What is computer viruse?
computer virus, much like a flu virus, is designing to spread from host to host and has the ability to replicate itself. Similarly, in the same way that flu viruses cannot reproduce without a host cell, computer viruses cannot reproduce and spread without programming such as a file or document.

What is SEO?

Search engine optimization (SEO) is the process of growing the quality and quantity of website traffic by increasing the visibility of a website or a web page to users of a web search.SEO refers to the improvement of unpaid results (known as "natural" or "organic" results) . 

What is block chain?
Blockchain is a distributed database existing on multiple computers at the same time. It is constantly growing as new sets of recordings, or 'blocks', are added to it. Each block contains a timestamp and a link to the previous block, so they actually form a chain.

What Is Digital Marketing?

Digital marketing is the use of the Internet, mobile devices, social media, search engines, and other channels to reach consumers. Some markets experts consider digital marketing to be an entirely new endeavor that requires a new way of approaching customers and new ways of understanding how customers behave compared to traditional.

Content Writing:
Content writing is the process of planning, writing and editing web content, typically for digital marketing purposes. It can include writing blog posts and articles, scripts for videos and podcasts, as well as content for specific platforms, such as tweetstorms on Twitter or text posts.