First Generation1946-1959. Vacuum tube based.
Second generation1959-1965. Transistor based
Third Generation 1965-1971. Integrated Circuit based
Fourth Generation 1971-1980. VLSI microprocessor based
Fifth Generation 1980-onwards. ULSI microprocessor based
Mainframe are made and used till today mainly large companies like IBM
Super Computers belong to 5th Generation Computers
If you are using Android you just need to learn how to programme in Android Studio. Creating a high Graphic Processing application may be very hard but once you know how to code it'll be easy. You can use MIT university's software- App Inventor(If you think Android Studio is hard :P) And if your using iOS (i.e. iPhone or iPad) you'll need to learn 'Objective C' or 'Swift', there is no 'easy' way to make apps in iOS.
Using HTML is okay but nowadays, people don't use it anymore. Adobe Muse is software used for making websites, the best thing is, that you don't need you don't need to write even a single line of code.
You need to learn HTML for that (and CSS if you want to decorate your website). But there are services available online to make blogs like Wordpress.com (Not Wordpress.org for that you need to learn the above languages.), Blogger etc.
You can use Android Studio (or Eclipse) but you need to learn Java (or C or C++).
But Java, C, C++, etc. are very hard to learn so you can use Android App Inventor (ai2.appinventor.mit.edu/
) which is easier than Android Studio. (Just to know- Android Studio has more capabilities) Prajwal