5th Class Computers Science Understanding Windows System Programs and Application Programs

     System Programs and Application Programs

There are basically two types of programs that we use: system programs and application programs. The system programs constitute what we call an operating system.  

    The programs that make up the operating system are:

• Control programs
• Supervisory programs
• Service programs

The control programs control and manage all the hardware and memory resources of the computer. They regulate and time the activities of the CPU and allocate memory space when it is required. They schedule the data to be received or sent through input and output devices. The service programs provide many services to the user. The most common example is the set of programs that let you save files and load them from floppies or CDs and copy, rename, delete files or folders. The Windows operating system has a few application programs associated with it. In the smaller classes, you may have used the one called Notepad for writing text. Examples of other application programs are word processor, spreadsheet and Internet Explorer.  

 System programs have many uses. Some are given below. Select the correct one.

1. They manage hardware and memory resources of the computer.

2. They help to copy, rename and delete files.

3. They help in word processing and painting.

(A) Only 2                                                           

(B) 1 and 2

(C) 1 and 3    

(D) 2 and 3

(E) None of these  

Answer: (B)

Explanation

Correct option:

(B) Only statements 1 and 2 are correct.

Incorrect Options:

(A) Statement 1 is correct but statement 2 is also correct. Therefore, option (A) is incorrect.

(C) Statement 1 is correct but statement 3 is incorrect. Therefore, option (C) is incorrect.

(D) Statement 3 is incorrect whereas statement 2 is correct. Therefore, option (D) is incorrect.

(E) All the given statements are not incorrect. Therefore, option (E) is incorrect.    

 Notepad is an example of________

(A) Control programs

(B) Supervisory programs

(C) Application Programs                             

(D) Service programs

(E) None of these  

Answer: (c)

Explanation

Correct option:

(C) Application Program: Notepad is an example of an application program which is used for typing text.

Incorrect Options:

(A) Control programs: This option is incorrect

(B) Supervisory programs: This option is incorrect

(D) Service programs: This option is incorrect

(E) None of these: This option is invalid