We know that a social network is a network of social interactions and personal relationships. Sometimes it can be known as a virtual community or a profile site. A social network can be identical as a website on the internet that brings people together to talk, to share ideas and interests, or to make new friends. This creates an online community of internet users that eliminates barriers created by time, distance and cultural differences. Members may use the site to interact with friends, family members and colleagues they already know and also members can also develop new personal and professional relationships. When we consider about …show more content…
Fourth generation computers The time period is stated from 1971up to now. Here the microprocessor is used as the basic electronic component. Microprocessor is a silicon chip that includes in the CPU (central processing unit). Object Oriented Programming Language such as Visual Basic, Java are used in the purpose of programming. Keyboard, mouse etc. are used to input and monitor, printers are used as output devices. Graphical user interface was very helpful for users in the 4th generation. Examples for 4th generation computers are IBM, APPLE etc.
Advantages of fourth generation computers
• Very small in size
• Reliability is very high
• Cheaper to buy
• Processing power is very high
• Any type of high level language can be used
• portable
Disadvantages of fourth generation computers
• high technology and advanced knowledge is required
5. Fifth generation