1. Computer Installation
Computer installation involves setting up both hardware and software so that a system is operational.
1.1 Hardware Installation
Assembling components: motherboard, CPU, RAM, power supply, storage (HDD/SSD), GPU
Connecting peripherals: monitor, keyboard, mouse, printer, scanner
Cabling and power connections
BIOS/UEFI configuration
Ensuring proper grounding and ventilation
1.2 Software Installation
Installing operating systems (Windows, Linux, macOS)
Installing device drivers (chipset, graphics, network, audio)
Installing application software (office tools, browsers, utilities)
Configuring system settings and user accounts
Activating OS and licensed software
2. Computer Repairing
Computer repairing focuses on diagnosing and fixing hardware and software faults.
2.1 Hardware Repair
Common issues and remedies:
No power: check SMPS, power cable, motherboard
No display: test RAM, GPU, monitor, CMOS reset
Overheating: clean dust, replace thermal paste, check fans
Hard disk failure: replace disk, recover data if possible
Peripheral faults: test ports, cables, and drivers
Tools used:
Multimeter
Screwdriver set
POST card
Anti-static wrist strap
2.2 Software Repair
OS boot failure troubleshooting
Virus and malware removal
Repairing corrupted system files
Fixing driver conflicts
Software reinstallation and updates
Data backup and recovery
3. Computer Maintenance
Maintenance ensures long-term performance, reliability, and security.
3.1 Preventive Maintenance
Regular system cleaning (internal and external)
Dust removal from fans and heat sinks
Checking cables and connectors
Monitoring system temperature and health
Using UPS and surge protectors
3.2 Software Maintenance
Regular OS and software updates
Antivirus installation and scanning
Disk cleanup and defragmentation (HDD)
Managing startup programs
Creating restore points and backups
3.3 Corrective Maintenance
Replacing faulty components
Fixing recurring software errors
Restoring system from backup after failure
4. Safety and Best Practices
Always disconnect power before hardware work
Use anti-static precautions
Follow manufacturer guidelines
Maintain proper documentation of repairs
Use genuine and compatible components
5. Applications and Career Scope
IT support technician
Hardware engineer
Network support assistant
Computer service center technician
Freelance PC repair professional