Class-06 | Computer Technology | Chapter -1 | More About Computers

Class-06 | Computer Technology | Chapter -1 | More About Computers

Answer the Following questions | By: Ashok Sir

Q1. What is a Computer? Name the different types of computers.

Ans: Computer is an electronic device that works on the principal of input process output cycle.

There are various types of computers:-

1. Micro Computers          2.Mini Computers              3. Mainframe Computers          

4. Super Computers

 

Q2. Define Input devices with suitable examples.

Ans: Data is accepted by a computer through the input devices. Example of Input devices keyboard, Mouse, Scanner, Joysticks etc.

 

Q3. Name the different generations of the computers.

Ans:

First Generation (1940-1956)	Vacuum Tube used	Example : UNIVAC,ENIAC
Second Generation (1956-1963)	Transistors Used	Example : IBM 7090, IBM 7094
Third Generation (1964-1971)	Integrated Circuits Used	Example : IBM 370
Fourth Generation(1971-Present)	Microprocessor Used	Example : IBM system & HP 3000
Fifth Generation (Present & beyond)	Artificial Intelligence Used	Example :Robot & Robotic device

 

Q4. Describe the functional of the components of Central Processing unit.

Ans: The functional components of computer are:-

1.    Input devices               2. CPU           3.Output devices

1)   Input devices: - Data is accepted by a computer through input devices for example keyboard.

2)   CPU: - Central processing Unit is the Brain of Computer & it control all the parts of computer system.

3)   Output devices: - it is used for getting information from a computer for example monitor.

 

Q5. What do you understand by computer memory? Write about RAM and ROM.

Ans: computer Memory is the part of the Computer where the data is stored and is accessible to CPU.

Computer Memory is basically two types: - 1) Primary Memory          2) Secondary memory.

 

RAM – RAM is primary memory and volatile in nature.  Volatile means the information stored in RAM is lost when the power of computer switch off.

 

ROM - ROM is primary memory and non volatile in nature. Non Volatile means the information stored in ROM is not lost when the power of computer switch off.

 

Q6. Define output devices with suitable examples.

Ans: Output devices used for getting information from a computer for example monitor, printer, scanner plotter etc.

Non Printed information shown on a display device is called soft copy. While printed information shown on a printer is called a hard copy.

 

 

Q7. What is computer software? Write any two differences between the system software and application software.

Ans: Computer software is a set of programs that runs a computer system. Computer software is stored and execute with the help of computer hardware.

 

System software is a program that manages and supports the computer resources and operations of a computer system.

Example of system software Operating System (Windows).

 

Application software is a set program necessary to carry out operations for a specified

application.

Example of application software Microsoft Office.