Ppt on storage devices of computer

Hardware and Software Basics. Computer Hardware  Central Processing Unit - also called “The Chip”, a CPU, a processor, or a microprocessor  Memory (RAM)

drive works from How Stuff Works website. How Stuff Works How Stuff Works Storage Devices Floppy Disk Drives  Capacity is 1.44 to 2.0 megabytes (MB or millions of bytes).  Storage device with the smallest capacity  Most portable storage media  Magnetic storage device. Storage Devices CD-ROM Drives  Typically installed on all new computer systems. (Were add-on device until the mid 1990’s).  Capacity is 600 to 750 megabytes (MB/


Computers © 2005 Prentice-Hall, Inc.Slide 1. Computers Chapter 5 Storage and Input/Output Devices © 2005 Prentice-Hall, Inc.Slide 2.

© 2005 Prentice-Hall, Inc.Slide 1 Computers Chapter 5 Storage and Input/Output Devices © 2005 Prentice-Hall, Inc.Slide 2 Computers Chapter 5 – Storage and Input/Output Devices Objectives Understand the various types of magnetic disk storage devices Understand the various types of optical laser disc storage devices Understand common input devices Understand common output devices © 2005 Prentice-Hall, Inc.Slide 3 Computers Storage and Input/Output Devices Mass Storage Magnetic Disk Tape Optical laser © 2005/


The iCloud By: Alexander Sorto. What is the iCloud?  Cloud storage service  Developed by Apple  Helps store data and manage Apple content  Specifically.

content  Specifically designed for apple products  Systems with IOS can work with it only What is Cloud Storage?  Service for data storage in a remote location  Takes place of flashdrives or other storage devices  Internet provides connection between computer and storage  Benefit of being wireless  Secure location Apple’s History with Cloud Storage  iTool – 2000 .Mac – 2002  MobileMe– 2008  iCloud - 2011 Apple Features  Find My iPhone  iTunes Match  Photostream/


GCSE Computing#BristolMet Session Objectives#2 Must understand the need for input, output and storage devices in a computer system Should describe common.

Must understand the need for input, output and storage devices in a computer system Should describe common input and output devices Could justify the selection of suitable input and output devices for given circumstances. Practice Python commands using www.codecademy.com Attempt using the Python IDE GCSE Computing#BristolMet 2.1.2 Computing Hardware Definition: Computer hardware is the physical components of a computer system. They can be either inside the/


The Computer System  Components Hardware Software  Electronic device  Follows instructions Comparisons Addition Subtraction Storage.

forth from RAM to storage Expansion Cards Circuit Cards Allow you to connect (plug in) peripheral devices to your computer Card attaches directly to motherboard at an expansion card slot Include Modem—telephone/internet Video—monitor (blue) Sound—speakers Ports Special socket in computer Attaches cable/device to computer Types Openings in back of computer USB ports Modem Modem is a device that allows a computer to transmit data through/


Data Storage Systems: A Survey Abdullah Aldhamin July 29, 2013 CMPT 880: Large-Scale Multimedia Systems and Cloud Computing Course Project.

I/O in large-scale data-intensive computing – Improve the system performance – Less power Gordon… (Cont’d) How SSD is integrated? – Replaced conventional hard disks with SSDs – Major device-level modification: New flash translation layer Gordon… (Cont’d) Costly $$$ Not suitable for widespread adoption Requires major device level modification – Optimized for specific workloads Hybrid: Griffin Griffin hybrid storage system – SSD is an end-point/


Computer Systems Nat 4/5 Computing Science Lesson 8: Input, Output Devices and Backing Storage.

/5 Computing Science Lesson 8: Input, Output Devices and Backing Storage 1.Name a device that has an embedded computer 2.Why type of computer can process data the fastest? 3.What computer is the most mobile? 4.What does 3.7Ghz mean? 1.Microwave, television, washing machine, dishwasher etc. 2.Supercomputer 3.Smartphone 4.3 billion 700 million instruction per second Lesson Aims  By the end of this/


Computer Systems Mrs. Butera. Computer Systems Hardware Software.

