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# CS101 Assignment#01 Fall 2011 Complete Solution

CS101 Assignment#01 Fall 2011 Complete Solution

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buri bat esa ni kehty

BANDY KO BAT ACHI KRNI CHAHIYE GULT NAHI BOLNA CHAHIYE

CS101 1st Assignment Idea Solution Winter Fall 2011

NOTE: Do not copy and paste as it is

Assignment No. 1

CS101 (fall 2011)

Assignment No. 01

Semester Fall 2011

Introduction to Computing-CS101

Total Marks: 15

Due Date: 31-10-2011

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)

same terms. Do you agree? Justify your opinion with a real life

example. (5 Marks)

Q.3. Convert the following Octal Number to Hexadecimal Number by

writing each and every step of conversion process: (5 Marks)

(53324)8 => (?)16

Solution:

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)

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, (vrshc) 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 [vu

solutions] lookaside 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.

are same terms. Do you agree? Justify your opinion with a real

life example. (5 Marks)

AS we know nowadays these are very common terms which we use in

our daily 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

difference between them lets see it in real life that in Memory which is

Volatile (vrshc) and need powers to maintain if the electricity is off

then it is going to wash each and everything. As compare to the

Sorage Nontime 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

Q3).Convert the following Octal Number to Hexadecimal

Number by writing each and every step of conversion process:

(5 Marks) (53324)8 => (?)16

First we will convert this to binary to decimal

First we will convert this to binary to decimal
(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 hexadecimal16 22228 remainder
16 1389 4
16 86 D
5 6

So the hexa decimal equivalent is (56D4)16

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