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Law of definite composition states that the elements in a given compound are always combined in the ssame proportion by mass. This law form the basis for the definition of a chemical compound.
For example, oxygen makes up 8/9 of the mass of any sample of pure water, while hydrogen makes up the remaining 1/9 of the mass. formation of water and hydrogen peroxide , carbon dioxide and carbon monoxide are the big examples of law of definite proportion. example Law of Multiple Proportions Problem-Law which states that when elements combine, they do so in the ratio of small whole numbers (assuming they have the same type of chemical bonds).
Two different compounds are formed by the elements carbon and oxygen. The first compound contains 42.9% by mass carbon and 57.1% by mass oxygen. The second compound contains 27.3% by mass carbon and 72.7% by mass oxygen. Show that the data are consistent with the Law of Multiple Proportions.

Motherboard – The motherboard is the main circuit board of a microcomputer. It is also known as the mainboard or system board.
CPU – The CPU is the central electronic chip that determines the processing power of the computer.
Memory – Memory is the part of the computer that temporarily stores applications, documents, and stem operating information.
Bus – A bus is an electronic line that allows 1s and 0s to move from one place to another.
Expansion Slots – Expansions slots appear on the motherboard. They are sockets into which adapters are connected.
Ports and Connectors – A port is a connector located on the motherboard or on a separate adapter.
Bays – A bay is a space inside the computer case where a hard drive, floppy drive or CD-ROM drive sits
Power Supply – A power supply changes normal household electricity into electricity that a computer can use.
Sound Components – A sound card lets a computer play and record high quality sound.
Central Processing Unit (CPU)

Firewire header
Firewire is also known as IEEE 1394. It is

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