Friday, 28 March 2014

Introduction to computers & computing


A degree holder in Computer Science with specialty in software development, web development or database administration earns a lot as compared to other fields. And the big subjects like Biotechnology, Bioinformatics, Artificial Intelligence are still open and yet to be explored.




Five basic components of computer system

Basic components of a computer systemThe internal architectural design of computers differs from one system model to another. However, the basic organization remains the same for all computer systems. The following five units correspond to the five basic operations performed by all computer systems.

Number Bases

Number BasesThe Hexadecimal number system uses exactly 16 numbers. Base 10 uses the familiar 0 through 9, and bases 2 and 8 use a subset of these numbers. Base 16, however, needs those 10 numbers (0 through 9) and six more. The six additional numbers used in the Hexadecimal number system are represented by letters A through F.

Information Technology definition and examples

what is information technologyOften times, the term IT is applied to computers and computer-based systems. However, the roots of the word technology suggest that it is a “means” to an end”. For example, using a book of matches is a means to creating a fire. The end is fire itself. A bicycle is a means of transportation. The goal of bicycle riding is to reach a destination, and perhaps also to get some needed exercise.

What is RAM memory

what is RAM memoryRAM is volatile memory. It means that its contents are lost when the power is turned off. RAM is read/write memory. CPU can read data from RAM and write data to RAM. It is used to store data and instruction while it is being executed. RAM is also called main memory or primary storage.

What is cache memory

What is cache memoryA Cache (Pronounced as “cash”) is a small and very fast temporary storage memory. It is designed to speed up the transfer of data and instructions. It is located inside or close to the CPU chip.

How to convert decimal numbers to binary numbers

decimal to binary conversionMostly new Computer Science students find it hard to convert Decimal numbers to Binary number system. In this how to article I will show you the easiest method of converting decimal numbers to binary numbers.

Computer Security threats and how to protect your computer

Computer SecurityComputer 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.

what is the internet

The InternetMany people take the internet and the Web as the same thing, but they are not the same. The Internet is the actual physical network which comprises of wires, cables & Satellites. They connect computers across the globe. The Web on the other hand is a multimedia interface to resources and information that we find over the internet.

What is Cyber Crime


What is Cyber CrimeAnother term called “Internet crime” refers to criminal activities for exploiting the internet. These crimes include and is not limited to identity theft, threatening a nation’s security, copyright infringement and child pornography. These crimes have become a threat to individual privacy, where confidential data, individual’s identity or photos and videos etc. is stolen or intercepted by the attacker.

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Top 10 new computer user tips.

Backup important data
A computer or its hard drive can fail at any time and without warning. When it does all your personal documents, letters, pictures, music, video, etc. is lost and in many situations cannot be recovered or costs a lot of money to be recovered. Make sure you have backups of all your important data so it is not lost when the computer fails.