Which of the following is known as Brain of computer?

The correct answer is CPU.

Key Points

• The CPU (Central Processing Unit) is often referred to as the brain of the computer because it handles all instructions it receives from hardware and software running on the computer.
• It performs the basic arithmetic, logic, control, and input/output (I/O) operations specified by the instructions in the program.
• The CPU is responsible for interpreting most of the computer's commands and executing tasks in sequence.
• Modern CPUs are typically composed of multiple cores, which allow them to execute multiple instructions simultaneously, enhancing performance.

Additional Information

• Microprocessor
  • A microprocessor is an integrated circuit that contains the functions of a central processing unit of a computer.
  • It is a compact form of a CPU and is used in various computing devices from small embedded systems to large servers.
  • Intel and AMD are the leading manufacturers of microprocessors for personal computers and servers.
• Clock Speed
  • The clock speed of a CPU is measured in gigahertz (GHz) and indicates how many cycles per second it can execute.
  • Higher clock speeds generally mean better performance, though other factors like core count and architecture also play significant roles.
• Multithreading
  • Multithreading allows multiple threads to be executed concurrently within a single CPU core, improving the efficiency of CPU resources.
  • It is crucial for applications that can perform multiple tasks simultaneously.
• Cache Memory
  • Cache memory is a small-sized type of volatile computer memory that provides high-speed data access to the CPU.
  • It stores frequently used program instructions to increase the general speed of the system.