OPERATING SYSTEM SOFTWARE WINDOWS 7

Q.1 Tick the correct answer.

1. ___________ acts as an interface between the user and the hardware.

(a) Operating System

(b)Central Processing Unit

(c)Kernel

(d)Control Unit

2. __________ is the heart of an Operating System.

(a) Kernel

(b) Shell

(d) DOS

3.___________ is the property of Multitasking Operating System.

(a) Resource sharing among multiple users

(b) Multiple Processorors

(d)Quickly respond to user's request

4. ____________ is a Linux based mobile operating system developed by Google.

(a) Blackberry

(b)Android

(c)iPhone

(d)Windows

5.The first version of the Windows Operating System named Windows 95 was released in ____________

(a) 1980

(b) 1991

(d) 1992

6. A window called __________ is used to view and manage the document, music, picture and other files in the various folders across the different storage devices in the computer system,

(a)File Explorer

(b)Personalisation

(c) Windows Explorer

(d) Windows Component

7. In _________ View, we can see the files or subfolder arranged in a tabular grid.

(a) Details

(b) Tiles

(c) List

(d)Grid

8.__________ can be used to quickly view the desktop by making all the opened windows transparent.

(a) Aero Flip

(b) Aero Shake

(c) Aero Peek

(d) Snap

Q.2 Write True and False for a Statement.

1. Linux is an example of the multi-user operating system software . True

2. Taskbar is one of the Windows components placed at the bottom of the screen which can be repositioned if needed. True

3.A deleted file or folder can be restored back using Recycle Bin. True

4. A special purpose file system is used to manage files other than those stored on hard disk or network storage. False

5. A database file system is used to manage files stored on a hard disk. False

Q.3 Fill in the blanks.

1.During the process of booting operating system is loaded from storage device to RAM/ main memory.

2.Window 7 is an example of Operating system.

3.A long horizontal bar which appears by default at the bottom of monitor screen is known as taskbar.

4. A small jumping arrow at the bottom left corner of an icon represents a Shortcut icon.

5.Window Explore is used to manage the files and folders, stored across the various drives.

6. Start button acts like a main gateway to all the programs, files, folders, system settings, etc. related to Windows.

7. The file or folder deleted by us moves to the Recycle bin.

8.In Sleep mode, you can retrieve your work by moving the mouse pointer or by pressing Enter key on the keyboard.

1. Given the school result data, analyses the performance of the students on #different parameters, e.g subject wise or class wise.

1. Given the school result data, analyses the performance of the students on #different parameters, e.g subject wise or class wise. Solution :- # x-axis is shows the subject and y -axis # shows the markers in each subject # import pandas and matplotlib import pandas as pd import matplotlib.pyplot as plt # Simple Line Chart with setting of Label of X and Y axis, # title for chart line and color of line subject = ['Physic','Chemistry','Mathematics', 'Biology','Computer'] marks =[80,75,70,78,82] # To draw line in red colour plt.plot(subject,marks,'r',marker ='*') # To Write Title of the Line Chart plt.title('Marks Scored') # To Put Label At Y Axis plt.xlabel('SUBJECT') # To Put Label At X Axis plt.ylabel('MARKS') plt.show() Output :-

Class 10th Chapter 7 Functions in Calc

Functions in Calc Calc provide built-in standard functions for mathematical, logical, statistical, date and time, financial and other calculations on numbers and text. The process of inserting a function is similar for all functions.That is, to use a function we need to enter a correct spelling of the function along with necessary arguments. This is known as syntax of the functions. t is possible to loose the grip on it and easy to introduce errors. To avoid this, you may take help of function wizard. The Calc support some more functions that support logical decision making. These functions are AND, OR, and NOT. (1) In which of the following ways we can enter a function in Calc ? (a) Directly typing function name in a cell nan (b) Function wizard or selecting from tool bar (c) A and B both (d) Depends on functions (2) A function can start with which of the following options ? (a) '='sign (b) Alphabets (c) Numbers (d) Any of these (3) Which of the following is not a logical...

11. Write a Java program to input basic salary of an employee and calculate its Gross salary according to following:

11. Write a Java program to input basic salary of an employee and calculate its Gross salary according to following: Basic Salary <= 10000 : HRA = 20%, DA = 80% Basic Salary <= 20000 : HRA = 25%, DA = 90% Basic Salary > 20000 : HRA = 30%, DA = 95% Static Solution :- class salary { public static void main(String args[]) { double basic=20000.50,gross,da,hra; if(basic <=10000) { da = basic * 0.8; hra = basic *0.2; } else if(basic <=20000) { da = basic * 0.9; hra = basic *0.25; } else { da = basic * 0.95; ...

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