Draw a suitable diagram of a magnetic disk

Reference no: EM133579596

Activity 1:

Introduction to Computer Systems and Networking

Answer all the questions.

1) What do you identify as computer peripherals?

2) When two USB devices were connected to the same computer device A took 1 mins to transfer 100 MB file and device B's speed was shown as 10 Mbps. Compare the data transfer speed of devices A and B.

3) Arrange the following storage types in the order of increasing speed; i.e. slowest to fastest
Hard disk,
DVD,
Magnetic tape,
CPU registers,
DRAM,
Cache (SRAM),
Thumb drive

4) Draw a suitable diagram of a magnetic disk pointing its parts (e.g. Platter, Track, Sector, Block and Reading head).

5) Average seek time of a hard disk was found to be 10 ms. Its rotational speed is given as 50 s-1 and the number of sectors is 8. Find the total time it takes to access a data block.

6) Explain the optical data access mechanism used in CD/DVDs

7) What is the difference between magnetic disk and optical disk tracks?

8) The colour levels of an image can be given in number of bits. For example, there can be images of 8-bit and 16-bit colour levels. Explain their difference in image quality giving the technical reasons.

9) A screen resolution is given as 1920 x 1080.
i. Explain the meaning of these numbers.
ii. What is the total number of pixels of an image of this resolution

10) Let say a 16-bit RGB colour image is displayed on the screen described in 9.
i. How many bytes you need to represent a pixel of this image
ii. Hence calculate the total size of the described image in MBs
iii. What is the minimum data rate required if you need to stream a video of this resolution with a 25/s frame rate.

11) Compare the LCD, LED and CRT display technologies.
12) What are the different types of printers available in the market?
13) Compare the laser and inkjet printer technologies

Activity 2:

Answer all the questions.

1) The following figure illustrates a basic personal computer system. You can see different controllers and interfaces connected to the bus. What are the purposes of having these controllers and interfaces?

2) What is the difference between a personal computer and a mainframe computer? Compare the architectures and applications.

3) How a supercomputer is different from a mainframe computer?

4) What is DMA controller? How is it useful in memory access?

5) Describe the following buses and their hierarchy
• Memory bus (front-side bus)
• Processor bus
• Backplane bus
• Cache bus

6) Compare USB 2 and USB 3 standards

7) What is the purpose of using channel architecture used in mainframe computers? Explain with a suitable diagram

8) What is a computer cluster? What are the advantages of having a cluster?

9) Why in most cases Beowulf clusters are preferred over a supercomputer? What are the applications for which you need a supercomputer?

10) Describe how you might use a cluster architecture to provide rapid scalability for a Web-based company experiencing rapid growth.

11) Find a current example of a large-scale grid computing project and describe it in as much detail as you can. What is the purpose of the project? What is the problem being addressed? How is grid computing being used to implement a solution to the problem?

12) Cloud computing is a recent technology being marketed and used as a means toprovide off-site computing power to an organization. Locate information aboutcloud computing and compare cloud computing with grid computing. In what waysare they similar? How do they differ?

Reference no: EM133579596

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