ADCHMN

1. Only short answer type and objective type questions are to be asked in the theory papers. 12 questions out of 15 questions of 5 marks may be asked to attempt by the student. Each question may be sub divided into 1-5 question.

2. At least 15 practical exercises must be carried out by each of the student in each paper.

3. Practical examiner will be a person who have the experience in the field of hardware maintenance

ELEMENTS OF COMPUTER SYSTEM

• What is a computer
• Block diagram of computer
• Characteristics of computer
• Hardware , Software and Firmware
• History and Generation of computers.
• Classification and types of computers.

COMPUTER HARDWARE AND INPUT / OUTPUT DEVICES

• General function of CPU, ALU, Control unit and memory
• The computer memory – RAM and ROM
• Secondary storage devices – Disk and optical disk, magnetic tape , general description of floppies and hard disk
• Input / Output devices – Monochrome and color monitors, keyboard, mouse, printers and plotters.

BASIC ELECTRONICS :

• Current , Voltage , Resistance, Capacitance, Inductance
• Types of Resistances, Color codes, Connecting Resistors and capacitors etc.
• Power and power dissipation.
• Introduction to transformers.
• Devices used to measure current, voltage, resistance etc.
• Introduction to semiconductor diodes.

TRANSISTORS

• Theory of transistors
• CE, CC CB, transistor amplifiers and their characteristics.
• Introduction to rectifiers and filters.
• Lead identification and checking of transistors
• Simple transistor circuits
• Introduction to ICs

EQUIPMENTS

• Measuring instruments – Multimeters, CRO, Logic Probe
• Introduction to Voltage Stabilizers, CVTs, UPS, Inverters

NUMBER SYSTEM

• Decimal, Binary, Octal Hexadecimal numbers.
• Presentation and conversion from one system to other.
• Representation of positive and negative floating point numbers
• Different codes used in computers – ASCII, EBCDIC BCD etc.

LOGIC GATES AND CIRCUITS.

• AND, OR , NOT , NAND ,NOR and EX-OR
• Boolean laws and theorem and truth table.
• Ideas of combinational sequential logic circuits
• Introduction to semiconductor memories.

MICROPROCESSORS

• Introduction to 8085 microprocessor
• Internal Architecture, Pin Layout
• Interfacing Memory
• Instruction Set of 8085
• Basic programming using 8085
• Introduction to 8086 microprocessor

INTERFACING WITH MICROPROCESSOR

• Interfacing technique with I/O ports
• Parallel I/O 8255
• Clock generator 8284
• Numeric co-processor 8087
• Bus controller – 8288
• comparison between 8088,80286,80386 SX /DX ,80486, Pentium

OVERVIEW OF SYSTEM

PC evolution: – PC; Evolution of PC through Pentium; PC classifications; 8088, 80286, 80386, 80486, Pentium. Introduction to other Microprocessors other than Intel Like AMD, Cyrix etc. and their processor range.

Inside the PC system unity: – PC system; PC system unit layout; System box, Motherboard, Motherboard memory, Expansion slots, Daughter board, SMPS, Display unit, Keyboard, Rear side connectors

Bus Architecture: – PC bus, PC-AT bus, ISA bus, PCI bus, EISA bus and USB BIOS: ROM BIOS, Hardware-BIOS- DOS interaction, Hardware BIOS windows interaction, and BIOS setup program

Advanced Systems : Card-less Mouse & Keyboards, Infrared Interface.

ASSEMBLING A PERSONAL COMPUTER.

Preparation of the Case; Configuration of the Motherboard; Installation of the Processor; Installation of the Memory; Prepare Drives for Installation; Installation of the Floppy Disk Drive; Installation of the Other Drives; Installation of the Motherboard; Connecting Cables to the Motherboard; Installation of the Expansion Cards; Perform the “Smoke Test”; Installation of the Software; Finishing Touches, BIOS /CMOS Setup Program; Various setup Options

COMPUTER SOFTWARE

• Knowledge of different types of programming language.
• Packages Vs programs
• Necessity of software packages.
• Application Vs system software
• Main software packages available for general use.

DISK OPERATING SYSTEM

• Idea about operating system
• Different functions of operating system
• Some facts about DOS and Windows
• System files, booting sequence
• Internal and external commands.
• Batch files.

VIRUSES , ANTI VIRUSES AND UTILITIES

• Introduction to viruses
• Types of Viruses
• How viruses spread
• Virus detection programs
• Virus prevention & removal
• Anti virus vaccines
• Use of disk manager (DM), NDD etc.

