Tashkent university of information technologies in english self study subject: jobs in it

Unplug external devices
Why Computers Don't Turn On
A computer may fail to turn on for any number of reasons.
If you're working on a laptop, your problem may be because your laptop has 
been discharged. Plug it in, and try turning it on. If that doesn't work, wait for an 
hour and try again.
For laptops, hold down the power button to force shut down, then turn it back 
on again. Your problem may be an issue with the “sleep mode,” so this method 
will wake it up.
One last thing you could try before calling the professionals is to unplug all 
external devices, like your monitor, printers, or external hard drives.

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Malfunctioning external devices can prevent your computer from booting up. 
So remove that and try one more time.

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MINISTRY OF DEVELOPMENT OF INFORMATION TECHNOLOGIES AND 
COMMUNICATIONS OF THE REPUBLIC OF UZBEKISTAN
TASHKENT UNIVERSITY OF INFORMATION TECHNOLOGIES
IN ENGLISH
SELF STUDY
SUBJECT: EXPLAINING NETWORK AND SYSTEM SECURITY
Performed by: student of group 
073-22 AKHMADJONOV KOZIM
Checked by: ______________________

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Network Security protects your network and data from breaches, intrusions 
and other threats. This is a vast and overarching term that describes hardware 
and software solutions as well as processes or rules and configurations relating to 
network use, accessibility, and overall threat protection.
Network security is defined as the process of creating a strategic defensive 
approach that secures a company's data and its resources across its network. It 
protects the organization against any form of a potential threat or unauthorized 
access. Network security defined. At a foundational level, network security is the 
operation of protecting data, applications, devices, and systems that are 
connected to the network. 
Though network security and cybersecurity overlap in many ways, network 
security is most often defined as a subset of cybersecurity.