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Question No. 1: a) The Internet has fast become a key instrument...

Question No. 1:

a) The Internet has fast become a key instrument for the exercise of the right to freedom of speech. In social media platforms like facebook and twitter, many people and even organizations abuse this power to spread hate-speech. Should the freedom of speech have no boundaries on the internet? What steps should be taken by social platforms to restrict hate-speech?



b) There are a number of types of digital memory available, such as hard disk drive (HDD), random access memory (RAM), solid state drives (SSD) and cache memory. Is there an advantage to having multiple standards or would it be beneficial to consumers if there was only one memory standard, such as just the various sizes of SSDs? Would having a single standard be less expensive and more convenient for consumers? 


Question No. 2:

a) Printers today have many features that include improved quality, photo printing capabilities, digital camera connectivity, built-in flash memory card readers, wireless connectivity, and faster speed. Suppose you are in the market for a new personal printer. Make a list of the most important features needed to meet your needs, and then research printers to identify the best printer for your needs. Be sure to consider both the price of the printer and the price of consumables (such as paper and ink/toner) in your evaluation process.


b) Sequential and direct access are two methods to locate data in memory. Discuss why major devices now a days use direct access? How can we convert data that is written on a device that supports only sequential access to a device that only support direct access method?


Question No. 3:

a) In order to communicate between devices inside a computer. A wire routing scheme is needed such that all the devices remains connected without wasting much wires and the scheme must be scalable to add new devices with ease. Connect the devices mentioned in the diagram, using a single bus controller.


b)Machine cycle defines a loop process with four major components. Explain why machine cycle is important? If the components of machine cycle are inter-swapped, would that cause any problems? Can we add another module to rectify the problem caused by inter-swapping? 


c)Cache memory and RAM both are based on transistor based then why cache memory is needed if we already have RAM (Random Access Memory) as a volatile memory? Is it possible to deploy any one type of memory in computer for all purposes?


Question No. 4:

a) Which form of biometric technology do you prefer for identification purposes: fingerprints, voice intonation, facial characteristics, or retinal identification? Which do you think will become most commonly used in the future?


b) RAID is a method to create live backups of physical hard disks but creating RAID will decreases the usable capacity of the hard drive. Would you prefer to have backup at the cost of half of your disk space? What type of RAID would be better for a home based computer setup that has frequent power failures that could cause hard disk failures?


Question No. 5:

Convert the following by showing all the steps necessary

a) (1001111)2 =  (       )10 

b) (11000001)2 =  (       )16

c) (E16)16 =  (       )10       

d) (56)10 =  (       )16

e) (63)10 =  (       )2

Answer & Explanation
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