doesn’t happen within our comfort zone.

We may need to accept a new responsibility, enter a different industry, acquire a difficult skill or attempt a project with an uncertain outcome.

4. Successful Businesses Solve Real Problems

Uzoma’s interest in engineering, manufacturing and business led her to the problem Arya Marketplace was created to solve.

Aba produces shoes, clothes, bags and many other products. However, local manufacturers struggle to reach buyers outside their immediate environment.

Arya Marketplace solved this problem by connecting Aba manufacturers with buyers across Nigeria.

The company has onboarded more than 1,000 merchants, developed a buyer community of over 1,000 people and listed approximately 7,500 products.

The long-term plan is to extend the business model to other commercial centres in Nigeria and across Africa.

We don’t have to search far away for business opportunities.

Some of the most valuable opportunities are hidden inside the problems affecting our communities.

5. Resilience, Relationships and Reputation Matter

Uzoma made us understand that while talent may create opportunities for you, resilience helps you make the most of those opportunities.

Resilience enables you to continue working when things go wrong. It helps you recover from rejection and solve unexpected problems.

Relationships also matter. Uzoma’s move to Oracle resulted from a recommendation by a former IBM colleague.

Every person who comes into our lives impacts us in one way or another. They may teach us, recommend us for opportunities, support our work or connect us with others.

Reputation is also important. A good reputation takes years to build but can be destroyed quickly.

People remember how we treat them, whether we keep our promises and whether we act with honesty when nobody is watching.

Resilience, relationships and reputation produce results gradually, with their value increasing over time.

Memorable Quote from the Presentation

“Our best chapter is not written yet.”

Food is an important part of life.

It gives us energy, supports our health and brings families and communities together.

But food can also expose us to disease, damage the environment and contribute to waste when it is produced, handled or consumed irresponsibly.

On Saturday, July 25, 2026, Professor Chinelo Vanessa Ezeocha (Class of 1997), a professor of Food Science and Technology at Michael Okpara University, Umudike, delivered a presentation titled “Safe, Healthy, and Sustainable Diets” as part of DIAA’s monthly Knowledge Sharing Series.

She explained how food choices affect our health, local economy and environment.

1. A Good Diet Has Three Dimensions

Professor Ezeocha divided the subject into three connected dimensions: safe diets, healthy diets and sustainable diets.

A safe diet contains food that does not cause harm when it is prepared and consumed as intended.

A healthy diet provides the energy and nutrients the body needs. It should be balanced, varied and appropriate for a person’s age, health, activity level and physiological needs.

A sustainable diet meets our present nutritional needs without preventing future generations from meeting theirs.

These three dimensions must work together.

Food may be nutritious but unsafe because it is contaminated. It may be safe and nutritious but unsustainable because its production damages the environment or wastes scarce resources.

2. Food Safety Starts Before Food Reaches Our Plates

Food safety does not begin in the kitchen.

It starts with production and continues through harvesting, transportation, processing, storage, preparation and service.

Professor Ezeocha identified three major categories of food hazards.

Biological hazards include bacteria, viruses, parasites and fungi. Physical hazards include stones, glass, hair, insects and pieces of metal. Chemical hazards include pesticide residues, heavy metals, natural toxins and unsafe substances from processing or packaging materials.

Poor handling at any stage can turn good food into dangerous food.

She advised members to wash their hands before preparing meals, use clean water, sanitise food-contact surfaces and keep raw food separate from cooked or ready-to-eat food.

Perishable foods should be stored at safe temperatures. Meat, fish, eggs and other foods should be cooked properly. Spoiled, mouldy, expired or adulterated food should be avoided.

We can’t determine food safety by appearance alone. Food may look and smell normal and still contain harmful microorganisms or chemicals.

3. Healthy Eating Is About Balance, Variety and Moderation

The Nigerian Food Guide shared in Professor Ezeocha’s presentation.

Professor Ezeocha used the food pyramid to explain the proportions in which different food groups should be consumed.

A healthy diet should contain appropriate amounts of whole grains, roots and tubers, fruits, vegetables, protein foods, healthy fats and water.

She encouraged members to eat the rainbow by including fruits and vegetables of different colours in their meals. Different colours often represent different nutrients and protective compounds.

She also advised members to favour minimally processed foods and limit excess salt, added sugar, sweetened drinks, saturated fats, repeatedly fried foods, ultra-processed foods and excessive alcohol.

People who enjoy red meat do not necessarily have to stop eating it completely. They can choose leaner portions and reduce fatty cuts.

Palm oil contains saturated and unsaturated fats and should be used in moderation.

The lesson was simple: healthy eating is about making better food choices and avoiding excess.

4. Indigenous Foods Deserve More Attention

Pigeon pea (Fiofio), one of the indigenous Nigerian crops featured in Professor Ezeocha’s presentation.

Many Nigerians overlook indigenous foods while embracing imported or heavily processed alternatives.

Professor Ezeocha encouraged greater use of locally produced legumes, cereals, roots, tubers, fruits and vegetables.

Foods such as pigeon pea and African yam bean can provide valuable nutrients, support local farmers and reduce the environmental costs associated with transporting food over long distances.

She also spoke about collaborative research to improve the nutritional quality, cooking time and attractiveness of products made from underutilised indigenous crops.

Supporting local food improves our diets.

It also creates economic opportunities for farmers, preserves biodiversity and protects valuable food knowledge that could otherwise disappear.

5. Food Waste and Sustainable Eating Require Us to Think Beyond Ourselves

Food waste goes beyond throwing away leftovers.

Food may be lost during harvesting, transportation, storage, processing and marketing before it reaches the consumer.

Unreliable electricity worsens the problem in Nigeria. Traders and households may lose meat, fish, vegetables and other perishable foods because they cannot keep them at safe temperatures.

Better harvesting methods, improved storage, reliable electricity, meal planning and sensible portion control can reduce food loss and waste.

Leftovers should be stored and reheated safely or put to productive use where possible.

When we waste food, we also waste the land, water, energy, labour and money used to produce it.

Memorable Quote from the Presentation

“Food must not just be available. It must be safe, nutritious, affordable, and produced in ways that protect the environment.”