Comprehensive questions and detailed answers for Unit 1: Introduction to Computer System (16Hrs.). Perfect for exam preparation and concept clarity.
What is an ergonomic keyboard? Explain the working mechanism of a keyboard.
Explain different types of computers on the basis of size and power.
Prepare a specification of a personal computer which you want to purchase.
Explain the diligence and versatility features of computer.
What is computer interface? Describe a mainframe computer's essential feature.
Describe the criteria for evaluation when purchasing a new laptop.
Draw a block diagram of a digital computer and explain each unit in detail.
Consider the following spreadsheet and write appropriate formulas:
| ID | Customer Name | Previous Reading | Current Reading | Consumption | Price | Discount | Total Amount |
|---|---|---|---|---|---|---|---|
| 1 | Ram Rai | 256 | 406 | ? | ? | ? | ? |
| 2 | Mohan Baskota | 425 | 525 | ? | ? | ? | ? |
| 3 | Sita Subba | 420 | 670 | ? | ? | ? | ? |
| 4 | Hari Rajbansi | 920 | 1457 | ? | ? | ? | ? |
| 5 | Binod KC | 650 | 1245 | ? | ? | ? | ? |
| 6 | Ajay Tandukar | 456 | 1245 | ? | ? | ? | ? |
| 7 | Hom Joshi | 478 | 1657 | ? | ? | ? | ? |
| 8 | Binshnu Acharya | 654 | 4578 | ? | ? | ? | ? |
| 9 | Krishna Khanal | 478 | 1245 | ? | ? | ? | ? |
| 10 | Nirjal Dhamal | 654 | 879 | ? | ? | ? | ? |
Maximum Consumption: ?
Minimum Consumption: ?
a) consumption = Current meter reading minus Previous meter reading.
b) To calculate the Price, add the Rs. 75 monthly meter costs to the following rates: Rs. 5 per unit for the first 100 units as minimum charge, Rs. 10 per unit for the next additional 150 units, and Rs. 20 per unit for additional units exceeding 250.
c) XYZ Water Supply intends to offer its customers a festive discount based on their consumption and price. If consume unit equal or more than 250 units, calculate 5% discount on Price, similarly if consume unit equal or more than 150, calculate 2% discount otherwise calculate 1%.
d) Total Amount = Price minus Discount.
e) Find maximum and Minimum consumption unit.