Unit 3: MS Windows

I. Windows Environment — Graphical Operating System

Microsoft Windows is a family of operating systems that provides a graphical user interface for controlling the computer, running applications, storing data, and managing hardware. Its basic working environment is organized around windows, icons, menus, pointers, files, folders, drives, and system settings.

• Defining properties:
  • Graphical user interface (GUI): Commands are commonly performed through visual elements such as icons, buttons, menus, dialog boxes, and windows.
  • Pointer-based operation: A mouse or touchpad is used to point, click, double-click, right-click, drag, and scroll.
  • Multitasking: Several programs can remain open at the same time; for example, a user can switch between Microsoft Word and a web browser through the taskbar.
  • Window-based organization: Each application usually opens in a rectangular area with controls such as Minimize, Maximize/Restore, and Close.
  • Hierarchical storage: Data is organized as drives containing folders, subfolders, and files—for example, C:\Users\Ravi\Documents\Report.docx.
  • Common interface conventions:
  • Single-click: Selects an item or activates a button.
  • Double-click: Usually opens a file, folder, or application.
  • Right-click: Displays a context menu of relevant commands.
  • Drag-and-drop: Moves, copies, or rearranges an item depending on the destination and modifier keys used.
  • Account-based use: Each user account can have separate personal folders, desktop items, settings, and permissions.
  • Version terminology: Modern Windows calls the file-management program File Explorer and the computer overview This PC; older versions used Windows Explorer and My Computer.

II. Desktop — Main Windows Workspace

The desktop is the principal screen displayed after a user signs in to Windows. It provides access to applications, files, folders, notifications, and system commands.

A. Desktop

The desktop acts as a visual workspace from which users open resources and monitor running programs.

• Desktop background: The wallpaper is the image, color, or slideshow displayed behind desktop items; it can be changed through Settings → Personalization → Background.
• Icons: Small graphical symbols represent programs, files, folders, or system locations.
  • Application icon: Opens a program, such as Microsoft Edge.
  • File icon: Represents a stored document and often indicates its type, such as a Word document.
  • Folder icon: Opens a container holding files or subfolders.
  • Shortcut icon: Points to another item and commonly carries a small arrow; deleting a shortcut does not normally delete the original item.
• Taskbar: The bar usually located at the bottom of the screen contains the Start button, pinned applications, open application buttons, and notification area.
• Start menu: Opened through the Windows logo button, it provides access to applications, search, settings, account options, and power commands.
• Notification area: Displays status icons such as network connection, volume, battery, language, clock, and security notifications.
• Window controls:
  • Minimize: Hides a window on the taskbar without closing it.
  • Maximize: Expands the window to fill the screen.
  • Restore Down: Returns a maximized window to its earlier size.
  • Close: Ends the window or application; unsaved work may trigger a warning.
• Desktop organization: Right-clicking an empty area provides commands such as View, Sort by, Refresh, and New.
• Useful shortcuts:
  • Windows + D: Shows or hides the desktop.
  • Alt + Tab: Switches among open applications.
  • Windows + L: Locks the computer.
  • Alt + F4: Closes the active window.

III. My Computer — Access to Drives and Storage

My Computer is the older name for the Windows location now called This PC. It presents the computer’s drives, storage devices, and major user folders in one place.

A. My Computer

My Computer provides a central view of storage resources and enables users to open drives, examine capacity, and access connected devices.

• Opening the location: It can be opened from a desktop icon, the Start menu, or File Explorer’s navigation pane; Windows + E opens File Explorer.
• Drives: Windows assigns a letter followed by a colon to most storage volumes.
  • Local disk: The main internal drive is commonly identified as C:.
  • Additional partitions: Other storage volumes may appear as D: or E:.
  • Removable storage: USB flash drives and external disks receive available drive letters when connected.
  • Optical drive: A CD or DVD drive may also appear with a drive letter.
• Default folders: This PC often provides quick access to folders such as Desktop, Documents, Downloads, Music, Pictures, and Videos.
• Storage information: Each drive can show total capacity and available free space; a nearly full drive may reduce space for files, updates, and temporary data.
• Drive properties: Right-clicking a drive and selecting Properties displays its file system, used space, free space, and total capacity.
• File system: A file system determines how data is stored and retrieved; internal Windows drives commonly use NTFS, while removable devices may use FAT32 or exFAT.
• Connected devices: Phones, cameras, network locations, and mapped network drives may appear when available.
• Safe device removal: A removable drive should be ejected through the taskbar’s device icon or the drive’s Eject command before physical removal, especially while data is being written.
• Access permissions: Some drives and folders require administrator authorization because Windows protects system files and other users’ data.

IV. Windows Explorer — File and Folder Management

Windows Explorer, called File Explorer in current Windows versions, is the main program for viewing, organizing, copying, moving, renaming, and deleting stored data.

A. Managing files and folders using Windows Explorer

File Explorer manages data through a hierarchical arrangement of drives, folders, subfolders, and files.