Hardware Software Hardware The physical components that a computer is made of Central Processing Unit (CPU) Main Memory (RAM) Secondary Storage Devices Input Devices Output Devices Hardware – Data Storage Main Memory (RAM) – temporary data storage for running applications Secondary Storage Devices – long term data storage  Hard Drive  Flash Drive (USB Drive)  CDs and DVDs  Floppy Disks Hardware - Input Devices Input is any data the computer collects from the outside world. Keyboard Mouse Scanner/


What about computer Input Device Output and Display device Digital storage device Processing Componen ts 11111 22222 33333 44444 55555.

What about computer Input Device Output and Display device Digital storage device Processing Componen ts 11111 22222 33333 44444 55555 What does PC stands for? Answer Personal Computer Home What is a Laptop Answer A portable computer Home What is a PDA Answer Handheld computer Home What is a server Answer A computer that manages files and other resources for a network Home What does OS stand for Answer Operating/


Module 1.5 Problems with I/O devices and storage Theme: Finding solutions.

devices and storage Theme: Finding solutions Mouse, keyboard and screen problems The mouse and keyboard –Mouse stops responding –Mouse ‘sticks’ –Computer gives off a strange ‘beeping’ sound when booting. Blank screen –Sleep mode –Adjust buttons on screen –Check connection to computer ‘Strange’ screens –Scrambled screen - resolution –Slightly tinted screen – check connection to computer/printer –Paper is finished, jammed or printer is out of toner Default printer Printing problems Printer does not print /


What is it? CLOUD COMPUTING.  Connects to the cloud via the Internet  Does computing tasks, or  Runs applications, or  Stores Data THE AVERAGE CLOUD.

editing software  Online banking apps  Social media apps  Communication OTHER SOFTWARE SERVICES WHY THE CLOUD?  Can be less expensive compared to buying software and hardware  Can be used from any computer or device with an Internet connection  The device does not need as large of an internal storage system  Compatible with most computers and operating systems  Updates occur across the service ADVANTAGES  Security Issues  Terms/


The Computer Basics 1 Mattson. Computer gadgets, devices & file storage Digital Art Photography Art Mrs. Ruth Mattson.

The Computer Basics 1 Mattson Computer gadgets, devices & file storage Digital Art Photography Art Mrs. Ruth Mattson This is a test your knowledge quiz. (I need to know what you need to learn.)/ how to operate this device? Explain What is this? How can this be helpful to you? What are these sites good for? You can download your pictures directly into dropbox from your camera. What are the advantages of using this feature? What three drives are listed on my computer? What kind of file storage do you use? Do/


CompTIA A+ Guide to Managing & Maintaining Your PC By: JEAN ANDREW Computer Maintenance Chapter 1: Computer Basics Knowledge.

Used For Input And Output –Hardware Inside The Computer Case –The Motherboard –Processor and the Chipset –Storage Devices –Motherboard Components Used for Communication Among Devices –Interface (Expansion) Cards –The Electrical System –Instructions Stored on the Motherboard and Other Boards Copyright © 2007 - CIST 4 Hardware Needs Software to Work Hardware: the computer’s physical components Software: the set of instructions that directs hardware to accomplish a task/


Network Virtualization Policy-Based Isolation QoS Performance Metrics Live & Storage Migrations Cross-Premise Connectivity Dynamic & Multi-Tenant.

VMs not designed to handle failures, H/A at server level, Failover clustering as another layer of protection, high-end servers, redundant power and network gear Hyper-V Failover Clustering Infrastructure Resiliency / PowerShell LEARN MORE Networking OS, Services, Applications,… WindowsOthers Storage Networking DAL Compute Networking Network Devices Storage Compute DAL http://technet.microsoft.com/en-us/cloud/dal.aspx LEARN MORE Management Stack Compute nodes (Hyper-V hosts) File Servers VMMWSUSOM SMASPF DPM/


Levi Garner. Topics  Computer Storage DevicesStorage Media and Storage Devices  Memory and Storage.

