Information technology grade11

• hardware is the physical components of a computer
• software is a set of instructions that tell a computer how to carry out a task
• the four main purposes of a motherboard are: to provide physical structure for other components, to provide connection for components, to provide power to the components and send signals between components
• RAM stands for random access memory
• ROM stands for read only memory
• The central processing unit (cpu) is the important component of a computer, it is also known the brain of the computer because it where all the processing of data happens
• The central processing unit (cpu) is the important component of a computer, it is also known the brain of the computer because it where all the processing of data happens
• the cpu's purpose is to process general instructions

  It responsible for collecting data, decoding and executing the instruction
• the GPU process instructions that display pictures or images on your screen
• Basic input output system (BOIS) is the first set of instructions that run every time a computer is started up.
• the BIOS is responsible for ensuring that your computer is started up correctly and that the hardware is ready to use
• The BIOS is stored in the ROM
• VRAM stands for video access memory and is used to store image that is displayed on your screen
• The CPU slot also know as the ZIF socket connects the CPU to the motherboard
• The DIMM slot connects the RAM to the computer motherboard.
• The PCI is used to plug additional components such as the wifi card
• PCI Stands for peripheral component interconnect
• Serial AT Attachment (SATA) is used to connect internal components to the motherboard such as hard drives
• peripheral component interconnect express (PCIe) is also used to connect the GPU to the motherboard
• A motherboard bus is a set of wires that connects on part of the motherboard to communicate with other parts of the mtherboad
• a control bus is used by the CPU send signals to different parts of a computer system to keep the actions of the different parts of the computer coordinated
• a data bus provides a path to transfer data and instructions among different parts of a computer. It is assisted by a address bus which provides the physical address of data in system memory to help with data transfers.
• a power bus provides power to all the components
• What the SATA slot used for

  To connect internal components to the motherboard such ad hard drives
• what does the CPU slot do ?

  connects the CPU to the motherboard
• What does the GPU do?

  Processes instructions that display pictures on your screen
• CPU cache is a small amount of cache that is bult into a CPU that is used to temporarily store a small amount of data it needs
• Disk cache is a small amount of RAM that is bulit into the hard disk drive' it store data being sent of received by the hard disk plates temporarily