What you will learn

• What a computer is and why it is useful in school and community.
• Main parts of a computer and their jobs (hardware and software).
• Types of computers you meet in Kenya.
• Basic care, safety and simple troubleshooting.
• Short activities to practise what you learn.

What is a computer?

A computer is a machine that receives information (input), processes it, stores it and gives out results (output). It helps us learn, type documents, search the internet and do many tasks faster.

Example in Kenya: Using a laptop in class for school projects, using a smartphone to check weather for farming, or using M-Pesa on a phone to send money.

Main parts of a computer (simple)

Hardware vs Software

- Hardware: The parts you can touch (keyboard, screen, mouse).
- Software: The programs you cannot touch (apps like a web browser, games, or the operating system such as Windows, Android).

Think: Hardware is the body; software is the brain's instructions.

Types of computers you meet

• Desktop: Big screen, used in computer labs at school.
• Laptop: Portable, students use for homework.
• Tablet: Touch screen, used for e-learning and reading.
• Smartphone: Small, used for calls, M-Pesa, internet and apps.

How a computer works (simple steps)

1. Input: You give data (type on keyboard, tap on screen).
2. Process: The computer follows instructions (software) to work with data.
3. Store: It saves data so you can open it later.
4. Output: It shows results (on screen, print or sound).

Uses of computers in Kenya (young students)

• School work: writing assignments, research and presentations.
• Communication: emailing teachers, using WhatsApp to share notes.
• M-Pesa and banking: checking balances and sending money (on phones).
• Agriculture: getting weather updates and market prices.
• Learning apps: practise Maths, English, Kiswahili and science.

Safety and care (easy rules)

• Avoid eating or drinking near the computer — water and food can damage it.
• Keep the computer away from direct sun and dust when possible.
• Switch off and unplug before cleaning — use a dry cloth.
• Use strong passwords and do not share them with strangers.
• Ask a teacher or technician before installing apps or USB drives.
• Do not open the computer cover — leave repairs to a technician.

Simple troubleshooting steps

If something is wrong, try these steps in order:

1. Check if the power is on (is the power light on?).
2. Are the cables plugged in correctly? (screen, keyboard, power)
3. Restart the computer — this fixes many problems.
4. If the internet is slow, move closer to the Wi-Fi router or ask the teacher.
5. If it still fails, tell your teacher or a technician — do not open the machine.

Quick classroom activity

1. Look at a computer in the lab and write the names of 5 parts you can see.
2. For each part, write whether it is input, output or storage.
3. Find one example of how a computer helps people in your village or town.

Mini diagram (label the parts)

        +--------------------------------------+
        |  Monitor (screen)                    |
        |  [Shows text and pictures]           |
        +--------------------------------------+
              |            |           |
            Keyboard      Mouse       CPU (box)
            (Input)       (Input)     (Process & Storage)
      

Short glossary

Input

Information given to the computer (typing, clicking).

Output

What the computer gives back (screen, print, sound).

Storage

Where files are saved (memory, hard drive).

App (Application)

A program used to do tasks (word processor, browser).

Remember

Computers help us learn and work better. Treat them carefully, keep your passwords safe and always ask for help when something is wrong.