Levi Garner Topics  Computer Storage DevicesStorage Media and Storage Devices  Memory and Storage Understanding Computer Storage  Objectives  Explain the need for storage devices  Distinguish memory and storage  Distinguish storage devices and media. Computer Storage DevicesStorage devices  Components that retain data.  Without storage devices you would re-create data every time you wanted to use it. Files  File  A collection of related information or codes.  Document  The most common file/


Microsoft Office 2010 Introduction to Computers and How to Purchase Computers and Mobile Devices.

storage device that plugs into a USB port on a computer or mobile device An ExpressCard module is a removable device mobile device that fits in an ExpressCard slot Microsoft Office 2010: Introduction to Computers24 Assignment Create a poster identifying the four functions of a computer – Input (show 3 input devices) – Process (show 3 components of processing) – Output (show 3 output devices) – Storage (show 3 storage devices) Microsoft Office 2010: Introduction to Computers25 Storage Devices Cloud storage/


HARDWARE PARTS WITH ALL DETAILS By GHANSHYAMSINH DABHI COMPUTER INTRODUCTION.

HARDWARE PARTS WITH ALL DETAILS By GHANSHYAMSINH DABHI COMPUTER INTRODUCTION Computer Components Processor(s) CPU (Central Processing Unit) Input devices Clickers, keyboards, etc. Output devices Speakers, Printers, etc. Memory RAM (Random Access Memory) Storage devices Hard drive, USB Drive, DVD Recorders What Makes up a Computer? RAM (Temporary Storage) CPU (Central Processing Unit) Video Card (Quality of Graphics) Sound Card (Quality of Sound) Network Card (Connection) Mother Board (Printed Circuit Board/


Top 4 1GB SDHC Memory Card The best memory card saves your favorite moments, emotions and precious memories of your life. It’s not just a storage device,

Card The best memory card saves your favorite moments, emotions and precious memories of your life. It’s not just a storage device, that connect to you with your memories. The SD/SDHC memory cards are/ Estone memory card has high speed for copying and downloading. And It Works for cameras, camcorders, computers, car readers and other SD compatible devices.  Weight: 2g  Storage Temperature: 40F-185F.  Storage capacity: 1GB  Transmission frequency: 25MHz maximum  Transmission speed: Read, 10m/s W, 2-3MB/


Computer Hardware and Software Jack G. Zheng May 13 th 2008 MIS XLM.A.

to the OS –More and more of them are becoming part of OS now Some types –Anti-virus: Norton, McAfee –Uninstaller –Disk optimization software –Crash-proof software –System monitoring, CD/DVD Writing, disk simulation, … Question Are the following products software? What types are they? –Open officeOpen office –SkypeSkype –SimsSims –PartitionMagicPartitionMagic –VMwareVMware Hardware Physical computing devices Output Storage InputProcessing Connection Device and Interface Communication Common Input/


James A. Senn’s Information Technology, 3rd Edition

(IDE): A standard electronic interface used between the bus or data path on a computer system board and the computer’s disk storage devices. Small Computer System Interface (SCSI): A device created to speed the transfer of data between hard disks and other peripherals. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall Storage Hard Disk Disk Controller Interfaces Universal Service Bus (USB): A recent addition to PCs/


Computers Are Your Future Eleventh Edition

as Prentice Hall * * 07/16/96 Objectives Describe solid-state storage devices and compare them with other types of storage devices. Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall * Input Devices: Giving Commands * 07/16/96 Input Devices: Giving Commands Input is any data or instructions that are entered into a computer. An input device is a type of hardware that gives users the ability to enter data and/


Essential Introduction to Computers

basic operations compromise the information processing cycle Microsoft Office 2007: Introductory Concepts and Techniques What are the Components of a Computer? The six primary components of a computer are input devices, the processor (control unit and arithmetic/logic unit), memory, output devices, storage devices, and communications devices The processor, memory, and storage devices are housed in a box-like case called the system unit Microsoft Office 2007: Introductory Concepts and Techniques/


Computers Are Your Future

signal corresponding to a 1. © 200 Prentice-Hall, Inc The Storage Hierarchy The three levels of storage hierarchy are: Online storage – Also called primary storage, it is made up of the storage devices that are actively available to the computer system. User action is not required. Near-online storage – Also called secondary storage, it is not readily available to the computer system. The user performs an action, such as inserting a disk/


Chapter 2 Computer Hardware

hold data Figure 2-21 Chapter 2: Computer Hardware Storage Devices Storage Basics Magnetic Disk and Tape Technology CD, DVD, and Blu-ray Technology Solid State Storage Storage Wrap-up Chapter 2: Computer Hardware Question 022300 Storage devices have varying levels of versatility, durability, speed, and capacity. For a student who owns a computer, but sometimes needs to use computers in the school lab, which storage device is most versatile? A. Hard disk drive/


