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Can you explain what inheritance is and an example of when you might use it?
The process of deriving a new class from an existing class is known as Inheritance. The old class is known as the base class and the new class is called derived class. The derived class inherits some or everything of the base class. In Visual Basic we use the Inherits keyword to inherit single class from other.
Ex:
Public Class Base
---
End Class
Public Class Derived
Inherits Base
What is Assembler A macro-assembler or assembler normally forms a part of operating system. That translates an assembly language program into machine language program.
Does the minimum spanning tree of a graph give the shortest distance between any 2 specified nodes? No. The Minimal spanning tree makes sure that the total weight of the tree i
What is mother board? Mother Board is a main system printed circuit board which having the processor. It will occupy an unacceptably large amount of space on the board.
The success of a system relies on the approach of building it. If development approach is right then system will work successfully. Figure below portrays a System Development Life
Q. Explain about data registers? The data registers are used just for storing intermediate results or data and not for operand address calculation. Some dedicated address re
Q. Show the Dynamic Range and Colour Depth? Dynamic Range is the number of colours a colour scan or number of grays a monochrome scanner can distinguish. The dynamic range is t
Explain what is DTMF signalling. Dual Tone Multi Frequency (DTMF) was initially introduced in 1963 with 10 buttons into Western Electric 1500 -type telephones. Dual Tone Multi
Q. Why we need number systems? Number system is used to signify information in quantitative form. Some of the general number systems are octal, decimal, hexadecimal and binary.
What are the advantages and disadvantages of a Smart Card? Advantages of Smart Card: 1. It gives convenience & support for multiple currencies over borders. 2. Used
Typewriters with special attachments Certain special attachments can be used to the typewriter for typing work of a special nature. These are: The continuous stationery dev
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