Operating Systems: – Introduction to the OS; Microsoft Operating Systems (DOS

Versions and Windows versions); Installing Windows 98 and XP :- Pre-installation Checks; Setup Methods; The Setup Process; Re-starting the Computer and Finishing to Installation; Setup Failure and Recovery
Windows 7 Setup: – Hardware Requirements; Disk Partitions; File SystemChoices;

Running the Setup Program; Stages of Setup; Windows 7 root Files; The Recover Console

CONFIGURATION

Configuring Drivers.- Configuring DOS Drivers; Configuring Windows 9X Drivers; Requirements [or Plug and Play; The Device Manager Configuring Printing: – Windows XP/7 Printing;

The Windows Registry And Other Os Configuration Files :-Overview of OS configuration files – DOS (AUTOEXEC.BAT, CONFIG.SYS); Windows 98, Windows NT SYSTEM .DAT, USER.DAT)
Windows XP,WINDOWS 7 (BOOT.INI)

Editing the Registry: – Registry entry structure; Avoiding Registry backup pitfalls; modifying entries with REGEDIT and REGEDIT 32

System configuration Issues: – Upgrading Windows 98 to Windows XP Dual-booting Windows XP /7 with Windows 98

MOTHERBOARD

• Idea about faster microprocessor motherboard 80286, 80386,80486 ,Pentium
• Idea about dataflow
• Function of different chips in motherboard
• Dump and smart chips
• Identification of different cards and adapters
• Pin configuration and details of cables – RS 232 – 25 pins, RS 232 C 9 pins , power
• cable testing

BASIC TROUBLE SHOOTING AND MAINTENANCE

• Maintenance flow charts, routine checks
• DIP switch setting
• Jumper setting , installing new motherboards
• Rum problems , their diagnostics and preventing maintenance
• Identification of bad sectors.

ADVANCE TROUBLE SHOOTING

• Tools and components
• Startup problems , run problems
• Display problems
• Circuit board repairs.
• Disassembly hints for PC – XT /AT
• SWITCH MODE POWER SUPPLY
• Circuit diagram and pin assignments
• Working of SMPS
• Input and load requirements
• Connecting a PC and peripherals to power supply

POWER SUPPLY MAINTENANCE

• Cautions about opening power supply
• Over voltage and over current protection
• Upgrading the power supply, various test for fault tolerance.
• Problem of dissimilar earth and loose connection
• Protecting the PC from AC

MONITORS

• Block diagram of monochrome monitors.
• Pixels and resolution
• Sync section , video amplifier
• Display basics , test modes and graphic mode
• Display adapter cards, HGA , CGA , VGA, EGA and super VGA, XVGA
• How they fail , trouble shooting and elimination , maintenance chart
• Monitor adjustments, size, brightness, focus etc.
• Fault in various sections of monochrome monitors
• Block diagram of color monitors, basic color theory, faults in color section

KEYBOARDS

• Study of keyboards , types , interface 8048
• Interconnection to PC
• Common faults and diagnostics
• Introduction to mouse on serial ports
• Parallel port card, serial port card, integrated card
• Joy stick, light pen, graphics table controller

PRINTERS

• Types of printers.(DMP,INKJET,LASER,LINE)
• Assembling & Deassembling
• Connecting printers to computers.
• Preventive maintenance of printers.
• Trouble shooting

MEMORIES

• How memory works
• Memory speed , access time, wait states,
• Types of memory
• Dynamic and Static RAM, memory chip making
• Cache memory , shadow RAM, ROM chips
• Reading memory error messages , adding RAM
• Tips on installing memory chips
• Static and handling precautions

HARD DISKS

• Types, structure, working principles.
• Disk structure : Cylinders , heads , platters, tracks and sectors, structure of a disk, cluster
• Performance: access time, seek time, latency period, data transfer rates, and interleave factors.
• 1:1 hard disk controllers.
• Types of interface between controller and drives
• Hard disk software installation : Physical formatting , partitioning , high level formatting
• Hard disk installation

FLOPPY DISKS

• Types, structure, working principles.
• Removing , configuring and installing floppy disk drive
• IDE controller card.

CD-ROM drive

• Types, structure
• CD drives mechanism installation of CD drive.
• Mastering advanced-drive technologies: -CD-ROM: SCSI\CD-R, CD-RW, DVD-ROM
• Working principals, types and installation of Mouse, Scanner, Modem

NETWORK INTRODUCTION

• Need , advantages
• Types – server based, peer , hybrid
• Server types
• Network topologies-Bus, Star, Ring, Star Bus, Star Ring, Mesh
• Network Protocols – Hardware protocols, software protocols
• Selecting and design the network for an organization
• Signal transmission – Digital signaling , Analog signa ling
• Bit Synchronization
• Baseband and broadband transmission
• Network media types , properties and specialities, comparative study

