ITI Computer Hardware & Network Maintenance Syllabus: Course Structure, Detailed Syllabus

• Familiarization with the Institute and Safety • CHNM course duration, scope, methodology, and structure of the training program.
• Safety in moving and shifting heavy and delicate equipment.
• First aid concept.
• About artificial respiration.
• Electrical Safety

• Basic Electrical concepts
• Concept of current and voltage.
• AC, DC Supply indicating lamps.
• Different types of Fuses and their applications.
• Different types of connectors and switches are used in electrical and electronic applications.
• Measuring circuit voltage and current using voltmeters and ammeters. AC and DC meters.
• Measuring instruments, MC, MI type, Ammeter, Voltmeter, and Multimeter for measuring voltage and current.
• Construction, characteristics/ features, and specification.
• Digital Multimeter
• Meaning of Circuit and basic electrical circuits.
• Meaning of resistance, continuity, and continuity testers.
• Multimeter for checking continuity.
• Concept of Power and measurement using V&I meter and Power meter.

• Introduction to Resistors
• Classification, characteristics, and application of different types of resistors.
• Carbon film, metal film, wire wound, cermets, and surface mounted.
• Colour coding of resistors. Calculating, and ensuring resistance value and its tolerance value.
• The wattage of resistors, specific resistance, and their importance.
• Resistors in series and parallel.
• Soft soldering and precautions to be taken for making a good solder joint.
• Types of solder and need of soldering paste.
• Ohm law and Kirchooff's Laws.
• Printed circuit boards and their application.
• De-soldering tools.
• Temperature-dependent resistors and their applications. (PTC and NTC).
• Voltage-dependent resistors (VDR).
• Photoelectric effect, Light Dependent resistors.
• Variable resistors, pots, presets, types and applications.
• Log and Linear resistors.

• Introduction to Inductor and Inductance
• Definition of inductance. Properties.
• Types of inductors and their application.
• Inductive reactance, measuring inductance, and inductive reactance.
• Meaning of lead, lag. Effect of inductor on power factor.
• Frequency dependence of inductive reactance.
• Self and Mutual inductance.
• Coefficient of coupling.
• Transformers.
• Turns ratio.
• Transformer winding. Winding machines.
• Transformer losses and efficiency.
• Uses, losses, efficiency type of cores, and uses for LF, HF, and VHF transformers.
• Transformers used in high-frequency applications
• Basics of EMI, EMC, and MCB.

• Introduction Capacitor, Capacitance, and Resonance circuits
• Working principle of capacitors. Electrostatic action, dielectric constant.
• Unit of capacitance and capacitive reactance.
• Types of Capacitors-electrolytic, ceramic, polyester, tantalum, mica, surface mounted. Colour coding, and tolerance.
• Measuring capacitance and capacitive reactance.
• The behavior of capacitance at different frequencies.
• Capacitors in series and parallel.
• Meaning of Resonance.
• Application of resonance.
• Series and parallel resonance circuits. Electronic Components
• Semiconductor, intrinsic and extrinsic semiconductors, Pand N type semiconductor.
• Development of P.N. junction barrier potential.
• Effect of temperature. Breakdown voltage.
• Different types of Diodes.
• Diode terminals. Diode specifications using data book.
• Forward and reverse characteristics of the diode. Testing diodes using a Multimeter.
• Half-wave and Full-wave rectifiers using diodes. Transformer requirements.
• Calculating output DC, ripple factor.
• Bridge rectifier. Calculating output DC, ripple factor.
• Filters for rectifiers. Calculating output DC, ripple factor

• Zener diode-Its characteristics and application for voltage regulation.
• Calculating the series resistor for the required current rating.
• Specifications of a regulated power supply and testing a power supply for its specifications.
• Introduction to Transistors and Amplifiers
• Working principle of PNP, Bipolar transistors.
• Types of transistors and applications.
• Leads of transistors and their identification.
• Forward and reverse bias of transistor or Junction.
• General values of junction resistances.
• Quick testing of a transistor-using Multimeter.
• Transistor configuration - CB, CE, CC, alpha, beta.
• Types of Biasing of transistor amplifiers, comparison, and applications. Thermal runaway.
• Steady and Dynamic characteristics. Testing - get frequency response, gain-bandwidth product, signal-to-noise ratio.
• Introduction to Power Supply
• Unregulated, regulated DC power supply specifications. Application of different types of power supply for specific application types.
• Series regulator using transistor.
• Short circuit protection. Overload protection.
• Fixed Voltage regulators using ICs. Variable voltage regulators using ICs.

