Chapter3_Part_2_Evaluating Hardware (2)
Chapter 3 Part II: Evaluating Hardware
Page 1
Evaluating Hardware content overview
Page 2: Objectives
Explain considerations for purchasing technology devices
Characteristics and uses of input and output devices
Evaluate hardware performance
Prevent and troubleshoot hardware theft/failure
Distinguish internal, external, and cloud-based storage
Describe network hardware
Explain components like cases, motherboards, system clocks, processors, cooling, ALU, machine cycle, and registers
Discuss prevention of tech-related health injuries and disorders
Identify responsible e-waste disposal techniques
Page 3-4: Mobile Computer Buyer’s Guide
Research mobile computer manufacturers before purchase
Select appropriate form factor (tablet, ultrathin laptop, or traditional laptop)
Screen size considerations for laptops (11-17 inches) and tablets (7-12 inches)
Page 5: Keyboards and Pointing Devices
Experiment with different keyboard layouts and pointing devices
Ensure compatibility with finger sizes and preferred controls (touchpad or touchscreen)
Page 6: Upgrade Considerations
Opt for sufficient processor, memory, and storage upgrades upon purchase
Be aware that many mobile processors cannot be replaced later
Page 7: Ports and Slots
Ensure availability of built-in ports for device connectivity (USB, external monitor)
Page 8: Additional Considerations
Consider a second battery or external power pack for long usage
Use a padded ergonomic carrying case for travel
Check compatibility with projectors and other external devices
Page 9-10: Input and Output Devices
Definition and differentiation: Input (data entered) vs. Output (processed information)
Common input devices: keyboard, touchscreen, mouse, scanner, etc.
Common output devices: display, speakers, printers, etc.
Page 13-15: Data Representation in Computers
Computers use a binary system (0s and 1s) to represent data
Bits and bytes as building blocks of computer data
Character encoding: ASCII (8-bit) and Unicode (16-bit)
Page 18: Hardware Maintenance
Regular tasks needed to maintain hardware condition
Importance of preventive maintenance to avoid performance decline
Page 19-22: Maintenance Best Practices
Power down devices before maintenance
Clean screens with a damp cloth; use compressed air for keyboards
Prevent dust accumulation around vents; seek professional help for deep cleaning
Protect devices from extreme temperatures and power fluctuations using surge protectors or UPS
Page 23-24: Storage Management
Maintain sufficient storage; offload data when necessary
Prevent clutter and dust exposure for longevity
Page 25-26: Data Backups
Create regular backups to protect data against possible losses
Use online backup services or manual backups for security
Page 27-34: Storage Solutions
Internal Hard Drives (HDDs) vs. Solid-State Drives (SSDs)
External Drive flexibility for transporting data
Declining usage of optical media
Introduction to cloud storage and its advantages (remote access, sharing, off-site backups)
Page 36-40: Physical Health Hazards
Technology usage can lead to repetitive strain injury (RSI)
Symptoms of RSI and preventative measures, including ergonomic setups
Page 43-45: Behavioral Health Hazards
Technology addiction and its risks, along with impacts on social skills
Page 46-47: Social Health Hazards
Cyberbullying and its serious emotional impacts compared to traditional bullying
Characteristics that make cyberbullying harmful
Page 48-49: E-waste Disposal
Importance of responsible e-waste disposal to protect the environment
Recommended disposal methods: recycling, donating, and trade-ins
Page 50: Conclusion
End of Chapter 3 Part II