BCA 2nd Sem (Computer Organization)


Sr.
No.
Topic Name
Links to Study Material
1
Memory Hierarchy
#Memory Hierarchy means Levels of Memory
#Memory is the place in computer system where the instructions and data are stored.
#We have number of types of memories that we can use. But some of them are very costly , some are very small in size, some are very fast and some are very slow.
# Because of these reasons we have divided memories according to levels ( hierarchy )
2
Memory Hierarchy(Continued…)
# As you can see in the diagram of memory Hierarchy , at the top is Cache Memory/ Register and at the bottom is Magnetic Tape/ Magnetic Disk.
# As we go to the upward direction, speed of memory increases, storage capacity decreases and cost of memory increases.
# But as we move downwards, speed of memory decreases, size increases and cost reduces.
# So,, in order to keep the cost of Computer System balanced, we have to keep in mind Memory Hierarchy System.

3
Cache Memory
4
Cache Memory Levels
5
Cache Memory Tips
# Cache Memory is a memory with which CPU can directly communicate.
# It is the fastest memory, even more fast than Main Memory.
# This Memory is very small in size.
# It store only that data and instructions which are again and again used by Processor .

6
Diagram of Levels of Cache
Displaying cache.png
7
Cache Memory Levels (Some tips)
# L1 (Level 1) cache is the fastest memory .As far as the size goes, the L1 cache typically goes up to 256KB.
#L2 (Level 2) cache is slower than L1 cache, but bigger in size. Its size typically varies between 256KB to 8MB.
#L3 (Level 3) cache is the largest cache memory unit, and also the slowest one. It can range between 4MB to upwards of 50MB
8
What is a Cache Hit?
A cache hit is when an application needs data and finds that data in the cache (a good thing) .
9
What is a Cache Miss?
A cache miss is when an application needs data and doesn’t find it in the cache(a bad thing).
10
Associative Memory

11
PPT of Associative Memory

12
Working of Associative Memory(with diagram)

13
Associative Memory(Video)

14
Virus/Types of Virus/Detection, Prevention and Protection


15
Virus(Youtube Videos)

16
Internal and External Cards(PC Cards)

17
Physical Inspection and Diagnostics on PC
Students,
Physical inspection or Diagnostics is a method of testing a computer hardware device or software program to ensure it is working in the proper manner or not ?
Study this topic from your book
And watch this video to understand this topic
https://youtu.be/jS4l3cbxGjE
18
Various Physical Components of a Computer
It is the most easiest topic. With the help of your book and internet , just prepare an assignment on this topic with the help of diagrams and submit it by 22 April,2020
(physical components: monitor, cpu, ups, mouse, keyboard etc.
19
Fixed and Floating Point Representation

20
Difference between Fixed and Floating Point

21

Addition and subtraction for sign magnitude and 2's complement numbers



22

Integer multiplication using booth's algorithm (Very Important Topic)(watch videos to understand it)


23

Pseudoinstruction


24

Assembly language program to add two numbers


25

Assembly language program to subtract two numbers

 


26

Assembly language program to multiply two numbers

 

https://youtu.be/jaNnObbRFh4

               



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