Antivirus of computer

History of Antivirus
       Most of the computer viruses written in the early mid-1980's were limited to self reproduction and had no specific damage routine built into the code.
Rootkits detection:
    Antivirus software can attempt to scan for rootkits;a rootkit is a type of malware that is designed to gain administrative a level control over a computer system without being detected.
Real time protection:
        Real time protection on access scanning,background guard,auto protect etc.., in other words while date loaded into the computer's active memory. when insetting CD,opening an email(or)when a file already on the computer is opened or executed.
Rogue security application:
       Some apparent antivirus programs are actually malware masquerading as legitimate software such as Winfixer,MS Antivirus,and MAC Defender.
Effectiveness:
        Students in December 2007 showed that the effectiveness of antivirus software had decreased in the previous year,particularly against unknown or zero day attacks.
New viruses:
     Ransomware,Polymorphic code to avoid detection by virus scanners.

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History of computer and relative topics

COMPUTER:
       * Artificial Intelligent machine.
        * It's electric device.
        *It's storage device.
        *It's program device.
        *It reduce the human workload.
           GENERATION OF COMPUTER:
Gen-1=Vaccum Tube
Gen-2=Transistor
Gen-3=IC
Gen-4=Microprocessor
Gen-5=AI
What is operating system?
          An operating system is a set of software that manages computer hardware resource and provided common service for computer program.
Character user Interface(CUI):
*Windows 1.0
*Windows 2.0
*Windows 3.0
*Windows NT
*Windows 95
*Windows 98
Graphical user Interface(GUI):
*Windows ME
*Windows XP(2001)
*Windows Vista(2007)
*Windows 7(2009)
*Windows 8(2012)
*Windows 8.1(2014)
Version of Unix:
      *BSD
     *SVR 4
     *SUB
    *POSIX
    *Solaries
Smallest os:
   *puppy linuse 256MB.
  *They are 128 distributor.

        

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10 best TIPS for your succeed interviews and group Discussions

10 best tips for your interview contents:
1.preface cum introduction...
2.6channels for job hunting...
3.15keys for good resume writing...
4.Network to get work...
5.'Do's and 'Don't' during the interview...
6.The first ball in the game of interview...
7.Your body language...
8.Logistics...
9.Preparations much in advance...
10.Your communication Skills...
            Relative topics for more details step by step information......
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Apple has increased prices of iPhones in India.

           apple has increased prices of iPhones in India. The surprise                revision in retail prices comes at a time when the company's                new device SE got a poor response and managed to sell only a            few thousand units. And, the hike is as steep as 29% for the           iPhone 6 device.

     Sources said Apple decided to withdraw some of the discounts        offered in January-March 2016 period. "It was felt that SE,                which was criticized for having a 'high price tag', will not be able      to see much traction if prices of bigger-sized iPhone 6 and 6S               devices are not corrected. So, the decision was taken to revise             the price upwards," a source said.

          While 16GB version of 4-inch iPhone SE made its debut at Rs 39,000, a similar specked (16GB) version of iPhone 6 is available at Rs 31,000 and 6S at Rs 40,500. "After the revision, iPhone 6 costs Rs 40,000 and 6S comes for Rs 48,000. We are trying to build a healthy buffer," the source added.

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What is an element?

An element is a `pure substance` consisting of atoms of the same kind. Elements cannot be broken down into simpler substances, but they can combine with other elements to make new substance. Each element  has a unique symbol, for example, `O` means oxygen, `Na` means sodium (Latin: naturium),and `Cl` means chlorine. The number of protons in the atomic nucleus determines the element. The number is called the atomic number of the element. 

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What is an atom?

The term atom from the Greek word atomos , meaning

Indivisible earlier it  was considered that   atoms were the smallest unit of a substance and could not be split further. today, we know that atoms can be further

Split into smaller particles. An atom is made up of the atomic nucleus, which consists of positively charged protons and an equal number of neutrons, and atomic shells. These are occupied by negatively charged electrons, which move at high speeds around the atomic nucleus –like planets around the sun.

(A carbon atom(c). there are twelve particles in the nucleus: six protons and six neutrons. Six electrons move in two shell-like areas around the nucleus the number of protons determines the element.)      

 

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