OGE Informatics study materials
OGE Informatics study resources

OGE Informatics study plan

OGE Informatics · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Programming and algorithm execution & Computer modeling and algorithmization

  • Trace the execution of a given algorithm written in a natural-language or pseudocode form and write down every intermediate variable value

  • Convert a verbal problem statement into a flowchart or pseudocode algorithm with correct branching and looping

  • Hand-execute short programs with loops and conditionals and predict the exact final output

  • Identify the three basic algorithmic structures (sequence, branch, loop) inside a longer algorithm

Your checkpoint

A handwritten solution set of 12 algorithm-tracing problems, each showing a step-by-step variable table and the final output, self-checked against the expected answers

Week 2

Programming and algorithm execution & Computer modeling and algorithmization

  • Write short programs that read input, apply arithmetic and string operations, and print a formatted result

  • Implement loops to accumulate sums, counts, and maxima over a sequence of values

  • Debug deliberately broken programs by locating the logic error and stating the correction in one sentence

  • Compare two algorithms solving the same task and justify which uses fewer operations

Your checkpoint

A file of 8 working programs (with sample input and verified output) plus a short written note on each of 4 debugging fixes

Week 3

Information coding, number systems, and measurement of information

  • Convert integers between binary, octal, decimal, and hexadecimal by hand, showing the division or positional-expansion steps

  • Add and multiply small binary numbers and verify each result in decimal

  • Compute the information size of a message given the alphabet size or per-symbol bit count

  • Convert between bits, bytes, kilobytes, and megabytes in both directions without a calculator

Your checkpoint

A one-page conversion reference sheet you wrote yourself plus 20 solved conversion and information-volume problems with work shown

Week 4

Digital literacy and information technology fundamentals & Information coding, number systems, and measurement of information

  • Classify a set of real-world scenarios by the type of information process involved (storage, transmission, processing, coding)

  • Explain, in writing, the difference between data, information, and knowledge using your own examples

  • Solve mixed coding problems that combine number-base conversion with text or graphic volume estimation

  • Estimate the storage needed for a described text or image file and state all assumptions

Your checkpoint

A timed 45-minute mock quiz of 15 mixed domain-1 and domain-2 items scored and error-logged

Week 5

Computer systems, software, and file organization & Information and communication networks, internet services

  • Describe the function of core hardware components and match each to a described symptom or use case

  • Interpret a full file path and identify the directory, file name, and extension, and classify the file by type

  • Explain how a client request reaches a web server and what a domain name and IP address each do

  • Distinguish LAN from WAN and identify which network service (email, web, file transfer, search) fits a given task

Your checkpoint

A concept map linking hardware, software, and network services, plus 15 solved matching and short-answer items

Week 6

Practical ICT tasks (spreadsheets, text processing, search, databases) & Information security and safe use of ICT

  • Build a spreadsheet that uses formulas, relative and absolute references, and at least two functions to answer a stated question

  • Write and refine search queries using operators and judge which of several results best matches an information need

  • Apply text-processing operations: find and replace, formatting, and extracting a summary from a document

  • Identify three concrete unsafe-ICT scenarios and state the specific protective action for each

Your checkpoint

One finished spreadsheet workbook with source data, formulas, and a short answer cell, plus a written security checklist of 8 rules

Week 7

Practical ICT tasks (spreadsheets, text processing, search, databases) & Digital literacy and information technology fundamentals

  • Design a small relational table structure and write queries or filters that return a specified subset of records

  • Complete a full practical spreadsheet task under time pressure using only allowed functions

  • Explain what a database record and field are and predict the result of a described sort and filter

  • Apply digital-literacy judgment to evaluate the reliability of two conflicting online sources

Your checkpoint

A completed timed practical task (spreadsheet plus database filter) done in 40 minutes and self-graded against a rubric you wrote

Week 8

Programming and algorithm execution & Information coding, number systems, and measurement of information & Information security and safe use of ICT

  • Re-solve every item you previously got wrong and confirm each fix without looking at the old answer

  • Complete two full-length timed mock exams and record the score for each domain

  • State the two highest-error domains and list the specific skills to review in the final days

  • Recite the key formulas for information volume and number-base conversion from memory

Your checkpoint

A final error log with every previously missed item re-solved, plus two scored mock-exam results and a one-page last-week review list

Milestones

Week 2: You can hand-trace any short loop or conditional program and predict its output correctly on 10 of 12 attempts

Week 4: You score at least 70% on the timed mixed domain-1/domain-2 quiz and can do base conversions without a calculator

Week 6: You produce a working spreadsheet with correct absolute references and pass your own 8-rule security checklist

Week 8: Both full mock exams are completed under time with every wrong answer re-solved and logged