Answer:
Computers differ based on their data processing abilities. They are classified according to purpose, data handling and functionality.Computers can be classified, or typed, in many ways. Some common classifications of digital computers are summarized below.
Microcomputers (personal computers).
Minicomputers (midrange computers).
Mainframe computers.
Supercomputers
Microcomputers became the most common type of computer in the late 20th century
Answer:
Your “digital footprint” includes all traces of your online activity, including your comments on news articles, posts on social media, and records of your online purchases. When you know the boundaries of your digital footprint and take steps to contain it, you can help protect your identity and your reputation.
Explanation:
Statement A is true, that is computers are used in all digital technologies.
Explanation:
- Among the given statement the most appropriate statement to choose the computer as the most visible and pervasive product of the digital age is that computers are used in all digital technologies now.
- And other statement are false or not valid as computers are not only used in United states
- Computer is not the only form of communication.
- And computers are not the only technological devices that we use now.
First language : JAVA
Second Language : C++
Major Difference :
1. Platform Dependency :
Java is platform independent which means that its code can be run on any machine. It uses JVM ( Java virtual machine ) which converts the code in byte form and then run it which makes it flexible enough to be used on any system. So .exe file can run on any OS.
C++ is not platform independent and thus its .exe file cannot be run on different OS.
2. Objects
In JAVA everything is reference typed and is inherited from the class objects that are predefined in it.
In C++ not everything is class or reference typed.
3. Garbage Collector
Java has built in garbage collector when we use classes in java.
C++ make developer to collect garbage when he uses reference types like pointers.
Why choose Java and C++ ?
People are very confused about the platform in-dependency of JAVA, so i decided to choose Java and compared that concept with c++ which is mother of all languages.
I would say it is considered as science and a bit of maths as its the 'study of abstract machines and automata'