THEORETICAL AND REAL WORLD NETWORK

• OSI and IEEE 802 model
• Network Technologies – Ethernet, working principles, 10 & 100 MBPS Ethernet,GIGABIT Ethernet
• Token ring, FDDI, ATM, Arcnet.
• Network scaling – No of computers, distance, software, speed, special requirements
• Network connectivity – Hubs, repeaters, bridges, multiplexers
• Internet connectivity – Routers, Brouters, Gateways, CSUs/DSUs

NETWORK INSTALLATION AND ADMINISTRATION

• (USING WINDOWS XP/7/2003/2008)
• Various network operating systems
• Server Installation
• Client installation
• Configuration
• Minimum network administration
• Troubleshooting

INTERNET CONNECTIVITY

• Introduction to Internet.
• Basic internet services ( email, file transfer ,telnet, chatting)
• ISP , connectivity (dial up , leased line , ISDN)
• Internet configuration

LINUX

• History of Linux
• Features, Advantages and Disadvantages
• Hardware requirements
• File system and basic commands
• Installation and configuration of various devices.
• Installation and configuration of network in Linux.
• Building LAN with Linux and Linux-Windows Interaction.
• Minimum network administration
• Troubleshooting

Router

• Introduction,configuration &,maintenance

Server

• Introduction,Installation & Configuration of Domain, DNS, DHCP, IIS, FTP, VPN, IAS, Radius, Cluster

LIST OF EQUIPMENTS REQUIRED

• MULTIMETERS (ANALOG AND DIGITAL)
• LOGIC PROBES
• AD – DC KITS FOR PERFORMING PRACTICALS RELATED TO ANALOG AND
• DIGITAL ELECTRONICS
• 8085 MICROPROCESSOR KITS (FROM DYNALOG OR OTHER MAKERS)
• CRO FOR MEASURING AND DISPLAYING WAVE FORMS
• DIFFERENT TYPES OF MONITORS [CGA (B/W AND COLOR), VGA (B/W AND COLOR)]
• DIFFERENT TYPES OF DISK DRIVES (FLOPPY DRIVES 5.25” / 3.5” ) HARD DISK
• DRIVES (ST SERIES ,IDE SERIES , SCSI ) , CD DRIVES
• VARIOUS CARDS ( LAN CARDS , DISPLAY CARDS ,FAX MODEM CARDS , DISK
• DRIVE CONTROLLER CARDS , SOUND CARD,
• WORKING COMPUTERS FOR OS INSTALLATION AND NETWORKING
• VARIOUS TYPES OF CABLES(CO-AXIAL , CAT 5 , FIBRE OPTIC) AND
• CONNECTORS (BNC, RJ – 45) USED IN NETWORK CONNECTION
• HUBS / SWITCHES USED FOR CONNECTING COMPUTERS
• DMP AND INKJET PRINTERS FOR TROUBLESHOOTING

ADCHMN-1

1. Measurement of current, voltage and capacitance
2. Verification of ohm’s Law
3. Testing semiconductor diodes and their characteristics
4. Testing transistors

ADCHMN –2

1. Study of Logic Gates
2. Use of NAND and NOR Gates to construct Basic Gates
3. De-Morgan’s Theorem Verification
4. Verification of SOP and POS
5. Simplifying equation using K -MAP
6. Mathematical operation using 8085 Microprocessor
7. 7- Segment display interfacing using 8255.
8. Analysis of various parts of computer.

ADCHMN –3

1. Computer assembly
2. Setting up BIOS
3. Operating System Installation (DOS/ Windows)
4. Configuration of various devices
5. Virus Detection and removal

ADCHMN – 4

1. Analysis of various types of Motherboards
2. Measurement of voltage at different section of motherboard
3. Jumper setting / Dip switch setting
4. Measurement of voltage at different color wires of SMPS
5. Measurement of Power good signal.

ADCHMN – 5

1. Analysis of power supply , Horizontal and Vertical sections of monitor.
2. Simulated faults on above section and their rectification.
3. Analysis of various types of printers ( Ink Jet ,DMP, Laser etc.)
4. Analysis of various types of connections ( USB, Serial, Parallel)
5. Preventive maintenance of printer.
6. Installing RAM
7. Installation of HDD, FDD, CD drives.
8. Partitioning and formatting hard disk drives.
9. Low level formatting of Hard disk.10. Installation of Mouse and Modem.

ADCHMN – 6

1. Analysis of Various components used for Networking

a. Various types of cables
b. Connectors ( BNC, Tee, Terminators, RJ- 45 etc.)
c. Hubs and switches
d. NIC
2. Installation of window Server & client
3. Various administrative tasks
a. Creating users
b. Assigning rights
c. Creating policies
4. Internet configuration on single PC 5. Sharing Internet account 6. Using FTP and Telnet 7. Linux installation