Computer Hardware Technician

Computer Hardware Technician Module-1 “PC Components and Functions” After completion of this module the trainee will be able to: Apply theoretical knowledge gain on PC Hardware components & functions to practical situations. By S.Lankeswaran, BSc. in CS Module-1

System case • • • • • •

Parts of the system case Styles and sizes Form factor Case switches Case LEDs Drive bays.

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Go to System Case

Power Supply Unit • • • • • •

External power Power supply unit Types Power exhauster Fans Power pin voltages Wire colour code

Go to PSU

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Motherboard & system devices • • • • • • • • •

Motherboard parts Integrated components System chipset System buses System BIOS System cache System resources. Slots Ports

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The Microprocessor • • • • • • • •

Digital logic Physical characteristics Architecture Operation Families Speed Types Pin numbering

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System Memory • • • • • • • • • •

Memory technology Types Speed Access and timing DRAM & RDRAM technology Size and packaging Errors detection & correction Logical memory layout SD RAM, DDR RAM Capacities Sharing Memory

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Display Cards • • • • • • • • • •

Video system interfaces Video modes Resolution and color Video memory Speed and technology Video display standards 3D video acceleration Full motion video Card performance Accelerated graphic

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Visual Display Units • • • • • • •

Construction and operation Resolution Color and refresh Monitor size Monitor power Safety LCD technology

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Harddisk Drive 1. 2. 3. 4. 5.

Brief history Operational overview Platters and media Read write heads Read write head operation and technology 6. Hard disk head sliders 7. Arms and actuators 8. Spindle motor 9. Hard disk connectors and jumpers 10.Hard disk cache 11.Hard disk packaging and mounting 12.Data encoding and decoding 13.Tracks Cylinders and sectors 14.Formatting and capacity

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1. Disk quality and reliability 2. SCSI disks 3. RAID technology 4. BIOS and hard disk 5. Hard disk size barriers 6. Overcoming BIOS disk size barriers 7. Hard disk interfaces and configuration 8. Operating systems and file systems 9. PC file system 10.Disk structure and boot process 11.FAT 12.Clusters and file allocation 13.Partitioning, disk compression 14.New Technology File System (NTFS)

Floppy Disk Drive • Construction and operation • Disk formats and logical structures • Disk interface and configuration

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CD/ DVD Drive • • • • • • • • •

Construction and operation Compact disk media Formats CD-R CD-RW CD-ROM performance and reliability CD-ROM interface and configuration DVD Technology DVD family and DVD formats.

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