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CPU box is consists  of various hardware  components present inside it. The hardware  inside
                  the CPU box are Memory and Storage Devices, Main Circuit (Motherboard), Power Controller
                  (SMPS), Processor, Ports, Cards etc.

                  The three main components of the CPU are:
                  •  ALU (Arithmetic Logic Unit): Performs mathematical and logical operations.

                  •  CU (Control Unit): Directs all the operations of a processor.
                  •  Memory Unit: Stores data and instructions.

                     Info Byte

                      The speed of a CPU is measured in Hertz (Hz). The higher  the value, the faster the
                      information is processed by the CPU.

                  Motherboard


                  The  motherboard  is sometimes called  the  system board  or  main
                  circuit board. It lies inside the CPU, to which all the hardware devices
                  are  connected.  Many  electronic  components  are  attached  to  the
                  motherboard or are built into it.
                  The motherboard contains the connectors or slots for attaching additional boards, the CPU and
                  memory. The chips that are attached on the motherboard are known as the ‘Motherboard Chipset’

                                          SMPS

                                          Switched Mode Power Supply (SMPS) is an electric regulator component
                                          that receives electricity from the main power supply and then supplies
                                          appropriate power to the other components of the computer. It takes the
                                          required amount of electricity from mains or UPS and converts the AC
                  current into DC current with required voltage.
                  It has a switching regulator which controls the output voltage. It also has an in-built fan to
                  reduce the heat.

                  Disk Drive

                  A disk drive is an internal hardware component of the computer system that is used to read
                  and write on storage disks. Disk drives can either be located internally within a CPU box or in a
                  separate box that is external to the CPU box. Most disk drives work in a similar fashion. They spin
                  the disk for reading and writing data on the disk. The hard disk drive is the most commonly used
                  disk drive. Some other types of disk drives are Compact Disk (CD) drives, Digital Versatile Disk
                  (DVD) drives, and Blu-ray Disk (BD) drives.













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