Chapter 2 Computer Hardware

ROM and EEPROM Figure 2-24 Chapter 2: Computer Hardware Section C: Storage Devices Storage Basics Magnetic Storage Technology Optical Storage Technology Solid State Storage Technology Storage Wrap-up Chapter 2: Computer Hardware Question 022300 Storage devices have varying levels of versatility, durability, speed, and capacity. For a student who owns a computer, but sometimes needs to use computers in the school lab, which storage device is most versatile? A. Hard disk drive B. CD-R/


Computer Hardware Chapter 2. 2 Chapter 2: Computer Hardware2 Chapter Contents  Section A: Personal Computer Basics  Section B: Microprocessors and Memory.

 Section C: Storage Devices  Section D: Input and Output Devices  Section E: Hardware Security 2 SECTION A Chapter 2: Computer Hardware3 Personal Computer Basics  Personal Computer Systems  Desktop and Portable Computers  Home, Media, Game, and Small Business Systems  Buying Computer System Components 2 Chapter 2: Computer Hardware4 Personal Computer Systems 2 Chapter 2: Computer Hardware5 Desktop and Portable Computers  The term form factor refers to the size and dimensions of a component, such/


Computers and Computer Systems – Lesson1

, you should be able to: Understand the importance of computers Define computers and computer systems Classify computers Identify system components Identify types of storage devices Care for storage media Explore computers in your future L1: Computer and Computer Systems Words to Know Arithmetic/logic unit (ALU) Central processing unit (CPU) Circuit board Computer Control unit Data Hard disk Hardware Information Memory Mobile device L1: Computer and Computer Systems Cont. Words to Know Motherboard Notebook/


Computer Basics.

all the physical components of a computer. It includes all input devices, processing devices, storage devices, and output devices. The keyboard, mouse, motherboard, monitor, hard disk, cables, and printer are all examples of hardware. You use hardware to provide input to a computer and also to get/specific tasks. RAM is volatile, which means it is available only while the computer is turned on. The contents of RAM must be copied to a storage device if you want to save the data. Memory Type 2: ROM Read only /


Hardware. Basic Computer System Central Processing Unit Input Devices Output Devices Backing Storage Devices.

data when in use –ROM stores essential programs and data permanently Input devices Input devices –a way of getting data into the computer Output devices Output devices –so the computer can show us what it has done Backing storage devices Backing storage devices –to store programs and data when not in use Central Processing Unit Input Device Output Device Backing Storage memory processor Memory Central Processing Unit Memory Processor RAMROM RAM is random access/


 Input Devices Input Devices  Output Devices Output Devices  BIOS BIOS  Input Input  Output Output  Storage Devices Storage Devices  Sequential.

(words, numbers, images, or sounds) that the computer converts to meaningful information ◦ Software – Programs transferred from storage devices to the computer’s memory ◦ Commands – Instructions that tell the computer what to do ◦ Responses – Prompts requiring user feedback Input device captures information and translates it into a form that can be processed and used by other parts of your computer.  Keyboards  Pointing devices  Game controllers  Scanners  Styluses  Microphones  Digital cameras/


Microsoft Office 2010 Introduction to Computers and How to Purchase Computers and Mobile Devices.

processing cycle Microsoft Office 2010: Introduction to Computers6 The Components of a Computer The six primary components of a computer are input devices, the processor (control unit and arithmetic/logic unit), memory, output devices, storage devices, and communications devices The processor, memory, and storage devices are housed in a box-like case called the system unit A peripheral is a device that connects to the system unit and is controlled by the/


1 Hardware.

Capacity Primary Storage Secondary Storage Computer Memory – Memory Capacity Hierarchy Bit Byte Kilobyte Megabyte Gigabyte Computer Memory – Memory Capacity Hierarchy Terabyte Petabyte Exabyte Zettabyte Computer Memory – Primary Storage Primary Memory (aka Main Memory) Four Main Types of Primary Storage Register Memory Cache Memory Random Access Memory (RAM) Read-Only Memory (ROM) Computer Memory – Secondary Storage Magnetic Tape Magnetic Discs Solid State Drives (SSD) Optical Storage Devices Flash Memory/


