Test: Keyboard & its Keys - 1 - Class 1 MCQ

Pen and pencil are used to write on a paper, and printer is used to take print-outs. Only keyboard is used to type.

The keys fromto are alphabet keys.

Introduction:
When typing on a keyboard, the characters and commands are not immediately visible. Instead, they are displayed on a device called a monitor.
Explanation:
The keyboard is an input device that allows users to enter characters and commands into a computer system. However, the keyboard itself does not have a display capability. The characters and commands entered on the keyboard are sent to the computer system, which then processes and displays them on a monitor.
Answer:
The correct answer is D:

Monitor

Reasoning:
The monitor is the device that visually displays the characters and commands entered on the keyboard. It is the output device that allows users to see the results of their input. Here's why the other options are incorrect:
- A:

Mouse

: The mouse is an input device used for controlling the cursor on the screen, but it does not display the characters entered on the keyboard.
- B:

CPU

: The CPU (Central Processing Unit) is the main component of a computer system that processes instructions and data. It does not have a display capability.
- C:

Speaker

: The speaker is an output device that produces sound, but it does not display the characters entered on the keyboard.
In conclusion, the characters and commands entered on a keyboard can be seen on the monitor, which is the device responsible for displaying the output of the computer system.

To type capital letters, you need to turn on the Caps Lock key on the keyboard. Here is a detailed explanation:
Caps Lock Key:
The Caps Lock key is a key on the computer keyboard that allows you to type in uppercase letters without holding down the Shift key. When the Caps Lock key is enabled, all letters will be typed in uppercase until you turn it off.
To turn on the Caps Lock key, simply press the Caps Lock key once. You will notice that a light indicator on the keyboard or on the screen will show that Caps Lock is enabled. Pressing the Caps Lock key again will turn it off.
Other Keyboard Keys:
- Delete Key (Option A): The Delete key is used to delete characters or objects from the screen, but it does not affect the capitalization of letters.
- Enter Key (Option B): The Enter key is used to create a new line or execute a command, but it does not affect the capitalization of letters.
- Caps Lock Key (Option C): The Caps Lock key is the correct key to use when you want to type capital letters without holding down the Shift key.
- Arrow Key (Option D): The Arrow keys are used to navigate through documents or move the cursor, but they do not affect the capitalization of letters.
Therefore, the correct answer is option C: Caps Lock.

Explanation:
The given statement is true as the key referred to as the "____ Key" in the question is commonly known as the return key. The return key is located on a computer keyboard and is used to execute various functions depending on the context.
Here is a detailed explanation of the options provided and why the correct answer is B - Enter:
- Option A: Space bar
The space bar is a large key on the keyboard that is used to create a space between words or characters. It is not referred to as the return key.
- Option B: Enter
The Enter key, also known as the return key, is used to execute a command, submit a form, or create a new line in a document. It is commonly used to move to the next line or initiate an action.
- Option C: Delete
The delete key is used to remove characters or items that are currently selected. It is not referred to as the return key.
- Option D: Backspace
The backspace key is used to delete characters to the left of the cursor. It is not referred to as the return key.
In conclusion, the key referred to as the "____ Key" in the question is the return key, which is commonly known as the Enter key on a computer keyboard.

Alphabet keys:
- The alphabet keys on a keyboard consist of the letters of the alphabet from A to Z.
- These keys are used to input alphabetical characters, such as the letters in your name.
- You would use these keys to type the letters that make up your name.
Number keys:
- The number keys on a keyboard consist of the numbers from 0 to 9.
- While you may use the number keys to input your age, they are not used to type the alphabetical characters in your name.
Arrow keys:
- The arrow keys on a keyboard are used for navigation purposes, such as moving the cursor or scrolling through a document.
- They are not used to input characters for typing your name or age.
Control keys:
These keys are used alone or in combination with other keys to perform certain actions. The most frequently used control keys are Ctrl, Alt, the Windows logo key , and Esc.
Function keys: The function keys are used to perform specific tasks. They are labeled as F1, F2, F3, and so on, up to F12. The functionality of these keys differs from program to program.

Correct option is A.

The key that erases anything typed on the right of the cursor is the Delete key.
Here is a detailed explanation:
Key: Delete
Function: Erases anything typed on the right of the cursor.
Explanation:
- When you type something on a computer or any other device, the cursor indicates the position where the text will be inserted.
- The Delete key is used to erase characters, words, or other elements that are located to the right of the cursor.
- It is different from the Backspace key, which erases characters located to the left of the cursor.
- The Delete key is typically found on the right side of a keyboard, above the arrow keys.
- It is commonly represented by a symbol that shows an arrow pointing to the right with a crossbar through it.
- Pressing the Delete key will remove the selected characters or objects to the right of the cursor, effectively erasing them.
Example:
- If you have typed "Hello world!" and the cursor is located after the exclamation mark, pressing the Delete key will erase the exclamation mark.
- The text will then become "Hello world" without the exclamation mark.
Note: This explanation assumes a standard QWERTY keyboard layout. Different keyboard layouts or devices may have variations in the location or labeling of the Delete key, but its function remains the same.

Keys from 0 to 9 are called Number keys.
Explanation:
The keys from 0 to 9 on a keyboard are commonly referred to as number keys. These keys are used to input numerical values into a computer or other electronic devices.
Key Points:
- The number keys are typically arranged in a row at the top of the keyboard, above the alphabetic keys.
- Each key represents a different number, from 0 to 9.
- These keys are used extensively in various applications, such as entering phone numbers, mathematical calculations, or inputting numerical data.
- The number keys can be combined with other keys, such as the shift key, to input special characters or symbols.
- On some keyboards, the number keys may also have additional functions, such as controlling volume or brightness levels.
- The number keys are an essential part of the keyboard layout and are used frequently in everyday computing tasks.
In conclusion, the keys from 0 to 9 on a keyboard are known as number keys and are used for inputting numerical values.

The key that will replace X on the keyboard is the Backspace key.
To explain this in detail, let's break down the information into bullet points:
- The given image of the keyboard does not show the specific location of the key to be replaced, but it mentions that X will be replaced.
- The Backspace key is commonly used to delete characters to the left of the cursor.
- It is usually located in the upper right corner of the keyboard, above the Enter key.
- The Backspace key is represented by an arrow pointing to the left with a vertical line underneath it.
- When pressed, the Backspace key erases the character to the left of the cursor in most text editing applications or text fields.
Based on the information provided, it is clear that the key which will replace X on the keyboard is the Backspace key.

Delete, number and alphabet words are hidden in the given grid as shown here.