Huawei p30 pro

Huawei P30 Pro

 Huawei had launched p3 pro.  Its camera feature is very fantastic and its network speed is also awesome. So today in this blog we are going to show you detailed information about Huawei's newly launched phone. 

Introduction:

             Along with time, Huawei is doing its best to introduce different smartphones with special features and a fantastic camera result. To give you a piece of detailed information I am giving you a link of a website click on it and see the full information about this smartphone without any problem:

https://www.gsmarena.com/huawei_p30_pro-review-1910.php

and here I am giving you a link of a video:

https://www.youtube.com/watch?v=5CwDb6YD3sQ

After this, you can make a decision to buy this phone or not.

computer networks

Computer Networks

What is a Computer Network?

                             

                                   A computer network is a connection of one or more computers located in the same room, buildings or at different places. For easy working. 

How Computer Network is helpful?

                                       

                                 In a computer network, computers or other devices are connected with each other, So, the user can share the information, data and peripheral devices, etc

Where computer networks are mostly used:

                                 

                                 The computer networks are mostly used in Offices, Hospitals, large Restaurants, Universities, and Hospitals, etc.

Types of Computer Networks:

           

                      There are three types of Computer Networks:

1. Local Area Network (LAN)
2. Metropolitan Area Network (MAN)
3. Wide Area Network ( WAN)

LAN:

      The full form of LAN is ( Local Area Network). This network is mostly used in small areas like schools, apartments, etc. In this network, Computers are connected with each other. A local Area Network is usually owned by one organization.

MAN:

       The full form of MAN is ( Metropolitan Area Network). A MAN is usually formed by the connection of different LANs. The MAN is larger than LAN. The MAN is usually used in the metropolitan area network.

WAN:

       The full form of WAN is( Wide Area Network). It connects different small networks to form a LAN. It is usually used privately. It is very difficult to maintain the WAN.

Computer Security Threats

Computer Security Threats

         Computer systems are vulnerable to many threats. These threats may cause to stop the computer to work fast, harming stored data and information, erase data from the hard disk, and removing some programs which are installed on the computer. So, today in this blog Knowledge of Andromeda is going to give you information about different computer security threats and their indications and symptoms.

Types of  Threats:

         There are different types of computer security threats that can harm the computer. Some of them are:

• Viruses
• Worm 
• Adware
• Hackers

 Viruses:

                  Computer viruses are malicious programs. They are the most common computer security threats. A computer virus is a program written intentionally to alter the way a computer operates.

This virus comes in the computer by attaching copies of its to the file and program files, document, etc So, that the user clicks on them and the virus activates. These viruses may cause harm stored data and information, unusual error messages appear, erase data from the hard disk and other problems may occur in the computer system.

Worms:

              

Worms are malicious programs that are spread through networks from one device to another without the user's knowledge. Worms can also spread by copying themselves from disk to disk or by email. It may cause to stop some programs, slow down the computer, and destroy files in the system.

Types of computer worms:

SQL slammer

The Blaster worm

Sesser worm

IRC worms

Email worms

Adware:
                                                             

                    Adware is another malicious software that automatically installs on the computer. It automatically plays, displays, and downloads advertisements usually without users' knowledge. These advertisements may be in the form of pop-ups. This software installs other malicious software on the computer. They record user's behavior on the Internet displays ads etc.

Hackers:

            Hacking can be defined as the unauthorized use of the computer, network, and recourses. People who indulge themselves in this process are called hackers.

Hacker Steals:

• Client and customer information 
• E-mail addresses use for spamming
• Passwords etc

Indications when viruses enter in computers:

• Computer restarts on its own.
• Unusual error messages appear.
• The computer locks up and stops responding.
• Unexpected icons appear on the desktop.
• The computer runs slower than usual.
• Antivirus software is disabled or does not run.