Hardware and Software Basics

a microprocessor Memory (RAM) Storage Devices Input Devices Output Devices Computer Hardware Central Processing Unit - also called “The Chip”, a CPU, a processor or a microprocessor Memory (RAM) Storage Devices Input Devices Output Devices Computer Hardware Central Processing Unit - also called “The Chip”, a CPU, a processor or a microprocessor Memory (RAM) Storage Devices Input Devices Output Devices CPU Types CPU or microprocessor is often described as the brain of a computer. CPU is an integrated/


Computer components Skills: none

presentation, the PowerPoint program and the slide data must be in memory right now. Storage devices (programs and data) What is in the storage of my computer right now? CPU Input devices Memory (programs and data) Output Devices Storage devices (programs and data) What is in the storage of my computer right now? CPU Input devices Memory (programs and data) Output Devices The PowerPoint program and PowerPoint slides for this presentation would be in/


Why do we need to learn about computers? Hardware & Software Windows95 Desktop - GUI? Mice? Internet Explorer & Netscape Microsoft Applications: –Excel.

. GUI - Graphical User Interface Memory is Electronic while Storage is Physical. Use memory to to help run the computer resources, use storage to save programs and data for future use. ROM vs. RAM –ROM - holds initial instructions, cannot be change –RAM - where programs reside when in use, temporary, WANT MORE! Three main types of storage: Floppy Disks: 3 1/2 and 5 1/4 Hard/


Adapted from James A. Senn’s Information Technology, 3rd Edition

standard electronic interface used between the bus or data path on a computer system board and the computer’s disk storage devices – ANSI name for IDE is ATA. Small Computer System Interface (SCSI): A device created to speed the transfer of data between hard disks and other peripherals – (40MB/s) Adapted from Pearson Prentice Hall Storage Hard Disk Disk Controller Interfaces Universal Service Bus (USB): A recent addition/


Chapter 2 Computer Hardware.

hold data Figure 2-20 Chapter 2: Computer Hardware Storage Devices Storage Basics Magnetic Disk and Tape Technology CD, DVD, and Blu-ray Technology Solid State Storage Storage Wrap-up Chapter 2: Computer Hardware Question 022300 Storage devices have varying levels of versatility, durability, speed, and capacity. For a student who owns a computer, but sometimes needs to use computers in the school lab, which storage device is most versatile? A. Hard disk drive/


CHAPTER 1 INTRODUCTION TO COMPUTER SYSTEM

Devices Categories of Computers and Computer Systems Computer Software Programming Languange Computer Hardware and Information Technology Infrastructure Components of IT infrastructure consist of software, data, and networks – require computer hardware for their storage or operation. The Computer System Computer system consists of (see Figure 0.1): central processing unit (CPU) primary storage secondary storage input devices output devices Communications devices. Figure 0.1: Hardware Component of Computer/


What is it? CLOUD COMPUTING.  Connects to the cloud via the Internet  Does computing tasks, or  Runs applications, or  Stores Data THE AVERAGE CLOUD.

http://searchcloudcomputing.techtarget.com/defini tion/Infrastructure-as-a-Service-IaaS TYPES OF SERVICE WHY THE CLOUD?  Can be less expensive compared to buying software and hardware  Can be used from any computer or device with an Internet connection  The device does not need as large of an internal storage system  Compatible with most computers and operating systems  Updates occur across the service ADVANTAGES  Security Issues  Terms/


A Closer Look at Hardware and Software

gigahertz (GHz) Higher clock speed means more instructions can be processed per second than the same CPU with a lower clock speed Other factors can affect the overall processing speed of a computer Number of cores Amount of memory Speed of external storage devices CGS1060 Introduction to Computers - Dr. Thomas Nedorost Processing Hardware and Other Hardware Inside the System Unit The Graphics Processing Unit (GPU) Takes care/


Introduction to Computers Section 5B. home Two Ways to Measure Storage Device Performance Average Access Time Data Transfer Rate.

