System Components

• module contents
• describe the system units
• motherboard components
• processor
• memory
• expansion slots and cards
• Components of the system unit
• motherboard
• processor
• memory
• hard disk
• expansion bus - video cards
• minimum power is 500 watts
• ddr 2   
• ddr 3
• ddr 4
• things in the system unit
• motherboard mad of a processor,memory, ports, chip set,
• storage - hard drive, HDD, SSD
• power supply - 500 watts  
• other storage - DVD
• should have an I5 processor
• 8 gb of memory
• The motherboard - processor socket , expansion slots
• chip set
• drivers are essential
• DCI expansion slot: 32 bit or 64 bit
• System unit : SATA, DATA
• BIOS setup : a program code stored in your computer
• Only reason to update BIOS is to change the boot order of your drives
• NBT your whole operating stick can be operated on a stick
• Processor
• Intel
• Pentium Dual core
• Pentium Quad core
• i3,i5,i7 
• Atom
• AMD
• Nvidia
• ARM
• Qualcomm
• Motorola
• speed in Gb
• don't be carried away with speed
• to compare computers use the bench mark test
• cache capacity - very high speed capacity - L1, L2, L3
• threads - number of things it can do in power