1. F5 is used to start a presentation from the beginning.

2. We can see how your slideshow looks in full screen.

3. To start the slide show from the current slide, press Shift+F5.

4. The shortcut key to create a new slide in MS PowerPoint 2010 is Ctrl + M.

Sir Chandrasekhara Venkata Raman, discovered on 28 February 1928, that when a beam of coloured light entered a liquid, a fraction of the light scattered was of a different color, dependent on material property. This radiation effect of molecular scattering of light bears the name of ‘Raman Effect’, from which many applications in photonic communications and spectroscopy evolved. The Raman Effect is the process of scattering light particles by molecules of a medium.

1. A web browser is software used to view websites.

2. When a user requests a web page from a particular website, the browser retrieves its files from the web server and then displays that page on the user's screen.

3. Browsers are used on multiple devices, including desktops, laptops, tablets, and smartphones.

4. Some of the famous internet browsers in the world are – Google Chrome, Microsoft Edge, Microsoft Internet Explorer, Mozilla Firefox, Opera, Apple Safari, and Amazon Silk.

1. Which of the following formulas is a feature in Microsoft Excel that is used to perform calculations on data in a spreadsheet?

2. A formula is a special type of formula used to add, subtract, multiply, and divide numbers, text, and other data.

3. LANPAR, the first electronic spreadsheet on mainframe and time-sharing computers, was developed in the year 1969.

1. The input device is the device that provides data and control signals to the computer.

2. Major examples of input devices -

- Keyboard, Mouse, Scanner, Joystick, Microphone, Magnetic Ink Character Recognition (MICR), Optical Character Reader (OCR), Touchpad, Touch Screen, Webcam.

1. Encryption is the process of encoding data in cryptography.

2. This process transforms the plaintext or original representation of data into ciphertext or alternative representation of the data.

3. Only authorized parties should be able to decipher the ciphertext back into plaintext and access the original data.

4. Encryption in itself does not prevent interference, but it hinders interceptors from deciphering the content.

Geostationary satellites are located exactly above the Earth’s equator and revolves around the Earth in a circular orbit. Their revolving speed and direction (West to East) are exactly same as that of the Earth, which makes it look stationary from the Earth’s surface.

EDUSAT or GSAT-3 is a communications satellite which was launched on 20th September, 2004 by the Indian Space Research Organisation. EDUSAT is the first Indian satellite built exclusively to serve the educational sector. It has revolutionised classroom teaching through IP based technology