Code for Computer Science

 Basic Output Primitives are:  - Point Positions [ pixel ].  - Lines   - Line Drawing Algorithm  - Circle and Ellipse generating algorithms  - Pixel addressing and object geometry  - Filled area primitives  1.) Point or pixel Point/Pixel means smallest element of Picture. A Point contain location using x and y coordinates. Size of pixel = size of pixel on display monitor. Point Attributes: Size and Color. 2 points represent Line/Edge.  2.) Line function Line function is used to generate straight lines between any two points. Line Function Provide Straight Line with the location of 2 pixel points. line representation Set of pixels between 2 end points. Line attributes: Color, Thickness and type.  3.)  Line drawing algorithm Line Generation = Process of turning on pixels for a line segments. Line drawing algorithms is required when computer needs to determine positions of pixel between 2 end points [ to generate a straight line].   Requirements of Line drawing Algorithm  - Line should ap

Topics Covered:  Role of Cryptography in Information Security. 1.) What is Cryptanalysis? Cryptanalysis is a technique decoding messages from a non-readable format back to a readable format. 2.) What is Plain text? Plain text means Clear text/ Original Message. Plain Text can be understood by anybody knowing the language. For Example Communication Language used here: English and Message: Hello Everyone  Plain Text = Clear Text [the message that can be understood by both sender and receiver and also by anyone else who gets access to that message]. 3.) What is the Cipher Text? Ciphertext means Codified Message / Encrypted Message / Unreadable Message. When Plain Text is Encrypted, the resulting message is Cipher Text. 4.) What is Encryption?  The Process of Converting from Plain text to Cipher Text. Also known as Enciphering.  5.) What is Decryption? The Process of restoring the Plain text from Cipher Text. Also known as Deciphering.  6.) Elements of a Cryptographic operation .  7.) Subs