김태오

Infrastructure as a Service (IaaS), Software as a Service (SaaS), and Platform as a Service (PaaS) are three primary cloud computing service models that enable businesses and individuals to access various computing resources and services over the internet. These service models offer different levels of abstraction, control, and customization based on the specific needs of the user. Infrastructur..

User mode and kernel mode, also known as user space and kernel space, are two distinct execution modes in modern computer systems that separate the privileges and access rights of the operating system (OS) kernel and user applications. This separation is crucial for maintaining system stability, security, and resource management. User Mode (User Space): User mode is the less privileged execution..

Interrupts, traps, and faults are mechanisms used in computer systems to handle events that require the attention of the CPU, alter the normal flow of program execution, or manage errors and exceptional conditions. Interrupt: An interrupt is an external event or signal that temporarily suspends the normal flow of a running program and requests the CPU's attention. Interrupts can be generated by ..

OS : What helps softwares run well in a hardware CPU: - ISA (Instruction Set Architecture) CISC vs RISC RISC had decreased number of instructions, it reduced the complexity, resulting in high speed and CPU Clock. - Pipelining Fetch | Decode | Execute | Write Back Mainly used for enhancing performance by executing multiple instructions at once, which is called pipelining. - Instruction Level Para..