Hi, young learners! Welcome back to Basic Science & Technology, Computer Studies. In our previous lesson, we learned about Input Devices – Mouse. Today, we’re going to learn about INPUT DEVICES – Description of keys on the keyboard and their functions.
Objectives
By the end of this lesson, you should be able to:
- Mention different uses of a keyboard.
- Demonstrate how to type and scroll up and down on the keyboard.
- Mention 6 types of keys on the keyboard and their functions.
- Identify keys on the keyboard.
INPUT DEVICES – Description of keys on the keyboard and their functions
What is a Keyboard?
The keyboard is a crucial input device used to communicate with a computer. It allows us to type text, numbers, and symbols, which the computer then interprets and displays on the screen.
Uses of the Keyboard
The keyboard is a versatile tool with many uses, some of which include:
- Typing: We use the keyboard to write emails, create documents, compose messages, and much more.
- Navigating: The arrow keys and other special keys help us move around within documents, web pages, and applications.
- Controlling the Computer: The keyboard allows us to execute commands, open programs, and interact with various software.
- Playing Games: Many games use the keyboard for controlling characters, actions, and gameplay.
- Searching for Information: We use the keyboard to enter search terms on the internet and find information.
Types and Functions of Keys on the Keyboard
The keyboard is made up of different types of keys, each with a specific function. Let’s explore some of the major types:
Alphabetic Keys
These keys contain the letters of the alphabet (A to Z). We use them to type words and sentences.
Numeric Keys
These keys contain the numbers 0 to 9. We use them to enter numbers in documents, calculations, and other applications.
System Keys
These keys have special functions that control the computer’s behavior. Some common system keys include:
- Enter Key: Used to confirm actions, start new lines, and execute commands.
- Shift Key: Used to type uppercase letters, access special characters, and perform other functions.
- Ctrl Key: Used in combination with other keys to perform shortcuts and special commands.
- Alt Key: Similar to the Ctrl key, used for shortcuts and special functions.
Alphanumeric Keys
These keys combine both letters and numbers. They are useful for typing text that includes both letters and numbers.
Arrow/Navigation Keys
These keys have arrows pointing up, down, left, and right. They help us move the cursor around the screen, navigate through documents, and scroll through web pages.
Function Keys
These keys are labeled F1, F2, F3, and so on. They have specific functions that vary depending on the program or application being used. For example, F1 often provides help or instructions.
Special Keys
The keyboard also has several special keys with unique functions:
- Escape (Esc) Key: Used to cancel actions, close windows, or exit programs.
- Delete Key: Used to erase text or items to the right of the cursor.
- Backspace Key: Used to erase text or items to the left of the cursor.
- Tab Key: Used to move the cursor to the next tab stop, often used for indentation in text documents.
- Caps Lock Key: Used to type all letters in uppercase until it is turned off.
- Spacebar: Used to insert spaces between words.
Evaluation Questions
Now that you’ve learned about the keyboard, let’s see if you can answer these questions:
- What are some uses of the keyboard? 2. Name 2 Special Keys and their functions.
- Can you name any two types of keys on the keyboard and their functions?
- What is the difference between the Delete key and the Backspace key? 5. What is the function of the Enter key?
Conclusion
We’ve learned about the importance of the keyboard as an input device and explored the different types of keys and their functions. Remember, practice makes perfect! The more you use the keyboard, the more familiar you’ll become with its keys and their functions. Keep exploring and learning about the world of computers! See you in the next lesson!
