Introduction to hardware knowledge of the course

System hardware classification description

Classify by hardware use

Home hardware: desktop notebook

Enterprise hardware: server Devic

Classified by hardware performanc

Rack servers: in the Internet Environment (dell IBM Lenovo HP Huawei Wave)

Ordinary rack server (tens of thousands ~ 100000 +)

Minicomputer server (hundreds of thousands ~ 1 million +)

Mainframe servers (millions ~ millions +)

Blade servers: physical space limitation performance requirement

Tower server: home server equipment

Classify by hardware appearance

1U server: U server thickness 1U=4.45cm

2U server:

4U server:

Virtual CVM: Aliyun (leased) https://www.aliyun.com/

2) hardware components of the system

1) CPU (Central processing Unit) brain operation / control

2) the hard disk can store data (permanent storage)

3) the motherboard can connect multiple devices in series

4) memory can store data (temporary storage)

5) the power supply provides power to the equipment

6) Fan heat dissipation

7) the network card can communicate with other host devices.

8) Optical drive installation system

9) Array cards integrate multiple hard drives into one.

10) remote management card remote boot / remote installation system

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