• Mains voltage stabilizers.
• Inverters and converters.
• Uninterrupted power supply, types, and applications.
• Other Electrical & Electronics Accessories.
• Relays, types, and working principles.
• Basic LOGIC GATES and truth table.

• Introduction to Computers
• Introduction to computers, classification, generations, and applications.
• Basic blocks of a digital computer.
• Hand Tools Basics and Specifications.
• Types of cabinets, relation with motherboard form factor.
• Precautions are to be taken while opening and closing the PC cabinet.
• Main devices, components, Cards, and boards inside a PC (to the card or device level only).
• Types and specifications of the cables and connectors used for interconnecting the devices, boards, cards, and components inside a PC.
• Precautions are to be taken while removing and/or reconnecting cables inside a PC.

• Introduction to PC Hardware
• Types of I/O devices and ports on a standard PC for connecting I/O devices.
• Function of the keyboard, brief principle, types, interfaces, connectors, cable.
• The function of the Mouse, brief principle, types, interfaces, connectors, cable.
• Function of monitor, brief principle, resolution, size, types, interfaces, connectors, cable.
• Function of Speakers and Mic, brief principle, types, interfaces, connectors, cable.
• Function of serial port, parallel port, the brief principle of communication through these ports, types of devices that can be connected, interface standards, connectors, and cable.
• Function of Post Error Debug Card and its use.
• Function of SMPS Tester and its use.
• Function of PCI slot testing tool and its use.
• Precaution to be taken while connecting/removing connectors from PC ports.
• Method of ensuring firm connection.

• Assemble Hardware
• Specifications of processors (Intel Celeron, P4family, Xeon dual-core, quad-core, core2 duo, i3, i5, i7 and AMD).
• Memory devices, types, principle of storing.
• Data organization 4bit, 8-bit, word.
• Semiconductor memories, RAM, ROM, PROM, EMPROM, EEPROM, Static and dynamic.
• Examples of memory chips, pin diagrams, and pin functions.
• Concept of track, sector, cylinder.
• FD Drive components read-write head, head actuator, spindle motor, sensors, PCB.
• Precaution and care are to be taken while dismantling Drives.
• Drive bay, sizes, and types of drives that can be fitted. Precautions are to be taken while removing the drive bay from the PC.
• HDD, advantages, Principle of working of Hard disk drive, cylinder, and cluster, types, capacity, popular brands, standards, interface, jumper setting. Drive components- hard disk platens, recording media, air filter, read-write head, head actuator, spindle motor, circuit board, sensor, features like head parking, head positioning, reliability, performances, shock mounting capacity. HDD interface IDE, SCSI-I/2/3 comparative study. Latest trends in interface technology in PC and server HDD interface. Concept of SATA and SACH.
• Precautions are to be taken while fitting drives into bays and bays inside the PC cabinet.
• CMOS setting. (restrict to drive settings only).
• Meaning and need for Using Scan disk and defrag.
• Basic blocks of SMPS, description of sample circuit.
• Vendor/sources of PC hardware components.

• Introduction to Hard disk Partition and formatting and OS installation
• What's Inside a Hard Drive? How Hard Disks Work
• Inside: Hard Drive Motherboard
• Desktop Hard Drive Buyer's Guide
• What is RAID? Using Multiple Hard Drives for Performance and Reliability
• Partitioning a hard disk (primary and extended partitions).
• Bad Sectors in Hard disk
• Master Boot Record, in-place installation, Registry fixing, performance level check, Shortcut fixing, Fixing Startup process, log, the difference between MBR and GPT, etc.
• Types of software. System software-OS, Compiler. Application software like MS Office. High-level, low-level language, Computer application scientific industrial, and business.

• OS features, System Utilities
• Functions of an operating system. Disk operating system.
• Concept of GUI, Modes of starting on different occasions.
• Desktop, Icon, selecting, choosing, drag and drop.
• My computer (User folder in Desktop), network places.
• Recycle bin, taskbar, start menu, toolbar, and menus.
• Windows Explorer. Properties of files and folders.
• Executing application programs.

