Single Core & MultiCore Processor Brief Presentation for College Students who are searching form Google for all Presentation

1. Single & Multi-Core
Processor
Group Members:
SH/CSE-215004 Bashanbor Mawlong
SH/CSE-215007 Chingchip D Shira
SH/CSE-215010 Drass Berry Ch Momin
SH/CSE-215016 Justify Born Shadap

2. What is a Processor?
Processor: or microprocessor is a small
chip that resides in computers and other
electronic devices.
 Its basic job is to receive and process
inputs and provide the appropriate outputs.
 It can preform Trillions calculations per
second depending on its processor type.
 First Intel Processor : Intel 4004
 Latest Intel Processor (2018) : Intel i9 8th
Generation (Released March 2018)

3. Processor Cores
 Over the years since 1971, Processors has emerge from Single
Core to Dual, Quad, Octa, Hexa & Deca Cores Processors
Core : is usually the basic computation unit of the CPU
that handles the Mathematical & Logical operations.
 A CPU with more cores can perform more task at a time
 But, having a multicore processor does not mean that CPU
speed will increase because CPU Cores have to communicate
with each other through channels, which uses up extra speed

4. Processor Cores
 A core can have its own Clock Speed
 For Example, a Quad Core Processor is compose of 2 Dual Core :
The First Dual Core may be clocked at 2.0 GHz for processes that required fast
Computation speed Like Video Editing, Playing Games, etc. and the other dual
core maybe clocked at 1.4GHz for processes which require slow computation
like Playing Music or Copying Files
 Another Example, a Hexa Core Processor is composed of 1 dual
core clocked at 2.4GHz and 1 quad core clocked at 1.4GHz.

5. Single Core Processor
 A Single-Core Processor is a microprocessor
with a Single Core on a chip, running a
single thread or single Process at a time.
 Single Core Processors was impossible to
achieve Performance Gain like increase clock
speed, increase number of transistors on a
single chip, increase CPU cache sizes, or
adding execution units
 Examples : Intel Core Solo T1300 & Intel Core
Dou T2700

6. How Single Core Processor Works
 Single Core Processor has
only One Core, which means
it can only start one
operation at a time.
 As shown in figure, All the 4
Application Program(or
Processes) will be assigned a
CPU one at at a time

7. Single Core Processor Characteristics
 A Single-Core Processor is a microprocessor with a Single
Core on a chip,.
 It can run a single thread or single process at a time.
 CPU contains only one core to process different operations
 It was the first type of CPU used on the 1970s
 Single Core CPU can do Multitasking by implementing Pre-
emptive Round Robin Scheduling Algorithm

8. Dual Core Processor
 A dual-core processor is a CPU with two processors
or "execution cores" on a single chip.
 Each processor has its own Cache and Controller,
which enables it to function as efficiently as a
single processor.
 The two cores are linked together, therefore they
can perform operations faster than a single Core
processor.
 Examples : Intel Core™ 2 Duo & AMD X2

9. Quad Core Processor
It is a Multi Core Processor composed
of two dual Cores
Dual Core + Dual Core = 1 Quad
Core Processor
With Four Cores, it can perform four
tasks at a time
Example : Intel Core 2 Quad, AMD
Phenom X4

10. How Multi-Core Processor Works?
The motherboard and the operating system needs to
check whether the processor has multiple cores (dual
,quad, etc.)
Older computers only had one core, so an older
operating system might not work too well if a user
tried to install it on a newer computer with multiple
cores.
The operating system then tells the motherboard that
a process needs to be executed

11. How Multi-Core Processor Works?
 The Operating System can
also tells the processors to
executes more processes
simultaneously depending
on the cores of the
processor
 Within a processor, there
are multiple levels of Cache
Memory that hold data for
the processor’s next
operation or operations.
Figure : Dual Core Processor :- Each core has
its own Cache L1,
interfaced with another cache L2,
which is then interfaced with the RAM

12. How Multi-Core Processor Works?
 The first level of cache memory is the L1 cache. If the processor cannot
find the data it needs for its next process in the L1 cache, it looks to the L2
cache.
 The L2 cache is larger in memory, but is slower than the L1 cache.
 If data is not found in the cache L2, it will look in the RAM.
 A core can have its own Clock Speed.
 For Example, a Quad Core Processor is compose of 2 Dual Core : The First
Dual Core may be clocked at 2.0 GHz for processes that required fast
Computation speed Like Video Editing, Playing Games, etc. and the other
dual core maybe clocked at 1.4GHz for processes which require slow
computation like Playing Music or Copying Files.

13. Single vs Multi-Core Processor
Single Core Processor
 It has only 1 core
 Single core processor have lower
clock rate.
 It allows higher efficiency with high
energy consumption .
 In single core processor memory is
utilized by itself.
 Same Clock Speed for all Processes
Multi Core Processor
 It has multiple cores (Dual, Quad ,etc)
 Multi-core processor have higher
clock rate.
 It allows higher efficiency with low
energy consumption.
 In Multi-core processor memory is
shared.
 Can have different clock speed for
different processes depending of the
type of processor

14. Thank You