The Component of system unit
作者：Chutikan Jaikwang
1. processor (CPU)
1.1. ALU
1.1.1. comparision
1.2. control unit
1.2.1. directs and coordination
1.3. machine cycle
1.3.1. 1.FETCH
1.3.2. 2.DECODE
1.3.3. 3.EXCECUTE
1.3.4. 4.STROE
1.4. Leading of chip
1.4.1. AMD
1.4.2. INTEL
1.5. Saving
1.5.1. Heat sinks
1.5.2. Liquid cooling technology
2. Memory
2.1. volatile
2.1.1. loses its contents when turned off
2.1.1.1. RAM
2.2. Non-volatile
2.2.1. Do not loses its contents when turned off
2.2.1.1. ROM
2.2.1.1.1. permanent
2.2.1.1.2. can erased
2.2.1.1.3. can written and erased
3. port and connectors
3.1. usb port
3.2. bluetooth wrieless port
3.3. ect.
4. Bay
4.1. opening
4.2. can additional equipment
5. System unit
5.1. mother board
5.1.1. computer chip
6. Data Representation
6.1. Analog
6.1.1. signals are continuous
6.2. Digital
6.2.1. signals are two states
6.2.1.1. on
6.2.1.2. off
6.3. Binary system
6.3.1. 8 bits for 1 bytes
6.4. ASCLL code for symbol
7. slots
7.1. with plug and play cards
7.1.1. auto install
7.2. Removeable flash
7.2.1. Mem card
7.2.2. pc card
7.2.3. usb flash drives