• File Explorer interface:
  • Navigation pane: Shows locations such as Home or Quick Access, This PC, drives, network resources, and OneDrive.
  • Address bar: Displays the current path, such as C:\Users\Asha\Documents.
  • Search box: Searches within the currently selected location.
  • File list: Displays the contents of the open folder.
  • Command bar or ribbon: Provides commands for creating, copying, sorting, sharing, and viewing items.
• Files and folders:
  • File: A named collection of data, such as Budget.xlsx or Photo.jpg.
  • Folder: A container used to group files and other folders.
  • Filename extension: The letters after the final period identify the file type; examples include .txt, .docx, .pdf, and .png.
  • Path: The complete location of an item; in D:\College\Notes\Unit3.docx, D: is the drive and Unit3.docx is the file.
• Creating a folder: Use New → Folder, or press Ctrl + Shift + N, type a meaningful name, and press Enter.
• Selecting items:
  • One item: Click it once.
  • Adjacent items: Click the first item, hold Shift, and click the last.
  • Non-adjacent items: Hold Ctrl while clicking individual items.
  • All items: Press Ctrl + A.
• Copying and moving:
  1. Copying: Creates a duplicate while retaining the original; use Ctrl + C followed by Ctrl + V.
  2. Moving: Transfers the original to a different location; use Ctrl + X followed by Ctrl + V.
• Drag-and-drop behavior: Dragging within the same drive usually moves an item, while dragging to a different drive usually copies it; keyboard commands make the intended action clearer.
• Renaming: Select an item, press F2, type the new name, and press Enter; changing an extension may make the file unusable by its associated program.
• Deleting:
  • Ordinary deletion: Delete generally sends an item from an internal drive to the Recycle Bin.
  • Permanent deletion: Shift + Delete bypasses the Recycle Bin and should be used cautiously.
  • Restoration: Open the Recycle Bin, select the item, and choose Restore to return it to its previous location.
• Views and sorting: Items can appear as icons, tiles, lists, or details and can be sorted by Name, Date modified, Type, or Size.
• Properties: Alt + Enter or Right-click → Properties displays an item’s type, location, size, dates, and attributes.
• Good management practice: Use descriptive names such as Sales_Report_March_2025.xlsx, maintain subject-based folders, avoid storing everything on the desktop, and keep backups on another drive or approved cloud service.

V. Control Panel — System Configuration

Control Panel is a Windows utility that provides grouped tools for viewing and changing hardware, software, account, network, security, and accessibility settings.

A. Control Panel

Control Panel allows users to configure system behavior, though many newer options are also available in the Windows Settings application.

• Opening Control Panel: Search for Control Panel from the Start menu, then select Category, Large icons, or Small icons view.
• System and Security: Contains tools related to Windows security, firewall, power options, backup, storage, and administrative functions.
• Network and Internet: Provides access to network status, adapter settings, connection properties, and sharing options.
• Hardware and Sound: Manages printers, devices, sound, mouse options, and power settings.
• Programs: Programs and Features lists installed desktop applications and supports uninstalling or changing them.
• User Accounts: Manages account types, credentials, and certain access settings; administrator permission may be required.
• Appearance and Personalization: Includes display, taskbar, font, and File Explorer options, depending on the Windows version.
• Clock and Region: Controls date, time, time zone, language, and regional formats such as date or currency display.
• Ease of Access: Offers accessibility tools such as Narrator, Magnifier, high contrast, and keyboard assistance.
• Administrative caution: Changing firewall rules, device settings, power plans, or system properties can affect security and performance; settings should be altered only for a clear purpose.

VI. Windows Search — Locating Stored Information

Windows Search locates files and folders by comparing a query with filenames, properties, content, and indexed information.

A. Searching files and folders

Searching files and folders is faster than manually opening many locations when the item’s name, type, date, or another property is known.

• Search locations:
  • Start search: Finds applications, settings, and indexed files across common locations.
  • File Explorer search: Searches the folder currently open and, normally, all its subfolders.
  • This PC search: Searches multiple drives and locations but may take longer.
• Basic procedure: Open File Explorer, select the likely folder or drive, click the search box, type a term such as budget, and review the results.
• Partial-name search: A complete filename is unnecessary; searching report can locate Annual_Report.docx and Report_Final.pdf.
• Wildcard characters:
  • Asterisk (*): Represents any number of characters; *.pdf searches for PDF files.
  • Question mark (?): Represents one character; note?.txt can match note1.txt.
• Search filters: Depending on the Windows version, results may be narrowed by kind, type, date modified, or size; for example, selecting “Documents” excludes pictures and applications.
• Result management: Search results can be opened, copied, moved, renamed, or inspected through Properties, just like items in an ordinary folder.
• Indexing: Windows builds an index of selected locations and file properties so that searches return results quickly.
• Unindexed locations: External drives, network folders, protected areas, or newly created files may search more slowly or may not appear immediately.
• Content search: Some supported document types can be found by words inside the file, but this depends on indexing settings and available file filters.
• Effective method: Begin in the narrowest likely folder, use a distinctive part of the name, apply one filter at a time, and sort the results by Date modified or Type when many matches appear.