Class XIComputer Science

Assignment-1Lesson11. What is a computer? What are its strengths and weakness?2. Briefly explain IPO Cycle.3. What do you understand by memory cells? 4. What is CPU? Explain its components in detail.5. Give FULL form of

a. KB b.GB. c. TB d.PB e. CPU f. ALU g CU h. MICR I OMR j OCR K.HLL .

6. Define the following terms:a. Hardwareb. Softwarec. Firmwared. Live waree. Peripherals

7. Explain briefly the major innovations of:a. First Generation Computerb. Second Generation Computerc. Third Generation Computerd. Fourth Generation Computer

3 Describe the stored program concept and explain how it changed computing processing.

4 Name the first counting machine5 Why Charles Babbage is known as ‘Father of Modern Computing’?6 Why analytical engine is often called the pioneer computer?7 Briefly explain difference between General purpose computer and special purpose

computer.8 What do you understand by language processor? Explain briefly its type9 Name super computer developed by India10 What are the types of computer? How they are different from each other?11 What is bit? What is binary code?12 Describe Store program concept and explain how it changed computer processing.13 Compare microcomputer, minicomputer, mainframe computer and supercomputer in

terms of cost, size, performance and capabilities14 What is Von Neumann architecture? Did it influence making of computer? How?15 Differentiated the following:-

a. 1st generation computer and 2nd generation computerb. 2nd Generation and 3rd generation computerc. System software and application softwared. Babbage difference engine and analytical engine

16 Fill in the blanks:-a. 1 Byte = ___________ bitsb. 1 nibble= ________ bitsc. 1 KB= _____bytesd. 1 MB= ________ KB=_______bytese. 1GB = ________ MB=______KB=_______bytesf. 1 TB=_________GB=_______MB=________KB=________Bytesg. 1PB=_______TB=_______GB=_______MB=_________KB=______bytesh. PB stands for ____________

Class XIComputer Science

Assignment-2

Lesson21. What is an operating system? What are its functions?2. What is shortcut? What is its significance?3. what is the significance of

a. Recycle binb. Window explorerc. Task bard. Shortcut menu

4. What do you understand by booting? Explain booting process in detail5. Define loading6. What is the difference between Copying, Moving and deleting a file?7. Give some advance features of Windows XP.8. What do you understand by wildcard characters? Give examples.

Lesson41. Define the following:

a. Input deviceb. Output devicec. USB port

2. What is the function of memory?3. Explain briefly types of input device4. What is a printer? Explain briefly types of printer? 5. Explain functioning of a VDU.6. What do you understand by ports? Explain briefly types of ports.7. What do you understand by Blue-ray disk and how it is different from CD-ROM and

DVDs?8. What is ROM and what is the function of ROM? Explain briefly types of ROM.9. Define RAM and what is the function of RAM? Explain briefly types of RAM.10. What is cache memory and what is the function of cache memory? Explain briefly

types of cache memory.11. Differentiate between:

a. Impact and non impact printerb. RAM and ROMc. Internal and external memoryd. DVD-ROM and DVD-Recordablee. Floppy disk and hard diskf. RAM and Cache memoryg. CRT and TFT monitors

12. Name 2 magnetic storage media and 2 optical storage media13. Explain working of HDD14. Why is primary memory termed as ‘destructive write’ memory but ‘non-destructive

read’ memory?15. Suggest appropriate printer in the following situations:-

a. High quality printingb. Quiet printingc. Economical printing.