Mnemonics for Economy, Computer and General Awareness: GDP, Banking Terms, Memory Units, Generations and OSI Layers for SSC
Rahul Kumar
SSC Exam Expert & Content Editor
In this note
PDF Notes: Mnemonics for Economy, Computer and General Awareness: GDP, Banking Terms, Memory Units, Generations and OSI Layers for SSC
Premium PDF · one-time payment of ₹5 · instant access
Lists in economy and computer awareness, such as the components of GDP, the factors of production, the units of memory and the layers of the OSI model, are easy to forget. This guide on mnemonics for economy, computer and general awareness for SSC gives memory tricks for the most important of them, with the correct facts, practice questions and FAQs.
The sentences are memory aids and not official.
Economy
| Topic | Facts | Mnemonic |
|---|---|---|
| Components of GDP (expenditure method) | GDP = C + I + G + (X − M): consumption, investment, government spending and net exports | Cats Ignore Green X Marks: C, I, G, X−M |
| Factors of production | Land, Labour, Capital and Organisation (Entrepreneurship) | LLCO: Lots of Lovely Cool Oranges |
| Rewards of the factors | Land → Rent; Labour → Wages; Capital → Interest; Organisation → Profit | Rich Workers Invest Profits: R, W, I, P |
| Sectors of the economy | Primary (agriculture, mining), Secondary (industry), Tertiary (services) | PST: Plants, Steel, Teaching |
| Types of economy | Capitalist, Socialist and Mixed (India) | CSM: Chocolate Shake Mix |
| Instruments of the RBI | CRR, SLR, Repo rate, Reverse repo rate, OMO, Bank rate | Cats Sleep, Rats Run Out Before dawn |
| Types of unemployment | Seasonal, disguised, structural, frictional, cyclical | Some Day Students Find Careers |
| Types of budget deficits | Revenue deficit, fiscal deficit, primary deficit | Red, Fire, Power |
- Primary deficit = fiscal deficit minus interest payments.
- Fiscal deficit = total expenditure minus total receipts excluding borrowing.
- The Indian financial year runs from 1 April to 31 March.
Computer Awareness
| Topic | Facts | Mnemonic |
|---|---|---|
| Units of memory | Bit, byte, KB, MB, GB, TB, PB, EB, ZB, YB | Kind Mothers Give Tasty Pizza, Eggs, Zesty Yoghurt |
| Generations of computers | Vacuum tube, Transistor, Integrated circuit, Microprocessor, Artificial intelligence | Very Tall Indian Men Are |
| OSI model layers (top to bottom) | Application, Presentation, Session, Transport, Network, Data Link, Physical | All People Seem To Need Data Processing |
| OSI model layers (bottom to top) | Physical, Data Link, Network, Transport, Session, Presentation, Application | Please Do Not Throw Sausage Pizza Away |
| Computer cycle | Input, Process, Output, Storage | IPOS: I Put On Shoes |
| Types of networks by size | PAN, LAN, MAN, WAN | People Love Making Websites (small to large) |
| Primary memory | RAM (volatile), ROM (non-volatile), Cache | RAM Runs As Memory: lost when the power goes off |
| Network topologies | Bus, Star, Ring, Mesh, Tree | Big Stars Rule Many Theatres |
General Awareness: Handy Lists
| Topic | Facts | Mnemonic |
|---|---|---|
| Organs of the Government | Legislature, Executive and Judiciary | LEJ: Laws, Execution, Justice |
| Three lists of the Seventh Schedule | Union, State and Concurrent | USC: Union State Concurrent |
| Three armed forces | Army, Navy and Air Force | ANAF: Army, Navy, Air Force |
| Four Vedas | Rig, Sama, Yajur and Atharva | Round Shapes Yield Accuracy |
| Four Varnas | Brahmin, Kshatriya, Vaishya and Shudra | Big Kings Visit Some? |
| Metro of the four metros | Delhi, Mumbai, Kolkata and Chennai | Dear Mom, Kiss Children |
How to Use Mnemonics Well
- Learn the real list first from the table and then use the sentence as a key.
- Use your own sentence to make it personal.
- Write the first letters of the list and the sentence together.
- Revise the mnemonics after one day, one week and one month.
- Use mnemonics for the lists only; the concepts need understanding.
Quick Tips
- Learn the list once, then use the mnemonic as a key.
- Use your own funny sentence.
- Revise the mnemonics at intervals.
- Mnemonics are for lists, not for concepts.
Quick Revision Points
- GDP = C + I + G + (X − M).
- Factors of production: land, labour, capital and organisation.
- Memory units go from bit and byte to KB, MB, GB, TB and PB.
- Generations: vacuum tube, transistor, IC, microprocessor and AI.
- OSI model has 7 layers.
Practice Questions With Answers
- What is the formula of GDP by the expenditure method?
Answer: C + I + G + (X − M) - What are the four factors of production?
Answer: Land, labour, capital and organisation - What is the reward of the factor land?
Answer: Rent - How many layers are there in the OSI model?
Answer: 7 - Which layer of the OSI model is at the bottom?
Answer: Physical layer - What is the generation of computers that used the transistors?
Answer: Second generation - Which unit is bigger: MB or GB?
Answer: GB - What are the three sectors of the economy?
Answer: Primary, secondary and tertiary - What is the full form of IPOS?
Answer: Input, Process, Output, Storage - What is the type of the unemployment seen in agriculture in the off-season?
Answer: Seasonal unemployment
How to Practise This Chapter
Practise 10 questions every day and write the steps on paper. Then attempt timed sets from our practice papers and the previous year papers page. See all topics on the Mnemonics notes page, read the previous topic Mnemonics for Indian Geography, Neighbours and Rivers.
Frequently Asked Questions
What is GDP?
The total value of the goods and services produced in a country in a year.
What are the factors of production?
Land, labour, capital and organisation.
What is the profit earned by the organisation called?
Profit is the reward of the organisation (entrepreneur).
What are the units of memory?
Bit, byte, KB, MB, GB, TB, PB, EB, ZB and YB.
How many layers does the OSI model have?
Seven.
What are the generations of computers?
Vacuum tube, transistor, IC, microprocessor and artificial intelligence.
Do mnemonics help in the exam?
Yes, they help to recall long lists quickly.
Should I rely only on mnemonics?
No. Understand the concepts and use mnemonics for the lists.
Is this topic asked in SSC?
Yes. The lists of the economy and the computer awareness are often asked.
What is the primary sector?
The sector that includes agriculture, fishing and mining.
What are the three organs of the Government?
Legislature, executive and judiciary.
How can I make my own mnemonic?
Take the first letters of the list and build a funny sentence.
Rahul Kumar
SSC Exam Expert & Content Editor
Rahul is a senior SSC exam strategist with 8+ years of experience helping aspirants crack CGL, CHSL and MTS exams. He writes in-depth notification breakdowns, exam pattern guides and preparation strategies.