e12 parts of system unit
DESCRIPTION
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MOTHERBOARD
MOTHERBOARD. This is the central printed circuit board in many modern computers and holds many of the crucial components of the system, providing connectors for other peripherals. The motherboard is sometimes alternatively known as the mainboardorsystem board.
The CPU, or the Central Processing Unit, is the brain of the computer and one of the most important chip in the computer.New CPUs are small and square and contain multiple metallic connectors or pins on the underside. The CPU is inserted directly into a CPU socket, pin side down, on the motherboard.
Two Types of CPU Socket
1. LGA Land Grid Array (LGA). This socket has no holes, but instead pins are located from the CPU socket that makes contact with points on the underside of the CPU.
2. PGA Short for pin grid array, a processor sockets that use a pin grid array (PGA) where pins on the underside of the processor connect to holes in the processor socket.
Hard Disk Drive (HDD) is also known as hard drive. This is the computer's main storage device used to store all data on the computer permanently
CD-ROM/DVD-ROM DRIVE (CD means Compact Disk, DVD means Digital Versatile Disk and ROM means Read only Memory) uses photo diodes to detect reflecting lights on optic discs and uses a laser to read or write data. Commonly, it uses the same cables as hard drives to connect to the motherboard.
Cable used in HDD or CD/DVD
Integrated Device Electronics (IDE), It is the most widely-used hard drive interface on the market. The fancy name refers to how the IDE technology "integrates" the electronics controller into the drive itself
Serial ATA (ATA means Advanced Technology Attachment) , is a high-speed serial interface in family with Ethernet, USB, FireWire and AMD's Hyper Transport. All these interfaces use a serial technology. They only have two channels: one receiving data and one transmitting them
RAM (RANDOM ACCESS MEMORY): The personal computer memory module also known as Random Access Memory (RAM) is a piece of hardware that allows stored data to be accessed randomly. Its main function is to store the data temporarily.
Common Types of RAM
1. SODIMM - Small Outline Dual Inline Memory Module. This type of memory is used in laptop or mini laptop
2. DIMM (Dual In-line Memory Modules), DIMMs allow the ability to contain twice as much memory on the same size circuit board
Common types of DIMM Memory
Synchronous Dynamic Random Access Memory (SDRAM),is dynamic random access memory (DRAM) that is synchronized with the system bus.SDRAM can run at 133 Mhz, which is much faster than earlier RAM technologies.
Double Data Rate (DDR)-Synchronous Dynamic (DDR-SDRAM) is a class of memory integrated circuits used in computers. The name "double data rate" refers to the fact that a DDR SDRAM with a certain clock frequency achieves nearly twice the bandwidth
POWER SUPPLY the part of the computer system which provides the various voltages needed by the different boards and peripherals that is being connected to the system.
Importance of Power Supply:
Converts the standard household power supply to a form that is usable by the Personal computer (PC).
The power supply supplies power to every component of the PC.
Converts AC to DC.
MOTHERBOARD. This is the central printed circuit board in many modern computers and holds many of the crucial components of the system, providing connectors for other peripherals. The motherboard is sometimes alternatively known as the mainboardorsystem board.
The CPU, or the Central Processing Unit, is the brain of the computer and one of the most important chip in the computer.New CPUs are small and square and contain multiple metallic connectors or pins on the underside. The CPU is inserted directly into a CPU socket, pin side down, on the motherboard.
Two Types of CPU Socket
1. LGA Land Grid Array (LGA). This socket has no holes, but instead pins are located from the CPU socket that makes contact with points on the underside of the CPU.
2. PGA Short for pin grid array, a processor sockets that use a pin grid array (PGA) where pins on the underside of the processor connect to holes in the processor socket.
Hard Disk Drive (HDD) is also known as hard drive. This is the computer's main storage device used to store all data on the computer permanently
CD-ROM/DVD-ROM DRIVE (CD means Compact Disk, DVD means Digital Versatile Disk and ROM means Read only Memory) uses photo diodes to detect reflecting lights on optic discs and uses a laser to read or write data. Commonly, it uses the same cables as hard drives to connect to the motherboard.
Cable used in HDD or CD/DVD
Integrated Device Electronics (IDE), It is the most widely-used hard drive interface on the market. The fancy name refers to how the IDE technology "integrates" the electronics controller into the drive itself
Serial ATA (ATA means Advanced Technology Attachment) , is a high-speed serial interface in family with Ethernet, USB, FireWire and AMD's Hyper Transport. All these interfaces use a serial technology. They only have two channels: one receiving data and one transmitting them
RAM (RANDOM ACCESS MEMORY): The personal computer memory module also known as Random Access Memory (RAM) is a piece of hardware that allows stored data to be accessed randomly. Its main function is to store the data temporarily.
Common Types of RAM
1. SODIMM - Small Outline Dual Inline Memory Module. This type of memory is used in laptop or mini laptop
2. DIMM (Dual In-line Memory Modules), DIMMs allow the ability to contain twice as much memory on the same size circuit board
Common types of DIMM Memory
Synchronous Dynamic Random Access Memory (SDRAM),is dynamic random access memory (DRAM) that is synchronized with the system bus.SDRAM can run at 133 Mhz, which is much faster than earlier RAM technologies.
Double Data Rate (DDR)-Synchronous Dynamic (DDR-SDRAM) is a class of memory integrated circuits used in computers. The name "double data rate" refers to the fact that a DDR SDRAM with a certain clock frequency achieves nearly twice the bandwidth
POWER SUPPLY the part of the computer system which provides the various voltages needed by the different boards and peripherals that is being connected to the system.
Importance of Power Supply:
Converts the standard household power supply to a form that is usable by the Personal computer (PC).
The power supply supplies power to every component of the PC.
Converts AC to DC.