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Computer Fundamentals

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Application of Computer Graphics

Application of Computer Graphics

Application of Computer Graphics Computer graphics is and a concept of presenting the thoughts, ideas and information in the form of pictures. With use of graphics system in computer technology the age of computer has reached on its top level. Computers these days have become a powerful tool for the …

Issuing out a book from a library-Context Diagram DFD

Issuing out a book from a library – Data Flow Diagram – Example

 Issuing out a book from a library Explanation: This system need to accept student information as input. Student information may contain student name, roll number, registration number and so on. The best can be roll number that is usually not repeated (although registration number is not repeated, for now I …

Leveled DFD for Record and Pay Invoices process

Advantages and Disadvantages of the DFD

Advantages of the Data Flow Diagram System analyst in some extent, argue Data Flow Diagrams as this procedure takes long time of modeling. But what’s the alternative? The DFD offers the analyst with several distinct advantages. Some of them are shown there in list: Most fundamentally, it depicts flow and …

Physical Data Flow Diagram for cashing cheque

Difference between Physical and Logical Data Flow Diagrams

Difference between Logical DFD and Physical DFD So far we considered data flow diagrams as logical models. They specify the logical process …

Leveled DFD for Record and Pay Invoices process

How do we begin to construct Data Flow Diagrams (DFDs)?

How do we begin to construct Data Flow Diagrams (DFDs)? Hope you have read our previous articles on Concept of Data Flow …

Process are denoted by circles in DFDs

Symbols used in Data Flow Diagrams (DFDs)

Symbols used in Data Flow Diagrams (DFDs) In previous article, we discussed about the concept of Data Flow Diagrams, now it’s time …

DFD - The interfaces required to design and build a system

Concept of Data Flow Diagrams (DFD)

Data Flow Diagrams Concept of Data Flow Diagrams (abbreviated as DFDs) was introduced by De-Marco in 1978 and also by Gane and …

Architecture of SAP-1 Microprocessor/Computer

Architecture of SAP-1 Microprocessor/Computer

Architecture of SAP-1 Microprocessor/Computer SAP (Simple-As-Possible)-1 is the first stage in the evolution toward modern computers.   Architecture Figure shows the architecture/ …

Fourth Gereration Language

This language is also known as 4GL in short. This concept of programming is one step ahead from high-level language which is …

High Level Language

As the generation in programming increased, the structure of the then written programs need to be easily understood, and at the same …

Assembly Language

Assembly programming language is a language closer to what machines can understand. Assembly language is an example of low level language. In …