Lesson 9. Introduction to the Information Age
Lesson 9. Introduction to the Information Age
I. Choose the correct answers:
1. Who is the father of computer?
- Martin Luther King
- Graham Bell
- Charlie Chaplin
- Charles Babbage
Ans : Charles Babbage
2. Which one of the following is an output device?
- Mouse
- Keyboard
- Speaker
- Pendrive
Ans : Speaker
3. Which one of the following is an input device?
- Speaker
- Keyboard
- Monitor
- Printer
Ans : Keyboard
4. Pen drive is ____________device.
- Output
- Input
- Storage
- Connecting cable
Ans : Storage
5. Fifth generation computer has ___________ Intelligence.
- Transistors
- Integrated Circuits
- Microprocessor
- Artificial Intelligence
Ans : Artificial Intelligence
II. Match the following
| 1. Keyboard | RAM |
| 2. Fourth generation Computer | Input device |
| 3. Hardware | Integrated Circuits |
| 4. Third generation Computer | Drawing tools |
| 5. Application Software | Microprocessor |
| Ans : 1 – b, 2 – e, 3 – a, 4 – c, 5 – d | |
III. Give short Answer
1. What t is a Computer?
Computer is an electronic device storing processes data typically in binary from, according to instructions given to it in a variable program
2. Name the parts of a computer
- Input Unit
- Central Processing Unit (CPU)
- Output Unit
3. What is Hardware and Software?
Hardware
Hardware is the parts of a computer which we can touch and feel. Hardware includes Input and Output devices, Cabinet, Hard Disk, Mother Board, SMPS, CPU, RAM, CD Drive and Graphics Card.
Software
Hardware is lifeless without software in a computer. Softwares are programmed and coded applications to process the input information. The software processes the data by converting the input information into coding or programmed language. Touching and feeling the software is not possible but we can see the functions of the software in the form of output.
4. Define Generation of Computers.
| GENERATION | PERIOD | MAIN COMPONENT USED |
| 1. First generation | 1942-1955 | Vacuum tubes |
| 2. Second generation | 1955-1964 | Transistors |
| 3. Third generation | 1964-1975 | Integrated Circuits( IC) |
| 4. Fourth generation | 1975-1980 | Microprocessor |
| 5. Fifth generation | 1980 – till date | Artificial Intelligence |
5. Describe the components of the Central Secretariat (CPU)
CPU is the brain of the Computer. Th e data is processed in the CPU. The CPU has namely three parts.
- Memory Unit
- Arithmetic Logic -Unit (ALU)
- 3. Control Unit
Control Unit
The control unit controls the functions of all the parts of the computer.
Arithmetic Logic Unit
Arithmetic and Logic unit performs all the arithmetic computations like addition, subtraction, multiplication and division.
Memory Unit :
The memory unit in the computer saves all data and information temporarily. We can classify memory unit into two types namely primary and secondary memory. Memory can be expanded externally with the help of Compact Disk (CD), Pendrive, etc.