CS101 Assignment 1 Solution Fall 2011
Q.1. There are multiple ways to enhance the performance of a computer
system. Discuss what role a cache can play in boosting up the
performance of a computer system? (5 Marks)
Answer:
A CPU cache is a cache used by the central processing unit of a computer to reduce the average time to access memory it is different as compare to the main memory which is used to copy data from the secondary storage it store the data inside the page file and then take it from there as compare to cache memory it exists inside the cpu and directly gives the data to cpu to process the instructions lets see a figure which will make it more clear. The cache is a smaller, faster memory which stores copies of the data from the most frequently used main memory locations. As long as most memory accesses are cached memory locations, the average latency of memory accesses will be closer to the cache latency than to the latency of main memory. It is Volatile memory, also known as volatile storage, (violations) is computer memory that requires power to maintain the stored information, When the
processor needs to read from or write to a location in main memory, it first checks whether a copy of that data is in the cache. If so, the processor
immediately reads from or writes to the cache, which is much faster than reading from or writing to main memory. Most modern desktop and server CPUs have at least three independent caches: an instruction cache to speed up executable instruction fetch, a data cache to speed up data fetch and store, and a translation look aside buffer (TLB) used to speed up virtual-to-physical address translation for both executable instructions and data. Data cache is usually organized as a hierarchy of more cache levels which are L1 and L2 etc.
Q.2. Generally there is a concept that "Memory" and "Storage" are same
terms. Do you agree? Justify your opinion with a real life example. (5
Marks)
Answer:
AS we know nowadays these are very common terms which we use in ourdaily life so for that you called mostly the Ram as the memory of the system and the Storage device which is called the hard disk or Flash (USB) memory or can be a memory card. So what's the difference between them lets see it in real life that in Memory which is Volatile (violations) and need powers to maintain if the electricity is off then it is going to wash each and everything. As compare to the Storage Non-Volatile memory which doesn't need the power all the time when the data is store to it and power went off next time you can see the data inside it. As we can see a new functions which start from the Xp Windows Os from Microsoft. Hibernate it store the data to the hard drive from the Memory You can say the Memory to storage when you hibernate the
system it will open next time all the files and applications where you were working. So it's an example from real life.
Q.3. Convert the following Octal Number to Hexadecimal Number by
Writing each and every step of conversion (53324)8 => (?)16
Answer:
(53324)8 = 5*8^4+3*8^3+3*8^2+2*8^1+4*8^0
(53324)8 = 5*4096+3*512+3*64+2*8+4*1
(53324)8 = 20480+1536+192+16+4
(53324)8 = (22228)10
Now converting into hexadecimal
| 16 | 22228 | remaindwer |
| 16 | 1389 | 4 |
| 16 | 86 | D |
|
| 5 | 6 |
|
|
|
|
|
|
|
|
So the hexa decimal equivalent is
(56D4)16
ISL201 Assignment 01 Idea Solution
Given Scenario:
An Islamic society well portrays the bases of principal of Beliefs and righteous conduct and practice of these two principles governs the Islamic society as well. An Ideal Muslim depicts Islamic values through his conduct in practical life and it also forms the very basis of his belief as a Muslim. Holy Quran and Holy Sunnah serve as a role model for Muslims. Islamic society also constitutes hundreds of mosques, Islamic centers and organizations. But all these sources of spiritualism seem to be ineffective in moral characters of Muslims.
Given Question:
You are to point out what
is missing and becoming a cause of this downfall in the Beliefs and values of Islamic society and suggest how we can overcome these issues.
Answer:
from my point of view i think the missing thing is taqwaa in Muslims. because; if we fear from Allah then every thing that we do will be according to him and his Prophet (S.A.W.W). The missing thing is taqwaa.
coz if we do not fear from (Allah) then whatever we do it will be ineffective in moral.
Taqwa means: to cleanse or purify the heart and the soul. Some Aayaat in Sort ush-Shams in which Allah says proves this fact:
" By the sun and its rising sunshine, and by the moon when it comes after the sun, and by the day when it brightens,
it, and by the night when it enshrouds it, and by the heaven and as He made it, and by the earth and as he extended (outspread) it,
and by the soul and as He shaped it, then He inspired it understanding of licentiousness and warding off!
Verily prospered he who purified it, and failed he who threw it into dust [91:1-10]
Allah (T) says:
"It is he who raised up from among the illiterate a Messenger from among them, recites to them His verses and Book and the Wisdom and;
before that they had been lying in manifest forgetfulness." (62-2)
1) To teach the Qur'an.
2) To teach the Sunnah.
3) To show the means of purifying the soul.
This purification is obtained by doing the proper acts of 'ibaadah and by avoiding sins and
disobedience.
For More Detailed Solution please Read Lecture 01 to Lecture 03
Thanks
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