Ukraine 11 клас Informatics

Chapters: 11

1. Elective: graphic design (35 h)

Design and visual communication · Raster and vector graphics · Branding and print design

Graphic Design – Graphic design is planning pictures, words and shapes so that a message is clear, useful and attractive. Designers use elements (line, shape, colour, type, image, space) and principles (alignment and grid, hierarchy, contrast, proximity, repetition, balance and white space). They follow a process: brief, research, ideas, sketches, digital drafts, feedback and final artwork. Graphic design is used in posters, logos, book covers, packaging, signs, websites and apps.
Raster Graphics – A raster picture is a grid of tiny coloured squares called pixels. Each pixel stores three numbers (R, G, B) from 0 to 255. Editing means changing those numbers: retouching, layers and masks, filters and colour correction. Vector graphics use shapes and maths instead. AI image tools also make raster pictures, so we must use them honestly.
Desktop Publishing – Desktop publishing (DTP) means using a computer to arrange text, pictures and graphics on a page so that a document looks clear and professional. You set margins and columns, place text and picture frames, choose fonts and colours, and then export a file for print (CMYK, bleed, crop marks) or for a screen (e-book).

Raster and vector animation

Animation: How Still Pictures Start to Move – Animation is a row of still pictures (frames) shown quickly one after another. The eye and brain join them, so we see motion. Frame rate (fps) says how many frames are shown each second: more fps = smoother motion. Key frames hold the main poses; in-betweens fill the gaps (tweening). Main types: hand-drawn (frame by frame), stop motion (paper cut-outs, clay), 2D computer, 3D computer. Raster animation stores pixels; vector animation stores shapes as maths, so it scales without blur.

3D modelling and rendering

3D Modelling: From a Cube to a Printed Object – A 3D model is a shape stored in a computer as points (vertices) joined by edges into flat faces: a mesh. We build models by starting from simple shapes (primitives), moving, rotating and scaling them, and pulling faces out (extrude). Then we add materials and lights and the computer renders a picture. The same model can be sliced into thin layers and built by a 3D printer, or used in games, films, VR and product design.

Number systems and data representation · Logic and information theory

Number Systems and Encoding – A number system is a way to write numbers using a set of digits and a base. Decimal (base 10) uses 0–9, binary (base 2) uses 0 and 1, octal (base 8) uses 0–7, and hexadecimal (base 16) uses 0–9 and A–F. To go from decimal to any base, divide repeatedly by the base and read remainders bottom to top; for fractions, multiply by the base and read the integer parts top to bottom. To go to decimal, multiply each digit by its place value and add. Binary ↔ octal uses groups of 3 bits, binary ↔ hex groups of 4. Text is stored with encoding schemes: ASCII (7-bit, 128 characters), ISCII (8-bit, Indian scripts) and Unicode (every script), stored as UTF-8 (1–4 bytes) or UTF-32 (4 bytes).
Boolean Logic – Boolean logic works with only two values: 1 (true) and 0 (false). Logic gates act on them: NOT flips a value; AND gives 1 only if all inputs are 1; OR gives 1 if any input is 1; NAND and NOR are the opposites of AND and OR; XOR gives 1 when inputs differ. A truth table lists the output for every input combination (2ⁿ rows for n inputs). De Morgan's laws: (A·B)' = A' + B' and (A + B)' = A'·B'. Gates joined together form logic circuits that match Boolean expressions.

Threats and protection

Cybersecurity: Threats and How We Stop Them – Cybersecurity protects computers, networks and data. It aims for confidentiality, integrity and availability (the CIA triad). Common threats are malware, phishing and social engineering, brute-force password attacks and denial of service. Defences include strong authentication, encryption, firewalls, anti-malware software, updates, access control and backups.

Web development

Web Development: How HTML, CSS and JavaScript Build a Web Page – A web page is a set of text files. The browser (client) asks a server for them using a URL and HTTP. HTML gives the page its structure: headings, paragraphs, links, images, lists, tables and forms. CSS gives style: colours, fonts, spacing and layout. JavaScript gives behaviour: it reacts to clicks and changes the page. Responsive design makes one page fit both phones and computers. Good pages are also accessible, fast and safe.

Documents and e-document flow

Electronic Documents and E-Document Flow – A document is a record of facts with a title, number, date, text, signature and stamp. A template keeps documents uniform. Scanners, computers, printers and cloud storage move a document between paper and files. An electronic signature uses a private key to sign and a public key to check, so any change is caught. OCR turns a picture of text into editable text. Keep 3 copies on 2 kinds of storage with 1 away from home, and use passwords, access rights and encryption.

Database design and SQL

SQL with MySQL: Create Tables, Change Rows and Ask Questions – SQL (Structured Query Language) is the language used to talk to a relational DBMS like MySQL. DDL commands (CREATE, ALTER, DROP) define tables; DML commands (INSERT, UPDATE, DELETE) change rows; DQL (SELECT) reads data. Each column has a data type such as INT, FLOAT, CHAR, VARCHAR or DATE. SELECT … WHERE filters rows using relational operators, BETWEEN, AND/OR/NOT and IS NULL.

Concepts, statements and laws · Reasoning and argument

Logic: How Good Arguments Work – Logic studies good reasoning. An argument has premises (reasons) and a conclusion; inference is the step between them. In a deductive argument, if the premises are true the conclusion must be true; such an argument is valid, and it is sound if the premises really are true. One counterexample shows an argument form is invalid. Inductive arguments move from observed cases to a general or likely conclusion; they are strong or weak, never certain. Categorical propositions (A, E, I, O) and simple predicate logic (∀, ∃) help us write arguments precisely and spot fallacies.

Digital audio and MIDI

Music Technology: from Sound to Digital Music – Music technology turns sound into signals and numbers we can record, edit and share. A microphone changes air vibrations into a voltage; an audio interface samples it many thousands of times a second (sample rate) and stores each sample as a number (bit depth). A DAW arranges audio and MIDI tracks, and mixing sets each track's level, pan and effects before the music reaches speakers, films, games or streaming.

Creative coding

Creative Coding: Making Art with Programs – Creative coding means writing programs to make pictures, animation, sound or interactive art. You draw on a canvas with x and y coordinates, where (0, 0) is the top-left corner and y grows downwards. Colours are three numbers (red, green, blue). Loops repeat shapes into patterns, random numbers make every run different (generative art), recursion draws fractals, and events such as a mouse click or a sensor reading let the viewer change the work. Tools like p5.js, Processing, Scratch and Python turtle are made for this.