Hardware
Computer hardware refers to the physical parts of the computer.
Parts of the Computer:
- SMPS
- RAM
- ROM
- Processor
- Hard disk
- Bios
- CMOS
- I/O Device
- Cooling Fan
- Cables
note:
- C-O-M-P-U-T-E-R: Common Operating Machine Purposely Used for Technological and Educational Research
SMPS:
Hard Disk:
- Switched-Mode Power Supply/ Switching Mode Power Supply
- Provides the power supply to the entire system
- it has 20 or 24 pins
How to check the SMPS it's working or not...?
Use one Copper wire, to sort green and anyone Black wire, then give the power supply, if the fan running there is no problem in SMPS.
SMPS voltage Level and Colour code:
- RED - Supply Power for all IC ( I.C - Integrated Circuit )
- BLACK - Ground - COM
- Green - System ON/OFF
- Blue - Mother Board Power supply
- White - D-RAM
- Yellow - For all Motors
- Orange - Memory usage
- Violet - Idle mode, Stand by mode
- Grey - Boot
RAM:
- Random-access memory
- It's used for speed and storage purposes
- it is a primary memory
- it is a Volatile Memory
Type of RAM:
- Static Ram
- Dynamic Ram
- DDR1
- DDR2
- DDR3
[DDR-Double Data Rate]
ROM:
- Read-Only Memory
- it is inbuilt memory
- it is a Primary Memory
- it is a non-Volatile Memory
Types of ROM:
Processor:
- It is the Heart or brain of the computer.
- All work is done in a processor only
note: ALU-Arithmetic - Logical - Unit
Hard Disk:
- It is used for storage purpose
- It is a Secondary device
Types Of Hard disk:
- Parallel Advanced Technology Attachment (PATA)
- Serial ATA (SATA)
- Small Computer System Interface (SCSI)
- Solid State Drives (SSD)
C MOS:
- Complementary Metal Oxide Semiconductor
- It is used for data and Time Purpose
BIOS:
- Basic input-output system
- It controls the system Hardware
- It Stores the all basic information of the system
- It acts as an interface between hardware and software(OS)
