ITI COPA Short Notes: OS, Hardware & DOS/Linux Commands

Welcome to the official MockSensei short notes for NCVT ITI COPA Module 1: Operating System, Hardware & Software.

Stop wasting time reading massive textbooks. The NCVT Computer Based Test (CBT) asks highly specific questions about DOS commands, Linux file systems, hardware identification, and workshop safety. We have extracted exactly what you need to know according to the latest NSQF Level 3.5 syllabus.

Memorize these points, study the tables, and then immediately test your preparation using the link at the bottom of this page.

1. Safe Working Practices & Fire Extinguishers

Before touching a computer, you must understand workshop safety. NCVT always asks 1-2 questions on identifying the correct fire extinguisher for electrical fires.

• Class A Fire (Wood, Paper, Cloth): Extinguished using Water or Sand.
• Class B Fire (Oil, Petrol, Paint): Extinguished using Foam or CO2 extinguishers.
• Class C Fire (Electrical equipment, Computers): Extinguished using CO2 (Carbon Dioxide) or Dry Powder.
• Class D Fire (Metals): Extinguished using Dry Powder.

2. Computer Hardware & Booting Process

A computer system consists of Hardware (physical parts you can touch) and Software (programs that run the hardware).

The Booting Process

Booting is the process of starting the computer and loading the Operating System (OS) into RAM.

• Cold Booting: Starting the computer from a completely powered-off state by pressing the power button.
• Warm Booting: Restarting a computer that is already on, without cutting the power (e.g., using Ctrl + Alt + Del or the restart button).
• BIOS (Basic Input/Output System): A firmware chip on the motherboard. When you turn on the PC, the BIOS runs the POST (Power-On Self Test) to check if the RAM, keyboard, and hard drive are working before loading Windows.

Input vs. Output Devices

You will face direct MCQs asking you to categorize devices. Memorize this table:

3. Windows Operating System & Shortcuts

Windows is a GUI (Graphical User Interface) operating system, meaning you interact with it using a mouse, icons, and menus.

• Control Panel: The central hub used to change system settings, manage user accounts, update drivers, and uninstall software.
• File Extensions: The computer uses extensions to know what software opens a file.
  • .docx = MS Word Document
  • .xlsx = MS Excel Spreadsheet
  • .exe = Executable Application
  • .zip = Compressed File folder

Essential Windows Keyboard Shortcuts

NCVT tests your practical speed by asking about shortcuts.

4. DOS (Disk Operating System) Commands - CRITICAL

DOS is a CLI (Command Line Interface). There is no mouse; you must type commands perfectly. This is the most important section for Module 1 MCQs. You will be asked to identify if a command is Internal or External.

Internal vs. External Commands

1. Internal Commands: These are built directly into the COMMAND.COM file. They are loaded into the RAM automatically when DOS boots. They execute very fast and do not need separate files.
2. External Commands: These are separate utility programs (stored as .exe or .com files on the hard disk). They are only loaded into RAM when you type them.

Important Internal DOS Commands

• DIR: Displays a list of files and subdirectories. (Exam Note: DIR /P shows files page by page, DIR /W shows files in wide format).
• MD or MKDIR: Makes/Creates a new directory (folder).
• CD or CHDIR: Changes the current directory. (Exam Note: CD .. moves you one step back/up in the folder tree).
• RD or RMDIR: Removes an empty directory.
• COPY CON: Creates a new text file directly from the command line.
• DEL or ERASE: Deletes one or more files.
• CLS: Clears the terminal screen.
• DATE / TIME: Displays or sets the system date and time.

Important External DOS Commands

• FORMAT: Prepares a disk to store data by creating a new file system. It deletes everything on the disk.
• CHKDSK: Scans the disk for logical errors and bad sectors, displaying a status report.
• XCOPY: More powerful than COPY. It copies files and entire directory trees (folders inside folders).
• ATTRIB: Displays or changes file attributes. (Exam Note: ATTRIB +H makes a file hidden, ATTRIB +R makes a file read-only).
• TREE: Displays the folder structure of a drive visually like a branching tree.

5. Linux (Ubuntu) Operating System

Unlike Windows, Linux is an Open-Source operating system. This means its source code is freely available to the public to view, modify, and distribute. Ubuntu is one of the most popular versions (distributions) of Linux.

Core Architecture of Linux

• Kernel: The absolute core of the operating system. It interacts directly with the hardware, managing memory, CPU, and devices.
• Shell: The user interface (command line) that takes your typed commands, interprets them, and sends them to the Kernel to execute.
• Root User: The superuser or administrator in Linux. The root user has 100% control over the system and can modify any file.

Basic Linux Commands (Do NOT confuse with DOS)

NCVT loves to mix DOS and Linux commands in the options to confuse you. Remember these Linux equivalents:

6. Software Installation, Formatting & Troubleshooting

Before you can install an operating system like Windows or Ubuntu, the hard disk must be prepared.

• Partitioning: The act of dividing a single physical Hard Disk Drive (HDD) or SSD into multiple logical drives. For example, dividing a 1TB drive into a C: drive for Windows and a D: drive for your personal files.
• Formatting: After partitioning, you must format the drive. Formatting creates a File System (like NTFS for Windows, or ext4 for Linux) so the OS knows exactly how to store and read data.
• Device Drivers: A device driver is a small piece of software that acts as a translator between the Operating System and a piece of hardware. If you plug in a new printer and it doesn't work, you likely need to install the correct printer driver.

Time to Prove Your Knowledge

Reading the notes is only step one. The NCVT exam tests your speed and accuracy. Do you actually remember which fire extinguisher to use? Do you know the difference between ls and DIR?

Stop reading and start practicing. Click the button below to take the official MockSensei chapter-wise test for Module 1.

Keep revisiting these notes. Hardware and OS basics form the foundation of the entire COPA trade. Once you score above 80% on the mock test, move on to Module 2: Word Processing.