• Device Driver, OS Update, and Firewall Security
• Properties of connected devices.
• Applications under Windows accessories.
• Windows Help.
• Finding files, folders, computers.
• Control panel.
• Installed devices and properties
• Updating of OS, Different configurations of Computer system and its peripherals, Compatible with different hardware/software.
• Pre-installation Prerequisites, Install procedure, Rollback or Uninstall procedure, Tests of various device driver software.

• User Account in Windows
• Users and user accounts.
• Types of user accounts, user access levels, Privileges, types of privileges, various scopes, permissions, permission parameters, user and group permission, time-based permission, expiration of permission, etc.

• Antivirus and Application Software • Version of software, Service pack, Software Installation.
• Post-installation – Backup procedure & specifications, Restore procedure, Periodical View check.
• Awareness of legal aspects of using computers and software such as copyright, patent licensing, etc.
• Reliable sources of downloading software, antivirus, etc.

• Junk File
• Junk files, deleted files, undeleting files, and the configuration of the internet browser.
• Data backup and data recovery software
• Maintenance of Temp folder, internet history, cookies, bookmark, Concepts of SAN, NAS, and cloud storage.
• Introduction To Mail Client Software (Outlook)
• Add and use contacts, Calendar basics, Recall and replace sent messages, Send automatic replies when you’re out of the office, The ins and outs of BCC, Use Instant Search to find Calendar items, Use Instant Search to find contacts, Use Instant Search to find messages and text, Add holidays to your calendar, Create or delete a search folder, Import and export v Cards to Outlook contacts, Make the switch to Outlook 2013, Reach out with contact groups(distribution lists), Send or delete an email stuck in your outbox, Take calendars to the next level, Track email with read receipts, Password protect your mailbox, Use rules to manage your email.

• Laptop and its internal structure
• Introduction of laptop and comparison of various Laptops.
• Block diagram of laptop & description of all its sections.
• Study of parts of a laptop. Input system: Touchpad, Trackball, Track point, Docking station, Upgrade memory, hard disk, Replacing battery
• Configuring wireless internet in a laptop, Latest Tools & Gadgets for Desktop/Laptop Repairs.

• Word processing Software
• Introduction to word processing and comparison of features.
• Creating and saving document files using Word Processing Software.
• Formatting test and editing.
• Setting page and margins. Tabs and indents.
• Creating multicolumn documents.
• Inserting pictures in documents.
• Spreadsheet Software
• Introduction to spreadsheet.
• Creating Worksheets using Spreadsheet Software.
• Formatting cells.
• Using formula in cells.
• Graphs and tables.
• Advanced features. PowerPoint Presentation
• Introduction to Power Point and its advantages.
• Creating Slide Shows.
• Fine-tuning the presentation and good presentation technique.

• Linux operating system
• Basic Linux commands.
• Linux file system, The Shell, Users and fill permissions, vi editor, X window system, Filter Commands, Processes.
• Shell Scripting.
• Concept of UNIX.

• Printer and Plotters
• Types of printers, Dot Matrix printers, laser printers, Inkjet printers, and line printers.
• Block diagram and function of each unit head assembly, carriage, and paper feed mechanism.
• Front panel controls and interfaces.
• Pin details of interface port.
• Installation of a printer driver and self-test.
• Ribbon types used, refilling of ribbons.
• Printer cable testing defects, effect, and servicing.
• Printer head, types, cleaning, and replacing procedures.
• Printer power supply, circuit analysis, defects, servicing.
• Carriage motor assembly, paper feed assembly, sensors Procedure for dismantling and replacing mechanical parts.
• Printer control board, circuit, function, probable defects, servicing.
• Working principle of LASER printer.
• Refilling toner cartridges, equipment available for refilling and procedure.
• Printer drum, function, cleaning and replacing procedure.
• Mechanical parts and sensors on the printer, function, replacement procedure.
• Working principle of Inkjet / DeskJet printers.
• Working principle of Plotter and its common faults.

• Scanner and MFD
• Working principles of Scanner, Barcode Scanner, Network Scanner.
• Working principles and configuration of Multifunction Printer, Passbook printer, High-Speed Printer, Line Printer, and Network Printer.

