Introduction to 4GL

INTRODUCTION TO 4GL

4GL:
Here 4GL is stands for fourth generation language.
Some of the examples are VB, SQL etc.


4GL is a grouping of programming languages which are invented to get closer to human language than 3GLs.

Now the question is how to 4GL is closer to human language?
So we will get answer from SQL query. We have to find out the number of students whose names are Jayesh in a table.

Select * form student where name = ‘Jayesh’;

Its same as humans speaks.

But the question is what is 3GL?
So 3GL is high level languages like JAVA, C++.

Other than 4GL and 3GL there is 1GL,2GL,5GL too.
1GL, include machine language.
2GL, includes assembly language.
5GL, includes neural networks and artificial intelligence.



MCQs on 4GL

Q1. Which of the following 4GLs invented at IBM and subsequently adopted by ANSI and ISO as the standard language for managing structured data?
a) SQL
b) PROLOG
c) C

Q2. Productivity of software engineers is reduced in using a 4GT.
a) True
b) False 

Q3.  4GL is an example of ______________ processing.
a) Black Box
b) Functional
c) Both Black Box & Functional 

Q4.  Identify a fourth generation language(4GL) from the given below.
a) FORTRAN
b) COBOL
c) Unix shell

Q5.  Which 4GL is used for Data manipulation, analysis, and reporting languages
a) Lisp
b) SAS
c) Unix shell
d) MATLAB 

Q6. Which of the following 4GLs is low code/no code development platform
a) FORTRAN
b) New Horizon
c) Progress 

Q7.  4Gl used for mathematical optimization
a) MATLAB
b) Unify Vision
c) Visual DataFlex

Q8. GUI creator 4GL
a) Visual DataFlex
b) LIRC
c) R


MCQs Answers

Q1. (a)
Q2. (b)
Q3. (c)
Q4. (c)
Q5. (b)
Q6. (c)
Q7. (a)
Q8. (a)

Principles of Programming Languages

EasyExamNotes.com covered following topics in PPL.

Practicals:
Previous years solved papers:
A list of Video lectures
References:
  1. Sebesta,”Concept of programming Language”, Pearson Edu 
  2. Louden, “Programming Languages: Principles & Practices” , Cengage Learning 
  3. Tucker, “Programming Languages: Principles and paradigms “, Tata McGraw –Hill. 
  4. E Horowitz, "Programming Languages", 2nd Edition, Addison Wesley

Python Programming ↓ 👆
Java Programming ↓ 👆
JAVA EasyExamNotes.com covered following topics in these notes.
JAVA Programs
Principles of Programming Languages ↓ 👆
Principles of Programming Languages
EasyExamNotes.com covered following topics in these notes.

Practicals:
Previous years solved papers:
A list of Video lectures References:
  1. Sebesta,”Concept of programming Language”, Pearson Edu 
  2. Louden, “Programming Languages: Principles & Practices” , Cengage Learning 
  3. Tucker, “Programming Languages: Principles and paradigms “, Tata McGraw –Hill. 
  4. E Horowitz, "Programming Languages", 2nd Edition, Addison Wesley

    Computer Organization and Architecture ↓ 👆

    Computer Organization and Architecture 

    EasyExamNotes.com covered following topics in these notes.

    1. Structure of desktop computers
    2. Logic gates
    3. Register organization
    4. Bus structure
    5. Addressing modes
    6. Register transfer language
    7. Direct mapping numericals
    8. Register in Assembly Language Programming
    9. Arrays in Assembly Language Programming

    References:

    1. William stalling ,“Computer Architecture and Organization” PHI
    2. Morris Mano , “Computer System Organization ”PHI

    Computer Network ↓ 👆
    Computer Network

    EasyExamNotes.com covered following topics in these notes.
    1. Data Link Layer
    2. Framing
    3. Byte count framing method
    4. Flag bytes with byte stuffing framing method
    5. Flag bits with bit stuffing framing method
    6. Physical layer coding violations framing method
    7. Error control in data link layer
    8. Stop and Wait scheme
    9. Sliding Window Protocol
    10. One bit sliding window protocol
    11. A protocol Using Go-Back-N
    12. Selective repeat protocol
    13. Application layer
    References:
    1. Andrew S. Tanenbaum, David J. Wetherall, “Computer Networks” Pearson Education.
    2. Douglas E Comer, “Internetworking with TCP/IP Principles, Protocols, And Architecture",Pearson Education
    3. KavehPahlavan, Prashant Krishnamurthy, “Networking Fundamentals”, Wiley Publication.
    4. Ying-Dar Lin, Ren-Hung Hwang, Fred Baker, “Computer Networks: An Open Source Approach”, McGraw Hill.