Sammary of the book Computers Part of your life computer application technology grade 11.
Topics
1. System Technologies
2. Internet and networking technologies
3. Information management
4. Social implications
5. Solution development
6. termenlogy list with definitions.
7. contains im...
CAT THEORY NOTES
GR 11
Topics
1. System Technologies
2. Internet and networking technologies
3. Information management
4. Social implications
5. Solution development
Contents
System Technologies and implications...................................................................................................2
Module it’s all about ICT....................................................................................................................2
Input and output................................................................................................................................4
Input..................................................................................................................................................4
Output...............................................................................................................................................6
Storage Memory and Processing:......................................................................................................9
Software...........................................................................................................................................12
Information Management:..................................................................................................................14
Computer management...................................................................................................................14
Social implications...............................................................................................................................16
The dark side of computing.............................................................................................................16
Network and internet technologies.....................................................................................................18
Terminology.........................................................................................................................................21
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System Technologies and implications
Module it’s all about ICT
ICT in Information Processing:
- Data Entry: Inputting information into computer systems efficiently
- Data Analysis: Utilizing ICT tools to analyze and interpret data for decision-
making
ICT and Effective Communication:
- Quick Communication: ICT facilitates swift communication with stakeholders
- Collaboration: Enhances effective collaboration among employees and project
teams
Drawbacks of ICT:
- Security Risks: Potential vulnerabilities leading to unauthorized access or data
breaches
- Ergonomic Risks: Prolonged use of ICT devices may lead to physical strain or
health issues
ICT-Related Careers and Skills:
- Software Development: Creating and maintaining computer programs
- Web Development: Building and managing websites
- IT Support: Providing technical assistance
- Data Analysis: Analyzing and interpreting data
- Graphic Design: Creating visual content using ICT tools
Dedicated Devices vs General-Purpose Computers:
- Dedicated Devices: Specific tasks (eg, smartphones)
- General-Purpose Computers: Versatile tasks (eg, desktops, laptops)
Role of Memory in Computer Power:
- More Memory: Enables storage of data and concurrent program execution
Hardware Specifications Affecting Computer Power:
- Processor Speed
- Graphics Card Type
- Storage Space
Advantages of Laptops over Desktops:
- Portability
- Compact Size
Preserving Laptop Battery Life:
- Reduce Screen Brightness
- Turn Off Unnecessary Features
- Use Power Saving Mode
Convergence in Smartphones:
- Combining phone, camera, and computer features in one device
Smartphone Operating Systems:
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- Android
- iOS
Additional Smartphone Features:
- GPS
- NFC
- Bluetooth
Choosing a Computer for Research:
- A server is unsuitable; it's designed for network services, not individual tasks
Disabling USB Ports in Organizations:
- Prevents unauthorized access and malware spread
Micro-USB Definition and Device:
- Smaller USB connector found in smartphones, tablets, and cameras
Preventing Computer Theft in the Workplace:
- Security cable attaches laptops to fixed objects
Enhancing Data Security with Encryption:
- Encrypts data to ensure it's unreadable without the decryption key
Off-Site Backup Importance:
- Protects backups from physical disasters like fires or floods
Reasons to Consider Purchasing a UPS:
- Protects from power surges
- Provides backup power during outages
Server and Clients:
Server is powerful computer that provides services and resources to clients
Client is a computer that uses services and resources from server
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