1. TSCII (Tamil Script Code for Information Interchange) is the first coding system to handle our Tamil language.
2. This encoding scheme was registered in IANA (Internet Assigned Numbers Authority) a unit of ICANN.
3. This is one of the encoding schemes specially designed for Indian languages including Tamil. It was unified with Unicode.
4. Unicode is an encoding system, designed to handle various world languages, including Tamil. Its first version 1.0.0 was introduced in October 1991. Unicode is the best suitable to handle Tamil.
5. Computers use ASCll encoding system to handle data and information. because computers handle data and information as binary system. But ASCII encoding system is applicable only for handling English language. So TSCII (Tamil Script Code for Information Interchange) came in demand.

(i) CC: CC means carbon copy. The CC field in an email allows the sender to send a "carbon copy" of the email to someone apart from the recipient in the 'To:' field of the email. The CC field in email lets you keep recipients in the loop.
(ii) BCC: BCC stands for Blind Carbon Copy. Just like how CC works in an email, BCC is used to send a carbon copy of the email to someone. When you CC an email to someone, the recipients in both the To field and the CC field are able to see the email addresses of each other.

(i) Network is a broad term similar to system. Network is a communication system which supports many users. In relation with the computers, we can say that a "computer network" is a system which allows communication among computers connected in the network.
(ii) A computer network is the interconnection of two or more computers. It is done to enable the computers to communicate and share the available resources.

(i) Slide Master is a slideshow slide template that determines the style, textures, theme, fonts, and background to be used on the slides. Slide Master can be used to adjust the presentation of all display slides at the same time.
(ii) A screen leader is the highest slide in a slider ladder that stores details about a presentation's theme and slide designs, including the setting, texture, fonts, effects, placeholder sizes, and placement. Find the master slide with a mouse, then select Master Layout from the Slide Master tab.

Layout helps the user to arrange the data, images in proper way so that presentation suits the requirements.

A margin is the space between the text and the edge of your document.
To format the margin of the paper as 1" in all sides, one need to follow the given steps:
1. Go to Format $\rightarrow$ Page in the menu bar.
2. Choose Page Tab.
3.Choose Page margin from the dialog box where Left, Right, Top and Bottom margin is to be set as 1".
4. Click OK.
Page margin is available in the Page tab of the Format tab of Menu bar.

(i) Relative cell addressing
(ii) Absolute cell addressing

(i) The Open source software is free to use, distribute, and modify.
(ii) It has lower cost in most cases in only the fraction of the cost of their proprietary counter parts.
(iii) It is most secured as the code is accessable to everyone.

The Operating System provides three levels of securities to the user end. They are
(i) File access level
(ii) System level
(iii) Network level.

High-Definition Multimedia Interface is an audio/ video interface which transfers the uncompressed video and audio data from a video controller, to a compatible computer monitor, LCD projector, digital television etc.

(28)₁₀ is positive number. 1’s Complement represent signed numbers (Negative numbers) only. So, (28)₁₀ cannot find 1’s complement.

Click add in the spelling dialog box and pick the dictionary to add a name to the dictionary.

To merge a group of cells:
(i) Select the cells to merge.
(ii) Click Table ⟶ Merge Cells or click merge cells icon or Right Click ⟶ Cell ⟶ Merge,
(iii) The selected cells will be merged into a single cell.
To split a single cell:
(i) Place the insertion point inside the cell.
(ii) Click Table ⟶ Split Cells or click split cells icon or Right click ⟶ Cell ⟶ Split, the split cells dialog box appears 3. Select the number of cells to split using spin arrows or enter the value directly.
(iii) Select the direction of the split, horizontally (for rows), or vertically (for columns).
(iv) A single cell is split into the desired number of rows and columns.

Corrections can be made in two different ways :
(i) Backspace Key: Deletes the character left of the insertion pointer.
(ii) Delete Key: Deletes the character right of the insertion pointer.