3 Main Types of Encryption

category:  Computer Science Notes Table of Contents 1.What Exactly is Encryption? Why is it Useful? 2.Understanding the Process of Encryption 3.What Are the Different Types of Encryption? 3.1.Symmetric 3.2.Asymmetric 3.3.Hash 4.Why Encryption Matters So Much Moving Forward Understanding the types of encryption is important for data security. In a world where an incomprehensible amount of … Read more

What is a Real-Time Operating System and What Does It Do?

category: Computer Science Notes   Table of Contents 1.What Exactly is a Real-Time Operating System? 2.Where Are Real-Time Operating Systems Used? 3.What Are the Dangers of Slow Response Times? 4.A Field with Its Own Vernacular? 4.1.Determinism 4.2.Soft vs. Hard Real-Time 4.3.Jitter 5.The Future of the RTOS: Can It Influence the Normal OS? What’s the difference … Read more

Four types of computers

Since the advent of the first computer different types and sizes of computers are offering different services. Computers can be as big as occupying a large building and as small as a laptop or a microcontroller in mobile & embedded systems. The four basic types of computers are as under: 1​Supercomputer 2​Mainframe Computer 3​Minicomputer 4​Microcomputer … Read more

Types of computers by purpose

There are two types of computers according to their purpose. General-Purpose Computers Most computers in use today are General-Purpose computers — those built for a great variety of processing jobs. Simply by using a general-purpose computer and different software, various tasks can be accomplished, including writing and editing (word processing), manipulating facts in a database, … Read more

What is a Computer?

category:  Introduction to Computing Table of Contents 1.Meaning of the word “Computer” 2.Definition of Computer 2.1. “A Computer is an electronic machine that can solve different problems, process data, store & retrieve data and perform calculations faster and efficiently than humans”. Meaning of the word “Computer” Computer is derived from a Latin word “computare” which … Read more

What is a Computer virus?

category:  Introduction to Computing Table of Contents 1.Definition of Computer Virus 2.Activation of Virus 3.Damages caused by virus 4.Causes of Computer Virus 4.1.Infected Flash Drives or Disks 4.2.Email Attachments 4.3.Infected / Pornography websites 4.4.Networks 4.5.Pirated Software 5.Types of Computer Virus 5.1.CodeRed   5.2.Nimba 5.3.SirCam 5.4.Melisa 5.5.Ripper 5.6.MDMA 5.7.Concept 5.8.One_Half 6.Protection from Computer Virus “A Computer … Read more

What is Cyber Crime

category:  Introduction to Computing Table of Contents 1.Definition of Cyber Crime 2.What is a Hacker? 3.Types of Cyber Crimes 3.1.Computer Intrusion 3.2.Social Engineering 3.3.Masquerading 3.4.Denial of Service (DOS Attack) 3.5.Smurf Attack 3.6.Fraggle Attach 3.7.Email Bombing 3.8.Logic Bomb 3.9.Salami Attack Before starting our discussion first we must know what “Cyber crime” is and what are the … Read more

what is the internet

category:  Introduction to Computing Table of Contents 1.Uses of the Internet 1.1.Communicating 1.2.Online Shopping 1.3.Searching 1.4.Entertainment 1.5.Education Do you want to communicate with your friends across town or perhaps in another city or country? You would like to share your photos, videos or documents with your friends and colleagues. Perhaps you are searching for research … Read more

Computer Security threats and how to protect your computer

category:  Introduction to Computing Computer is very expensive hardware and it contains vital information and your personal data. It is very important to take good care of your computer to avoid any mishaps. Following steps are essential for Computer Security and to protect your computer and the data against any threats. Keep your computer safe … Read more