RTOS
A real-time operating system that retains only core functions such as task scheduling and memory management. It has a small code size, a small attack surface, low power consumption and fast startup, but limited interaction capability, and is commonly used in security devices such as hardware wallets.
Timeline (last 90 days)
Atom's shift from the RTOS route to Android means the security model changes from "the system itself is simple enough to be trusted" to "although the system is complex, the private key is protected through an isolation layer."
Ledger chose Android rather than a self-developed RTOS or a trimmed embedded system because it can reuse mature display frameworks, touch drivers and secure update pipelines, lowering the cost of building an interactive system from scratch.
RTOS is a technology foundation long adopted in the hardware wallet field, retaining only core functions such as task scheduling and memory management, with code size typically only tens of KB to a few MB, and with almost no network protocol stack, graphics framework or third-party application ecosystem.
Hardware wallet products such as Trezor and the early Ledger Nano are based on trimmed systems like RTOS, so they have a small attack surface, low power consumption and fast startup, but weak interaction capabilities, usually able to complete all operations only with two or three physical buttons and a small monochrome screen.
High-speed sorting systems typically rely on hardware interrupts or real-time operating systems (RTOS) to ensure precise synchronization among conveyor speed, camera exposure, inference latency, and nozzle trigger timing.
Baseband firmware runs on a dedicated real-time operating system (RTOS) with the highest privileges for direct access to radio frequency hardware, and some implementations can access device memory.
Embedded devices often run real-time operating systems (RTOS) or deeply customized Linux kernels, with memory ranging from only tens of KB to a few MB, making them unable to support general-purpose security agents.
FreeRTOS and Zephyr are commonly used in the RTOS real-time operating system domain
All Facts (9)
PLC采用确定性操作系统（RTOS），能够以毫秒甚至微秒级的响应时间执行控制指令
95%UnverifiedAtom's shift from the RTOS route to Android means the security model changes from "the system itself is simple enough to be trusted" to "although the system is complex, the private key is protected through an isolation layer."
50%UnverifiedLedger chose Android rather than a self-developed RTOS or a trimmed embedded system because it can reuse mature display frameworks, touch drivers and secure update pipelines, lowering the cost of building an interactive system from scratch.
50%UnverifiedRTOS is a technology foundation long adopted in the hardware wallet field, retaining only core functions such as task scheduling and memory management, with code size typically only tens of KB to a few MB, and with almost no network protocol stack, graphics framework or third-party application ecosystem.
50%UnverifiedHardware wallet products such as Trezor and the early Ledger Nano are based on trimmed systems like RTOS, so they have a small attack surface, low power consumption and fast startup, but weak interaction capabilities, usually able to complete all operations only with two or three physical buttons and a small monochrome screen.
50%UnverifiedHigh-speed sorting systems typically rely on hardware interrupts or real-time operating systems (RTOS) to ensure precise synchronization among conveyor speed, camera exposure, inference latency, and nozzle trigger timing.
50%UnverifiedBaseband firmware runs on a dedicated real-time operating system (RTOS) with the highest privileges for direct access to radio frequency hardware, and some implementations can access device memory.
50%UnverifiedEmbedded devices often run real-time operating systems (RTOS) or deeply customized Linux kernels, with memory ranging from only tens of KB to a few MB, making them unable to support general-purpose security agents.
50%UnverifiedFreeRTOS and Zephyr are commonly used in the RTOS real-time operating system domain
50%