Subject Overview
| Course | BA and BSc |
| Semester | UG-Sem 1, UG-Sem 2 |
| Subject | Digital Education |
| Subject Name | Digital Education (Skill Enhancement Course) |
| Notes Language | Hindi |
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| Digital Education Semester 1 & 2 Notes and Important Questions Answer |
Digital Education Semester 1 & 2 Important Questions
1. What is computer system?
2. What are the different generation of computer? Explain.
3. What are the different types of computers?
4. What are the main functions of computers?
5. Write down the merits and demerits of computer.
6. Write different components of computer system.
7. What are the differences between Random Access Memory (RAM) and Read Only Memory (ROM)?
8. Explain input devices and output devices with examples.
9. Differentiate between Hardware and Software.
10. Explain the different types of software.
11. What is file processing in computer?
12. Define computer network. Write some categories of computer network.
13. What is Internet? What are some applications of Internet?
14. What is Cyber Security? What are the different types of Cyber Security?
15. What are the importance of Cyber Security?
16. What are the different Cyber Threats? Explain briefly.
17. What are the major goals of Cyber Security?
18. Write down some Cyber Security Tips.
19. What is Artificial Intelligence? What are the different types of AI?
20. What are the benefits of AI?
21. Define E-Governance and its type.
22. Define formula and function in Spreadsheet. Briefly explain any five functions used in Spreadsheet.
23. Write short notes on the following: (a) Internet (b) Sorting (c) Table (d) Slideshow (e) Phishing (f) Firewalls (g) G2C
Digital Education Semester 1 & 2 Short Notes
1. What is a computer system?
Ans. - A computer system is a set of interconnect components which allows to receive, process, and present data. It is integrated by hardware and software. It comprises input devices, a central processing unit (CPU), memory storage, and output devices.
2. What are the different generations of computers? Explain.
Ans. - Five main generations of computers:
- First Generation (1940-1950): Used vacuum tubes as primary electronic component for processing. Example: ENIAC.
- Second Generation (1950-1960): Transistors replaced vacuum tubes for computing. Example: IBM 7094.
- Third Generation (1960-1970): They introduced Integrated Circuits (ICs) which enabled to connect so many transistors in a circuit. IBM 360 series.
- Fourth Generation (1970-Present): Microprocessors were introduced. Example: Apple II, IBM System were some early fourth generation computers. All computers devices such as desktop, PC, laptop, mobile devices are fourth generation computers.
- Fifth Generation (Present and Beyond): Based on artificial intelligence.
3. What are the different types of computers?
Ans. - Some types of computers based on their processing power and capabilities:-
- Supercomputers: Extremely fast and powerful, used for scientific simulations.
- Mainframe Computers: Large systems used by businesses for bulk data processing.
- Minicomputers: Mid-sized, used in manufacturing processes.
- Microcomputers: Personal computers like desktops and laptops.
4. What are the main functions of computers?
Ans. -
- Input: Accepting data.
- Processing: Performing operations on the data.
- Storage: Saving data and instructions.
- Output: Producing results.
5. Write down the merits and demerits of computers.
Ans. - Merits:
- High Speed
- Accuracy
- Storage Capability
- Automation
- Productivity
Demerits:
- Dependence on power
- Security Issues
- Unemployment
- Privacy Concerns
6. Write different components of a computer system.
Ans. -
- Input Devices: Keyboard, Mouse
- Output Devices: Monitor, Printer
- Central Processing Unit (CPU): ALU, CU
- Memory: RAM, ROM
- Storage Devices: HDD, SSD
7. What are the differences between Random Access Memory (RAM) and Read Only Memory (ROM)?
Ans. -
- RAM: Volatile memory, used for temporary data storage.
- ROM: Non-volatile memory, used for permanent data storage.
8. Explain input devices and output devices with examples.
- Input Devices: Devices used to input data into the computer. Examples: Keyboard, Mouse.
- Output Devices: Devices used to output data from the computer. Examples: Monitor, Printer.
9. Differentiate between Hardware and Software.
Ans. -
- Hardware: Physical components of a computer. Example: Hard Drive.
- Software: Programs and applications that run on a computer. Example: Operating System.
10. Explain the different types of software.
Ans. -
- System Software: Operating Systems like Windows, Linux.
- Application Software: Word processors, web browsers.
- Utility Software: Antivirus, disk management tools.
11. What is file processing in a computer?
Ans. - File processing involves the creation, modification, reading, and deletion of files on a computer system, often managed by the operating system.
12. Define computer network. Write some categories of computer networks.
Ans. - A computer network is a group of interconnected computers that communicate and share resources. Categories include:
- LAN (Local Area Network)
- WAN (Wide Area Network)
- MAN (Metropolitan Area Network)
- PAN (Personal Area Network)
13. What is the Internet? What are some applications of the Internet?
Ans. - The Internet is a global network of interconnected computers. Applications include:
- Web Browsing
- Online Shopping
- Social Media
- Cloud Computing
14. What is Cyber Security? What are the different types of Cyber Security?
Ans. - Cyber Security involves protecting systems, networks, and programs from digital attacks. Types include:
- Network Security
- Information Security
- Application Security
- Operational Security
15. What is the importance of Cyber Security?
Ans. - Cyber Security is crucial for protecting sensitive data, ensuring privacy, maintaining system integrity, and preventing financial loss and disruption.
16. What are the different Cyber Threats? Explain briefly.
Ans. -
- Malware: Malicious software like viruses, worms, and trojans.
- Phishing: Fraudulent attempts to obtain sensitive information.
- Ransomware: Malware that encrypts files and demands ransom.
- Denial of Service (DoS): Attacks that disrupt service availability.
17. What are the major goals of Cyber Security?
- Confidentiality
- Integrity
- Availability
- Authentication
- Non-repudiation
18. Write down some Cyber Security Tips.
- Use strong passwords.
- Enable two-factor authentication.
- Keep software updated.
- Avoid clicking on suspicious links.
- Backup data regularly.
19. What is Artificial Intelligence? What are the different types of AI?
Ans. - Artificial Intelligence (AI) is the simulation of human intelligence in machines. Types include:
- Narrow AI: Specialized in one task.
- General AI: Human-level cognitive abilities.
- Super AI: Surpasses human intelligence.
20. What are the benefits of AI?
- Automation of tasks
- Enhanced decision-making
- Improved efficiency and productivity
- Data analysis and insights
- Better customer experiences
21. Define E-Governance and its types.
E-Governance is the use of ICT to deliver government services. Types include:
- G2C (Government to Citizen)
- G2B (Government to Business)
- G2G (Government to Government)
- G2E (Government to Employee)
22. Define formula and function in Spreadsheet. Briefly explain any five functions used in Spreadsheet.
A formula is an expression that calculates values in a cell. Functions are predefined formulas.
- SUM: Adds values.
- AVERAGE: Calculates the mean.
- VLOOKUP: Looks up data vertically.
- IF: Checks a condition and returns a value.
- CONCATENATE: Joins strings of text.
23. Write short notes on the following:
(a) Internet: A global network connecting millions of private, public, academic, business, and government networks.
(b) Sorting: Arranging data in a specific order, such as ascending or descending.
(c) Table: A structured arrangement of data made up of rows and columns.
(d) Slideshow: A series of slides displayed in sequence, often used for presentations.
(e) Phishing: A cyber attack method where attackers trick individuals into providing sensitive information.
(f) Firewalls: Security systems that monitor and control incoming and outgoing network traffic.
(g) G2C: Government to Citizen services, providing public services to citizens electronically.
Digital Education Semester 1 & 2 Detailed Notes
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