📚 eSkills Book 3
Chapter 2: My Files
Complete Study Notes & Practical Guide
📄 1. What is a File?
A File is the basic unit of storage on a computer. It is a collection of information stored under a specific name. Just as a physical document contains written information, a computer file contains digital information.
- Content: Can contain text, images, sound, video, or program instructions.
- Identity: Every file must have a unique name within its folder.
- Storage: Files are stored on storage devices like Hard Drives, USBs, or Cloud Storage.
- Creation: Files are created by software applications (e.g., MS Word creates .docx files).
🏷️ 2. File Name and Extension
A complete file name consists of two parts separated by a dot (.).
The File Name
This is the part you choose to identify the content. It should be descriptive.
Example: History_Essay_Draft
The Extension
This is a 3 or 4 letter code at the end that tells the computer what type of file it is and which program to use to open it.
Example: .docx (Word Document)
Full Example: History_Essay_Draft.docx
Common File Extensions Table:
| Extension | File Type | Default Program |
|---|---|---|
| .docx / .doc | Word Document | Microsoft Word |
| .xlsx / .xls | Spreadsheet | Microsoft Excel |
| .pptx / .ppt | Presentation | Microsoft PowerPoint |
| Portable Document | Adobe Reader / Browser | |
| .jpg / .png | Image / Picture | Photos / Paint |
| .mp3 / .wav | Audio / Music | Media Player |
| .mp4 / .avi | Video | Media Player / VLC |
| .zip / .rar | Compressed Folder | WinZip / Windows Explorer |
Note: In Windows, extensions are sometimes hidden by default. You can view them by going to View > Show > File name extensions.
📁 3. Folders and Sub-Folders
A Folder (also called a Directory) is a virtual container used to organize files. Think of it like a physical file folder in a cabinet.
Folder Name Rules:
- Names should be descriptive (e.g., "Math Homework" instead of "Stuff").
- Cannot use these characters:
\ / : * ? " < > | - Maximum length is usually 255 characters.
- Spaces are allowed, but underscores (_) are often safer for compatibility.
Folders vs. Sub-Folders:
A Sub-folder is simply a folder created inside another folder. This creates a hierarchy or "tree structure".
└── 📁 Users
└── 📁 Student (Main Folder)
├── 📁 School (Sub-folder)
│ └── 📁 Grade 8 (Sub-sub-folder)
├── 📁 Games (Sub-folder)
└── 📁 Photos (Sub-folder)
🗂️ 4. Organizing My Folders
Good organization saves time and prevents data loss. Follow these steps:
- Plan: Decide on categories before creating folders (e.g., by Subject, by Year, by Project).
- Create Main Folders: Start with broad categories (e.g., "School", "Personal").
- Create Sub-Folders: Break down main folders into specific topics (e.g., "School > Math").
- Consistency: Use the same naming style throughout (e.g., always capitalize the first letter).
- Cleanup: Delete empty folders or move old files to an "Archive" folder regularly.
📥 5. How to Put Files in Folders
There are three main methods to organize files into folders:
When creating a new file:
1. Click File > Save As.
2. Navigate to the target folder.
3. Click Save.
For existing files:
1. Open the folder containing the file.
2. Click and hold the file.
3. Drag it into the destination folder.
4. Release the mouse button.
For moving files precisely:
1. Right-click file > Cut (or Ctrl+X).
2. Open destination folder.
3. Right-click empty space > Paste (or Ctrl+V).
💾 6. File Size
File size determines how much storage space a file occupies. It is measured in bytes.
| Unit | Abbreviation | Value | Example |
| Byte | B | 1 Character | The letter "A" |
| Kilobyte | KB | 1,024 Bytes | Simple Text Document |
| Megabyte | MB | 1,024 KB | High Quality Photo / Song |
| Gigabyte | GB | 1,024 MB | HD Movie / Large Game |
To check file size: Right-click the file > Select Properties > Look at "Size".
🔓 7. Open a File
Opening a file loads its content into the appropriate application so you can view or edit it.
- Double-Click: The most common method. Left-click the file icon twice quickly.
- Right-Click Menu: Right-click the file > Select Open.
- Open With: If the file doesn't open correctly, Right-click > Open With > Choose the correct program manually.
- From Inside Program: Open the application (e.g., Word) > Click File > Open > Browse to find the file.
🗑️ 8. Delete a File
Deleting removes the file from its current location.
- Select the file (click once).
- Press the Delete key on your keyboard OR Right-click > Delete.
- The file is moved to the Recycle Bin. It is not permanently gone yet.
- To Restore: Open Recycle Bin > Right-click file > Restore.
- To Permanently Delete: Right-click the Recycle Bin icon on desktop > Empty Recycle Bin.
