8th Class Computers Science IT Basics System Software          

   System Software

Software is a computer program which gives the instruction to computer to produce desire output. Basically there are two types of software. They are application software and system software. Application software, such as banking system only takes input by user and generates output. System software, such as compiler, DOS (Disk Operating System), Windows and drivers, is a kind of software that controls the working of hardware and help in execution of a general user's application. System software performs various types of functions, such as storage management, file editing, resource accounting, 1/0 management and database management. System software can be further categorized into three types.  

  They are the following: 

• System Management Software (operating systems, DBMS, operating environments)
• System Development Software (language translators, application generators, CASE tools)
• System Software Utilities  

 Skinware

The outermost parts of the computer are called Skin ware, such as cabinet of CPU. The main difference between hardware and skin ware is that hardware can be an internal or external part of computer while skin ware is only the mounted part. You can directly see the skin ware without opening or removing any other part.  

 Liveware

Live ware is also called human ware. The persons, such as computer programmer, operators and service engineers are directly or indirectly related with the computer are called liveware.  

 Firmware

The combination of hardware and software is called firmware. For example, programs are software and CDs are hardware but program loaded CDs are called firmware.      

 An algorithm is a group of logical instruction that generates the output according to given input. These algorithms are written in Pseudo code.  Pseudo code is an informal description of a computer program that is written in simple ..................

(A) 'C' language                                                

(B) English language

(C) Machine language                                   

(D) Assembly language

(E) None of these  

Answer: (b)

Explanation

Correct Option:

(B) Pseudo code is an informal description of a computer program that is written in simple English.

Incorrect Option:

Rests of the options are invalid  

  Software is a computer program which can be categorized as application software and system software. Which one of the following is an example of system software?

(A) Banking system                                        

(B) MS Word

(C) DOS                                                               

(D) All of these

(E) None of these  

Answer :(C)

Explanation

Correct Option:

(C) DOS is system software.

Incorrect Option:

(A) Banking system is application software.

(B) MS Word is application software.    

 Computer programmer is responsible for developing computer program. Programmer is also called...................

(A) Skinware                                                     

(B) Firmware

(C) Liveware                                      

(D) Analyzer

(E) None of these  

Answer: (c)

Explanation

Correct Option:

(C) The persons, such as computer programmer, are directly or indirectly related with the computer are called liveware

Incorrect Option:

(A) The outermost parts of the computer are called Skinware.

(B) The combination of hardware and software is called firmware.

(D) Rests of the options are invalid.  

• Former Prime Minister of India Mr. Rajiv Gandhi encouraged the use of computer in India.  

• Digital Computer: The digital computer stores data, such as text and picture in the form of numbers and proceed in discrete steps from one state to the next. v
• Super Computer: The storage capacity of super computer is in pixabytes.
• Assembly language: This language is not directly processed by microprocessor.
• Firmware: The combination of hardware and software is called firmware
• Liveware: The persons, such as computer programmer, operators and service engineers are directly or indirectly related with the computer are called liveware.  

• The microprocessor whose all components are on a single integrated, circuit chip
• The ICL39 and IBM 3090/4300 are the examples of mainframe computers.
• The analog computers are very fast. They solved most complex equation so quickly.
• ASCII is a method of character encoding.
• Computer programs are set of instructions that enable a computer to interact with the user, peripherals and information.
• Pseudo code is an informal description of a computer program that is written in simple English.
• The hybrid computers combine the best quantities of both of analog and digital computers.
• ASCII is a seven bit code which includes 128 characters.
• The outermost parts of the computer are called Skin ware, such as cabinet of CPU.
• Liveware is also called humanware.  

  Abbreviations

ASCII             -             American Standard Code for Information Interchange

COBOL          -             Common Business Oriented Language

OOP               -             Object-Oriented Programming