Manufacturer’s Web site Computer-related magazines home File or Data Compression Technology for making files smaller to free up storage space home File Compression Software PKZIP and WinZip: Windows-based PC’s StuffIT: Macintosh home Hard Disk Compression Software DriveSpace home Data Transfer Rate How long it takes for one device to transfer data to another device Measured in units of data per second/


Parts of a Computer.

disk, CD-ROM, floppy disk, and DVD-ROM. Storage devices can be divided into two types, internal storage devices and external storage devices. Hard disk A magnetic disk that is usually the main storage device on most computers. It can be an external or an internal device. Floppy Disk A portable storage device that allows you to store a small amount of data. A disadvantage of this disk is that it can be easily/


Storing Data. Memory vs. Storage Storage devices are like file drawers, in that they hold programs and data. Programs and data are stored in units called.

expensive. Storage Hierarchy Storage devices fit into one of three locations in the storage hierarchy. They are differentiated by their availability of the data they contain. 1. Online storage – primary storage. It consists of the storage devices that are actively available to the computer system and do not require any action on the part of the user. The computer’s hard disk is a personal computer’s online storage system. 2. Near-Online storage – secondary storage that’s/


PC Hardware Grade 9 The difference between hardware and software.

the four primary functions of a computer (discussed earlier): Input devices Output devices Processing devices Storage devices A device may fit in more than one category. RAM is memory used to store data while processing it. Thus you might label the RAM a storage device or processing device because it is used both during storage and processing of information. Sample Classification How are humans like a computer? Input devices? Output devices? Processing devices? Storage devices? How are humans like/


3.1 Storage devices and media

Is volatile – means data will be lost if computer is turned off Non-volatile - Means data will not be lost of computer is turned off. Storage device – reads the data from the storage medium 3.1 Storage devices and media Storage Media & Devices Storage medium is the name given to the device that actually holds the data Storage device – reads the data from the storage medium Sometimes the storage medium is fixed (permanent) i.e. magnetic/


Computer Literacy BASICS: A Comprehensive Guide to IC 3, 5 th Edition Lesson 5 Computer Hardware 1 Morrison / Wells / Ruffolo.

Morrison / Wells / RuffoloCLB: A Comp Guide to IC 3 5E Summary (continued) Storage technology refers to a storage device and the media it uses. Storage technologies include magnetic, optical, and solid-state technologies. Hard drives are the main storage devices in a computer. Most use magnetic storage technology to retain data. Because hard drives consist of platters that rotate as a read/write head moves to save or retrieve/


Cellular Networks and Mobile Computing COMS 6998-10, Spring 2013 Instructor: Li Erran Li

internet connection through a wired link (miniUSB cable) Instrumentation to measure CPU, storage, memory, n/w utilization Setup not typical but allows running what-if scenarios with storage devices and networks of different performance characteristics Requirements beyond stock Android 2/19/13 Cellular Networks and Mobile Computing (COMS 6998-10) Courtesy: Nitin Agrawal et al. Apps and Experiments Performed WebBench Browser Visits 50 websites Based/


Computer Concepts 2013 Chapter 2 Computer Hardware.

 Section C: Storage Devices  Section D: Input and Output Devices  Section E: Hardware Security Chapter 2: Computer Hardware2 2 Section A: Personal Computer Basics  Personal Computer Systems  Desktop and Portable Computers  Home, Game, and Small Business Systems  Buying a Computer  Handheld Computers Chapter 2: Computer Hardware3 2 Personal Computer Systems Chapter 2: Computer Hardware4 2 Desktop and Portable Computers  The term form factor refers to the size and dimensions of a component, such/


Computer Concepts 2012 Chapter 2 Computer Hardware.

it into RAM 2 SECTION C Chapter 2: Computer Hardware21 Storage DevicesStorage Basics  Magnetic Disk and Tape Technology  CD, DVD, and Blu-ray Technology  Solid State StorageStorage Wrap-up 2 Question  022300 Storage devices have varying levels of versatility, durability, speed, and capacity. For a student who owns a computer, but sometimes needs to use computers in the school lab, which storage device is most versatile? –A. Hard disk drive –B/


Cellular Networks and Mobile Computing COMS 6998-11, Fall 2012 Instructor: Li Erran Li

internet connection through a wired link (miniUSB cable) Instrumentation to measure CPU, storage, memory, n/w utilization Setup not typical but allows running what-if scenarios with storage devices and networks of different performance characteristics Requirements beyond stock Android 10/16/12 Cellular Networks and Mobile Computing (COMS 6998-11) Courtesy: Nitin Agrawal et al. Apps and Experiments Performed WebBench Browser Visits 50 websites Based/


Ads by Google