• Network Components
• Introduction to Computer Networks – Advantages of Networking, Peer-to-Peer and Client/Server Network.
• Network Topologies – Star, Ring, Bus, Tree, Mesh, Hybrid.
• Type of Networks – Local Area Networks (LAN), Metropolitan Area Networks (MAN), Personal Area Network (PAN), Controller Area Network (CAN), Wide Area Networks (WAN). • Internet, Ethernet, WI-Fi, Bluetooth, Mobile Networking, Wire and Wireless Networking.
• Difference between Intranet and Internet. Extranet, 3G, 4G.

• Crimping & Punching
• Communication Media and Connectors – Unshielded twisted-pair (UTP), shielded twisted-pair (STP), Fibre Optic and coaxial cable: RJ-45, RJ-11, BNC. • Understanding colour codes of CAT5 cable.
• 568A and 568B convention.
• Network Cabling
• Introduction to Data Communication – Analog and Digital Signals, Simplex, Half-Duplex, and Full-Duplex transmission mode. Network Model
• The functions of different layers in OSI and TCP/IP model.
• Concept of wireless networking, wireless survey.

• Configuration of Data communication equipment
• Network Components - Modems, Firewalls, Hubs, Bridges, Routers, Gateways, Repeaters, Transceivers, Switches, Access points, etc.
• Types, functions, advantages, and applications of Network Components.
• Layer 2 manages switch configuration and uses it on the network.
• Latest emerging concepts using open source simulators.
• Layer 3 switch configuration.
• VLAN Basic and Configurations.
• Understand the use of Network simulation software and the process of using it.

• IP Addressing & TCP/IP • Protocols, TCP/IP, FTP, Telnet etc.
• Classes of IP Addressing.
• Setting IP Address (IP4/IP6) & Subnet Mask.

• Other Network Protocols
• Simple Mail Transfer Protocol (SMTP)
• Telnet
• File Transfer Protocol (FTP)
• Hyper Text Transfer Protocol (HTTP)
• Simple Network Management Protocol (SNMP).
• LDAP (Lightweight Directory Access Protocol).
• Introduction to Network Security.
• Concept of Dynamic Host Control Protocol.

• Sharing Resource & Internet connection
• Concept of committed bandwidth.
• Concept of the Internet.
• Architecture of Internet.
• DNS Server.
• Internet Access Techniques.
• ISPs and examples (Broadband, Dialup, Wifi).
• Concept of Social Networking Sites, Video Calling & Conferencing.
• Concept of Virus and its Protection using Anti Virus, UTM, and Firewall.
• SSID
• Concept of wireless controllers.
• Concept of SD WAN.
• Concept of resource sharing through the h network.
• Working principle of Proxy Server.
• The objective of using it.
• Features of Proxy Server.
• Concept of VPN.

• Network Protection and troubleshooting
• Collaborating using wired and wireless networks, Protecting a Network, Network performance study and enhancement.
• Techniques & strategies to prevent various attacks on networking.

• Control & monitoring of network devices.
• Remote desktop software like NetMeeting, Team Viewer, etc.
• Audit process of a switch/router/APs etc.
• Surveillance using network devices, collaboration on the network for team optimization, and support activities.
• Remote management of devices.
• Network monitoring and maintaining techniques.

• Introduction to Windows Server
• Server concepts, installation step, and the configuration of the server.
• Concept of Active Directory and DNS.
• Setting up of DHCP, Routing, and remote access.

• Linux Server
• Basic configurations.
• Editing /etc/hosts file.
• Concept of DHCH, DNS, WEB SERVER(Apache), SUMBA
• Linux package and package installer.
• Concept of virtual server and containers, cloud computing

• Network Security
• Modern Network Security.
• Threats and the basics of securing a network.
• Secure Administrative Access.
• LAN security considerations.
• Aadhar based authentication.
• Wi-Fi security considerations.

• Network Security
• Modern Network Security.
• Threats and the basics of securing a network.
• Secure Administrative Access.
• LAN security considerations.
• Aadhar based authentication.
• Wi-Fi security considerations. CC, Inbox, Outbox, Address book, SPAM. IT Act & Law
• Introduction to Cyber Security.
• Introduction to Cyber Laws & IT Act.
• Importance of privacy and techniques to manage it.

1.

Professional Skill (Trade Practical)

1200

2.

Professional Knowledge (Trade Theory)

240

3.

Employability Skills

160

Total

1600