181. What is a key challenge in quantum operating systems?
- a) Managing qubit decoherence and error correction
- b) Supporting legacy x86 applications
- c) Implementing virtual memory
- d) Disk scheduling algorithms
Answer: A - Qubits lose state quickly (microseconds) requiring specialized error correction (e.g., surface codes).
182. Which company developed the first quantum OS?
- a) Cambridge Quantum Computing (now Quantinuum)
- b) Microsoft
- c) IBM
- d) Google
Answer: A - t|ket⟩ OS optimizes quantum circuit execution across hardware.
183. What is "neuromorphic computing" in OS design?
- a) Brain-inspired architectures with spiking neural networks
- b) Quantum annealing
- c) Optical computing
- d) DNA storage
Answer: A - Used in Intel Loihi and IBM TrueNorth chips for low-power AI.
184. Which OS feature is irrelevant in post-quantum cryptography?
- a) Disk fragmentation handling
- b) Quantum-resistant algorithms (e.g., CRYSTALS-Kyber)
- c) Entropy collection for key generation
- d) Hardware security modules
Answer: A - Post-quantum security focuses on cryptographic agility, not storage optimization.
185. What is "photonic computing" OS requirement?
- a) Nanosecond-scale scheduling for light pulses
- b) GPU driver support
- c) Magnetic tape storage
- d) x86-64 compatibility
Answer: A - Light-based computation requires ultra-low latency task switching.
186. Which OS paradigm uses "memcomputing"?
- a) Processing-in-memory architectures
- b) Cloud server virtualization
- c) Blockchain mining
- d) Edge computing
Answer: A - Eliminates von Neumann bottleneck (e.g., UPMEM PIM chips).
187. What is "biological OS" research focus?
- a) DNA-based storage and biocomputing
- b) Organic LED displays
- c) Biodegradable hardware
- d) Photosynthesis-powered devices
Answer: A - Microsoft's DNA storage project achieves 1 exabyte/mm³ density.
188. Which quantum OS component manages "quantum volume"?
- a) Circuit compiler with noise-aware qubit mapping
- b) Filesystem driver
- c) Network stack
- d) Power management
Answer: A - Optimizes for maximum usable qubits given error rates.
189. What is "cognitive computing" OS requirement?
- a) Continuous learning from unstructured data
- b) Fixed instruction sets
- c) Deterministic scheduling
- d) Manual feature engineering
Answer: A - IBM Watson OS adapts to medical/language patterns.
190. Which OS is designed for optical computers?
- a) Lightwave OS (research prototype)
- b) Windows 11
- c) macOS
- d) Android
Answer: A - Manages femtosecond laser pulses instead of electrons.
191. What is "reversible computing" in OS design?
- a) Energy-neutral operations via logical reversibility
- b) Undo features in apps
- c) Bidirectional data buses
- d) Rewritable CDs
Answer: A - Theoretical limit: 0 energy loss per operation (Landauer's principle).
192. Which company develops "Q# quantum runtime"?
- a) Microsoft
- b) Google
- c) AWS
- d) Intel
Answer: A - Runs on Azure Quantum with topological qubit simulation.
193. What is "spintronics" relevance to OS?
- a) Electron spin-based memory management
- b) Fan speed control
- c) Disk rotation optimization
- d) Screen refresh rates
Answer: A - MRAM uses spin states for non-volatile storage (Everspin chips).
194. Which OS feature is critical for DNA storage?
- a) Error-tolerant encoding (e.g., Fountain codes)
- b) FAT32 compatibility
- c) Magnetic tape drivers
- d) NTFS permissions
Answer: A - DNA synthesis/sequencing has high error rates (~1%).
195. What is "hyperdimensional computing" OS role?
- a) Manages vector symbolic architectures
- b) Cloud container orchestration
- c) GPU shader compilation
- d) Blockchain consensus
Answer: A - Uses 10,000+ dimensional vectors for brain-like reasoning.
196. Which quantum OS uses "quantum circuits as services"?
- a) Azure Quantum Development Kit
- b) AWS Braket
- c) Google Cirq
- d) IBM Qiskit Runtime
Answer: A - Treats quantum operations as cloud microservices.
197. What is "probabilistic computing" OS requirement?
- a) Bayesian inference accelerators
- b) Exact floating-point math
- c) Deterministic scheduling
- d) Solid-state drives
Answer: A - Handles stochastic processes (e.g., MIT's PCP chip).
198. Which OS supports "resistive computing" devices?
- a) Crossbar RRAM OS
- b) Windows 11
- c) Linux
- d) FreeBSD
Answer: A - Manages memristor-based in-memory computing.
199. What is "ternary computing" OS challenge?
- a) Balancing logic (-1, 0, +1 states)
- b) Backward compatibility
- c) Power management
- d) Device drivers
Answer: A - Requires new instruction sets (e.g., Russian Setun computer).
200. Which project develops "self-healing OS" for spacecraft?
- a) NASA's cFS (Core Flight System)
- b) Linux
- c> QNX
- d> FreeRTOS
Answer: A - Uses modular redundancy and AI for deep-space fault recovery.