Difference between Paging and Segmentation

Characteristics	Paging	Segmentation
Definition	Paging breaks physical memory Into fixed-sized blocks called frames and logical memory into blocks of the same size called pages. When a process is to be  executed, its pages are loaded into any available memory frames from the backing store. The backing store is divided into fixed sized blocks that are of the same size as the memory frames.	Segmentation is the division of computer’s primary memory into segments or sections. In segmentation, a reference to a memory location includes a value that identifies a segment and an offset within that segment.
Length	All pages are divided into equal length.	The size of a memory segment is generally not fixed and may be as small as a single byte.

Tricks to Protect System from Viruses

Here are some simple tricks that you can use to protect your computer system from Viruses

                     1)      Use of Licensed Antivirus

                     2)      Method to install Antivirus.

                     3)      Regular Update of Antivirus

                     4)      Disable Auto Run Option

                     5)      Operating System

                     6)      Never Use any Device without Scanning.

                     7)      Firewall

Use of Licensed Antivirus: Never use trail or Cracked version of any Antivirus Software because many of the features are not available with such antivirus and whenever a Virus attack occurs it simply report you and take no action.

How to Install Antivirus: This is the most important point that most of the people miss to explain that what the correct way to install an Antivirus Software is. Here are the simple rules:

               a)       Always install Antivirus on Freshly installed Operating System Only.