CPU

• • CPU is considered as the brain of the computer.
• • CPU performs all types of data processing operations.
• CPU stores data, intermediate results, and instructions (program).
• CPU controls the operation of all parts of the computer.
• CPU

  
• CPU itself has the following three components: Memory or Storage Unit, Control Unit, Arithmetic Logic Unit.
• CPU

  A) input unit

  B) control unit

  C) output unit

  D) arithmetic & logic unit

  E) memory unit

  
• The memory or storage unit supplies information to other units of the computer when needed.
• Memory or Storage Unit - is also known as internal storage unit or the main memory or the primary storage or Random Access Memory (RAM).
• Memory or Storage Unit - is also known as internal storage unit or the main memory or the primary storage or Random Access Memory (RAM).
• Memory or Storage Unit - is also known as internal storage unit or the main memory or the primary storage or Random Access Memory (RAM).
• Memory or Storage Unit - is also known as internal storage unit or the main memory or the primary storage or Random Access Memory (RAM).
• The memory or storage unit's size affects speed, power, and capability.
• The two types of memory in the computer are primary memory and secondary memory.
• The memory or storage unit's size affects speed, power, and capability.
• The storage unit stores all the data and the instructions required for processing.
• The storage unit stores intermediate results of processing.
• The storage unit stores the final results of processing before these results are released to an output device.
• All inputs and outputs are transmitted through the main memory.
• Control unit controls the operations of all parts of the computer but does not carry out any actual data processing operations.
• Control unit is responsible for controlling the transfer of data and instructions among other units of a computer.
• Control unit manages and coordinates all the units of the computer.
• Control unit obtains the instructions from the memory, interprets them, and directs the operation of the computer.
• Control unit communicates with Input/Output devices for the transfer of data or results from storage, but it does not process or store data.
• The ALU consists of two subsections namely, the arithmetic section and the logic section.
• Function of arithmetic section is to perform arithmetic operations like addition, subtraction, multiplication, and division. All complex operations are done by making repetitive use of the above operations.
• Function of logic section is to perform logic operations such as comparing, selecting, matching, and merging of data.