A Presentation on

Computer Devices &

Peripherals

BY: KRANTI MADHAV . G

Objective:

Get a basic idea about the internal

devices & working of a Computer.

Able to Analyse the Parts & Specifications

of Computer.

Choose the Configuration of the System

you’d like to Purchase.

Contents:

Micro Processor

RAM (Temporary Storage)

ROM(Permanent Storage)

Graphics Card.

USB(Universal Serial Bus).

Micro Processor:

Executes the Programs

Takes input Processes data Output

Machine Level Code(Binary format)

Two Major Manufacturers of PC processors:

INTEL

AMD(Advanced Micronic Devices)

Types of Processors:

Based on the Architecture:

32 bit.

64 bit ,etc,.

Based on the Cores:

Dual core

Quad core ,etc,.

How Fast is a Cpu?

When you choose a Cpu, you should consider it’s

speed.

Speed is Determined by two factors:

- Clock Frequency

- Amount of Cache Memory

The higher the value , the faster the CPU will be.

The Intel Core i 5-7200U Processor:

Dual Core Processor.

Speed: 2.5 giga hertz turbo boosts upto 3.2 ghz

Ultra Low Power Processor.

Random Access Memory (RAM):

The Primary Memory of a System.

Storage Place Nearer to the Processor.

Quickly Readable / Writtable.

Volatile Memory.

Usually Ranges between 4 gb to 32 gb.

Types of Ram:

Static

Dynamic(Widely Used)

Advancements in RAM:

DDR Ram

DDR2 Ram

DDR3 Ram

DDR4 Ram(Currently in Market)

Advantages Of DDR4:

More Speed & Reliability.

Less Chip Size

Low Power

Less Heat Dissipation

ROM(Permanent Storage):

Two Major types:

HDD(Hard Disk Drive)

SSD(Solid State Drive)

The Hard Disk Drive:

➢ Data is Read / written on a rotating Metal Disc.

➢ Typical Disc Speed is 5400 / 7200 RPM.

➢ Advantages:

Low Cost

Available in Larger Versions.(In Range of Terabytes)

➢ Disadvantages:

Prone to Damage

More Access time

Noise

More Power Consumption

The Solid State Drive:

Data Written to Memory Chips.

Advantages:

Less Access Time.

Data Security.

Less Prone to Damage.

Disadvantages:

More Cost

Only Available in Small Versions i.e, Typically(50 to 128 GB)

Graphics Card:

Used to Display data on the Monitor

Input from CPU & Output to Monitor/Display.

Types:

Inbuilt Graphics Card

Dedicated Graphics Card

Dedicated Graphics VS Inbuilt

Graphics:

Inbuilt Graphics:

Employed with inbuilt Graphics Processor

that shares memory from PC’s Ram

Memory.

Advantages:

Low Power Consumption

Useful for Basic Tasks.

Disadvantages:

Low Quality images

Slows down System performance.

Dedicated Graphics:

Employed with Separate dedicated

memory along with Graphics Processor.

Advantages:

High Quality Graphics

Best Resolution.

Disadvantages:

High Cost

Heating Problems

Universal Serial Bus (USB):

Most Commonly used port for many applications.

Commonly Used as Input Port.

Upgradations:

USB 1.0 USB 2.0 USB 3.0 / 3.1

“

”Thank You for Your Patience.

-SUGGESTIONS ARE GREATLY

ACKNOWLEDGED.

THE

END...

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