CBSE Class 6 Computer Components of Computers Worksheet

Short Answer Type Questions:

Question: What is the function of ALU?
Answer: Full form of ALU is Arithmetic and Logic Unit. It is a core component of CPU. It performs all the arithmetic and logic related tasks. This part is integrated within the “Micro-processor”.

Question: What are the types of memories?
Answer: Computer Memories are of following two types:
- Primary Memory
- Secondary Memory

Question: What is Micro-Computer?
Answer: Micro Computer is also called Personal Computer. These computers are the most common type of computers that are used now-a-days. The cost of these types of computers is very less. These computers are used in small business, small offices, schools or other workplaces.

Question: Write the name of parts of CPU.
Answer: CPU consists of the following three parts:
- Memory Unit (MU)
- Control Unit (CU)
- Arithmetic Logical Unit (ALU)

Question: What are different categories of Computers?
Answer: Following are the common categories of computers:
1. Micro Computer (Personal Computer)

2. Mini Computer

3. Main Frame Computer

4. Super Computer

Question: What are Secondary Storage Devices?
Answer: Secondary Storage is also known as Auxiliary Memory. To store data permanently in the computer system, we use secondary storage devices. A processor is not able to access this type of memory directly. Hard Disk, CD, DVD, Pen Drive etc. are the examples of secondary memories.

Long Answer Type Questions:

Question: What do you mean by Block Diagram of Computer? Define its Components.
Answer: Block diagram of computer refers to the layout of attachment of all components within a computer system. Following figure shows the block diagram of computer.
Explanation of its various components is given below:
- Input: This part of computer is used to accept data and instructions. Keyboard and Mouse are the commonly used input devices for this purpose.
- Processing: This part performs operations on data as per the received instructions. Processing
is done by the Microprocessor. There are 3 main components of microprocessor: ALU, CU and MU.
- Output: This part shows the result after processing. Monitor is the commonly used output device for this purpose.

Question: How Computer Works? Explain each term in detail.
Answer: The way of processing within a computer system is called “Processing Cycle of a Computer”. We can represent processing cycle of a computer as given bellow:
Explanation of its various components is given below:
- Input: This part of computer is used to accept data and instructions. Keyboard and Mouse are the commonly used input devices for this purpose.
- Processing: This part performs operations on data as per the received instructions. Processing is done by the Microprocessor. There are 3 main components of microprocessor: ALU, CU and MU.
- Output: This part shows the result after processing. Monitor is the commonly used output device for this purpose.