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What happens after pressing the Power button in PCs?

Boot Sequences of the Operating System When we press the power button, If there is proper voltage, a short is created and send a pulse command to PSU (Power supply unit) to give power to all the devices and to send reset signals to the processor(CPU).                                                                                                                                                                                           CPU has the instruction pointer pointing to the reset vector within the system ROM and ...

How to clean iphone, Computer or TV Screen?

Ensure that the computer screen is disconnected from power. Wipe the screen gently with a dry cotton cloth to remove the dust. Avoid using tissue papers, paper towels etc., Prepare or buy a screen cleaning solution.  Screen cleaning solution = 50% of Distilled water (50%) + 50% of Vinegar or Isopropyl alcohol (Either Vinegar or Isopropyl alcohol, don’t use both). Fill the prepared cleaner solution into a spray bottle. Spray a small amount of cleaning solution onto the microfiber cloth or Lint-free cloth(Eye-glass cleaning cloth). Do not spray more solution as the excess moisture will affect the screen’s display performance. Also do not spray the solution directly onto the monitor. Wipe the screen slowly in small circular motions throughout the screen. Avoid scraping the stains but allow the cleaner to dissolve them. Repeat the cleaning process for tough spots. Wipe off the excess moisture with a dry cloth. Allow monitor to get dry before connecting the power cable. ...

How to configure VLAN Trunking?

The below configuration should be done on one side of the trunk link, that is on a trunk port of one switch. SW1# configure terminal SW1# interface gigabit 0/1 SW1# switchport mode dynamic desirable SW1# ^z In the above configuration, SW1 is the switch name. ‘#’ denotes privileged EXEC mode or enable mode. "configure terminal" command: This command is used to enter into Global configuration mode. "interface gigabit0/1" command: To enter into interface configuration mode to configure the switch interface G0/1 as trunk port which is connected to the second switch for trunking. "switchport mode dynamic desirable" command: To make this interface G0/1 to initiate negotiation messages and respond to negotaiation messages to dynamically choose to start trunking. "^z" command: same as "end" command.  Switchport mode  command's Administrative mode options Operational mode is the expected mode after configuring admini...