Topic Summaries
Optical storage
COMPUTER SYSTEMS: Systems architecture
COMPUTER SYSTEMS: Computer systems
COMPUTER SYSTEMS: Memory and storage
COMPUTER SYSTEMS: Number systems
COMPUTER SYSTEMS: Encoding and compression
COMPUTER SYSTEMS: Networks
COMPUTER SYSTEMS: The internet
COMPUTER SYSTEMS: Network topologies
COMPUTER SYSTEMS: Wired and wireless networks, protocols, and layers
COMPUTER SYSTEMS: Threats to computer systems and networks
COMPUTER SYSTEMS: Operating systems and utility software
COMPUTER SYSTEMS: Impact of technology on society
ALGORITHMS AND PROGRAMMING: Computational thinking
ALGORITHMS AND PROGRAMMING: Algorithm representation
ALGORITHMS AND PROGRAMMING: Types of data
ALGORITHMS AND PROGRAMMING: Programming fundamentals
ALGORITHMS AND PROGRAMMING: Programming techniques
ALGORITHMS AND PROGRAMMING: Producing robust programs
ALGORITHMS AND PROGRAMMING: Testing programs
ALGORITHMS AND PROGRAMMING: Designing, creating, and refining algorithms
ALGORITHMS AND PROGRAMMING: Boolean logic
ALGORITHMS AND PROGRAMMING: Programming languages
ALGORITHMS AND PROGRAMMING: Python
ALGORITHMS AND PROGRAMMING: Artificial Intelligence (AI)
COMPUTER SYSTEMS: Systems architecture
COMPUTER SYSTEMS: Computer systems
COMPUTER SYSTEMS: Memory and storage
COMPUTER SYSTEMS: Number systems
COMPUTER SYSTEMS: Encoding and compression
COMPUTER SYSTEMS: Networks
COMPUTER SYSTEMS: The internet
COMPUTER SYSTEMS: Network topologies
COMPUTER SYSTEMS: Wired and wireless networks, protocols, and layers
COMPUTER SYSTEMS: Threats to computer systems and networks
COMPUTER SYSTEMS: Operating systems and utility software
COMPUTER SYSTEMS: Impact of technology on society
ALGORITHMS AND PROGRAMMING: Computational thinking
ALGORITHMS AND PROGRAMMING: Algorithm representation
ALGORITHMS AND PROGRAMMING: Types of data
ALGORITHMS AND PROGRAMMING: Programming fundamentals
ALGORITHMS AND PROGRAMMING: Programming techniques
ALGORITHMS AND PROGRAMMING: Producing robust programs
ALGORITHMS AND PROGRAMMING: Testing programs
ALGORITHMS AND PROGRAMMING: Designing, creating, and refining algorithms
ALGORITHMS AND PROGRAMMING: Boolean logic
ALGORITHMS AND PROGRAMMING: Programming languages
ALGORITHMS AND PROGRAMMING: Python
ALGORITHMS AND PROGRAMMING: Artificial Intelligence (AI)
- Optical storage (like CDs, DVDs, and Blu-ray discs) uses a laser to read data stored as tiny pits and lands on a disc’s surface.
- Laser light reflects off lands (read as 1) and scatters off pits (read as 0). These patterns represent binary data.
- Blu-ray uses a blue laser to read smaller pits, allowing more data to be stored.
- This method allows data to be read quickly, but discs are easily scratched and have lower capacity compared to modern storage types.
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