The Components Of the System Unit
by Zedrixz Zzz
1. Drive bay(s)
2. Sound card
3. Memory
3.1. The operating system and other system software
3.2. Application programs
3.3. Data being processed and the resulting information
3.4. Types of memory
3.4.1. Volatile memory
3.4.1.1. RAM
3.4.2. Nonvolatile memory
3.4.2.1. ROM, flash memory, and CMOS
3.4.2.1.1. Flash memory can be erased electronically and rewritten
3.4.2.1.2. CMOS technology provides high speeds and consumes little power
3.5. RAM chips
3.5.1. Dynamic RAM (DRAM)
3.5.1.1. SDRAM
3.5.1.2. DDR SDRAM
3.5.1.3. DDR2
3.5.1.4. DDR3
3.5.1.5. RDRAM
3.5.2. Static RAM (SRAM)
3.5.3. Magnetoresistive RAM (MRAM)
3.6. Memory cache
3.6.1. L1 Cache
3.6.2. L2 Cache
3.6.3. L3 Cache
3.7. Removable flash memory
3.7.1. Memory cards, USB flash drives, and PC Cards/ExpressCard modules
3.8. Access time
3.8.1. Access time is the amount of time it takes the processor to read from memory
4. Main Circuit : Motherboard
4.1. Chip
5. Expansion Slots
5.1. Sound card and video card
6. Adapter Cards
7. Power supply
7.1. The power supply converts the wall outlet AC power into DC power
7.2. Some external peripherals have an AC adapter, which is an external power supply
8. Video card
9. Processor
9.1. Core Type
9.1.1. Multi-core processor
9.1.2. Dual-core processor
9.1.3. Quad-core processor
9.2. Additional cooling
9.2.1. Heat sinks
9.2.2. Liquid cooling technology