⚠️ Warning:
Files deleted from USB drives or Network drives do not go to the Recycle Bin. They are deleted permanently immediately.
📋 9. Copy File
Copying creates a duplicate of the file. The original remains in the old location, and a new copy appears in the new location.
1. Select File > Press Ctrl + C (Copy).
2. Open Destination Folder > Press Ctrl + V (Paste).
1. Right-click File > Select Copy.
2. Right-click inside Destination Folder > Select Paste.
✏️ 10. Rename File
Changing the name of a file without changing its content.
- Click the file once to select it.
- Press the F2 key on your keyboard OR Right-click > Select Rename.
- The name will become highlighted. Type the new name.
- IMPORTANT: Do not change the extension (the part after the dot). Only change the name before the dot.
- Press Enter to save the new name.
🚚 11. Transfer File
Moving a file from one computer or location to another.
| Method | How To | Best For |
|---|---|---|
| USB Drive | Copy file > Paste onto USB icon > Eject USB > Plug into new PC > Paste. | Large files, No Internet |
| Compose Email > Click Attachment (Paperclip) > Select File > Send. | Small files (< 25MB) | |
| Cloud Storage | Upload to Google Drive/OneDrive > Share Link with recipient. | Collaboration, Large files |
| Bluetooth | Right-click file > Send to > Bluetooth device. | Nearby phones/devices |
🖥️ 12. What Does MS Windows Look Like?
When managing files, you primarily use the File Explorer window. Here are its main parts:
1. The Ribbon
Located at the top. Contains tabs like Home, Share, and View. It holds buttons for commands like Copy, Paste, Delete, and New Folder.
2. Address Bar
Shows the current path (location) of the folder you are in. You can click here to type a path or navigate up one level.
3. Navigation Pane
Located on the left side. Shows a tree view of drives (C:, D:), Quick Access, Desktop, Downloads, and Documents.
4. File List Area
The large white space in the center. Displays the icons and names of the files and folders inside the current location.
🔍 13. Search and Find
Windows provides powerful tools to locate lost files.
Method A: Search Box in File Explorer
Located at the top-right corner of the File Explorer window.
- Type part of the filename (e.g., "Report").
- Windows searches the current folder and all sub-folders.
- Search Filters: You can type specific commands like:
kind:picture(finds only images)
date:today(finds files modified today)
size:large(finds large files)
Method B: Start Menu Search
Click the Start Button (Windows Logo) and immediately start typing.
- Windows searches programs, settings, and files across the whole computer.
- This is the fastest way to find programs or recent documents.
🚀 14. Start a Program
To run software (like Word, Chrome, or Games), you need to launch the program.
- Via Start Menu: Click Start > Scroll through the list > Click the Program Name.
- Via Search: Click Start > Type "Word" > Press Enter.
- Via Desktop Shortcut: If an icon exists on the Desktop, double-click it.
- Via Taskbar: If the program is pinned to the bottom bar, click the icon once.
- Via File Association: Double-clicking a file (e.g., .docx) will automatically start the program needed to open it (e.g., Word).
✍️ Practical Questions & Answers
Test your knowledge with these scenario-based questions based on Chapter 2.
Q1: What is the difference between Copying a file and Moving a file?
Answer:
Copying creates a duplicate. The original file stays in the old location, and a new copy appears in the new location (2 files exist).
Moving (Cut/Paste) transfers the file. The file is removed from the old location and appears only in the new location (1 file exists).
Q2: You try to open a file named "image.docx" but it shows strange symbols instead of a picture. What went wrong?
Answer:
The file extension is incorrect. It is likely an image file (like .jpg) but was renamed to .docx. Windows is trying to open it in Word instead of an Image Viewer. You should rename the extension back to .jpg or .png.
Q3: Why is it important to create Sub-folders instead of keeping all files in one main folder?
Answer:
1. Organization: It groups related files together (e.g., all Math files in one place).
2. Speed: It makes searching and finding files much faster.
3. Clarity: It prevents the main folder from becoming cluttered and confusing.
Q4: You need to send a 500MB video file to a friend. Email only allows 25MB attachments. What should you do?
Answer:
You cannot send this via email attachment. You should use a Cloud Storage service (like Google Drive or OneDrive). Upload the file there, copy the shareable link, and send the link to your friend via email or chat.
Q5: Which keyboard shortcut would you use to quickly Rename a selected file?
Answer:
Press the F2 key.
Q6: Describe the steps to find all Picture files created yesterday.
Answer:
1. Open File Explorer.
2. Click in the Search Box (top right).
3. Type: kind:picture date:yesterday
4. Press Enter. Windows will filter and show only images modified yesterday.
✅ Study Tip: Practice these steps on your own computer. Muscle memory is key to mastering file management!
Based on eSkills Book 3 Curriculum Standards | Chapter 2: My Files
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