Summary of common knowledge of Windows

Main parameters of 1:CPU/ memory / hard disk:

CPU: main frequency cache memory: capacity main frequency hard disk: capacity speed type

What are the functions of 2:BLOS: self-test initialization program service setting interrupt

3: enter the setting mode of BLOS: press delete / notebook for desktop startup and f2 for notebook startup.

4: shortcut key for switching between host and virtual machine: Ctrl+alt to host / Ctrl+G to virtual machine

5: common operating system: windows / Linux / macOS / Android / dos

6: open hidden files: organize-folder and search options-folder options-View-Advanced Settings-Show hidden files

7: several ways to open the task manager: Ctrl+alt+delete / ctrl+esc / taskmgr.exe

8: system configuration tool Command: MSConfig.exe / Open Service Management tool: services.msc

9: open registry command: regedit two subtrees: hlkey-local-machlne / hlkey-users

10: view and switch directories: pwd / cd / ls / du create directories and files: mkdir / touch

Copy, delete, move files: cp / rm-rf / mv search directory: which / find

11:osi seven-layer model: application layer, presentation layer, session layer, transport layer, network layer, data link layer, physical layer

12:t568a sequence: White Green, Green White Orange, Blue White Blue, Orange White Brown, Brown

T568b line order: White orange, orange white green, blue white blue, green white brown, brown

13: six subsystems of cabling system: work area subsystem, horizontal subsystem, management subsystem, vertical subsystem, building group subsystem, equipment subsystem.

14:Cisco switch configuration mode: user mode, privileged mode, global configuration mode, interface mode

15:ARP address Resolution Protocol ftp File transfer Protocol