✅ Advantages of Computers
- High Speed
- Can process millions of instructions per second.
- Example: Generating payroll or financial statements in seconds.
- Accuracy
- Performs tasks without error (if data and instructions are correct).
- Example: Tax calculations, scientific computations.
- Automation
- Once programmed, works automatically without human intervention.
- Example: ATM transactions, online order processing.
- Storage Capacity
- Can store huge amounts of data in a small space.
- Example: Entire company records stored digitally.
- Connectivity & Communication
- Supports internet, email, video conferencing, and social media.
- Example: Businesses working globally through online meetings.
- Multitasking
- Can perform multiple tasks simultaneously.
- Example: Downloading files, browsing internet, and preparing reports at the same time.
- Diligence (No Tiredness)
- Unlike humans, computers never get tired or bored.
- Example: 24/7 online customer service portals.
- Versatility
- Can be used in any field: business, education, healthcare, entertainment, research.
- Decision Support
- Helps in decision-making with data analysis, AI tools, and dashboards.
⚠️ Limitations of Computers
- Lack of Intelligence
- Cannot think, reason, or make decisions on its own (depends on human instructions).
- Garbage In, Garbage Out (GIGO)
- Wrong input → Wrong output.
- Example: If wrong sales data is entered, profit calculation will be wrong.
- No Feelings or Emotions
- Cannot handle tasks requiring creativity, empathy, or moral judgment.
- Example: Cannot replace a teacher’s motivation or a doctor’s care fully.
- Dependence on Human
- Needs human instructions, software, and supervision.
- Security Risks
- Data can be hacked, stolen, or corrupted by viruses.
- Obsolescence (Becomes Outdated Quickly)
- Technology changes fast; hardware/software need upgrades regularly.
- High Initial Cost
- Setup cost (hardware + software + training) is high, especially for small businesses.
- Unemployment Risk
- Automation can replace routine jobs (e.g., clerical staff, cashiers).
Summary Table
| Advantages | Limitations |
|---|---|
| Speed & accuracy | No intelligence |
| Automation | GIGO (wrong input = wrong output) |
| Huge storage | No emotions |
| Multitasking | Dependence on humans |
| Connectivity & communication | Security risks |
| Reliability (no tiredness) | Becomes outdated |
| Versatility in all fields | High cost & unemployment risk |