1. MILESTONES IN HARDWARE
Information Systems - Basics of Information
MILESTONES IN HARDWARE

2. Information Systems - Basics of Information
COMPUTER HARDWARE
Computer Hardware, as you know, are the physical components that can be touched and seen. Hardware typically includes Input-output devices, storage devices, processor and communication devices.
Milestones in Hardware
The significant changes which have occurred over time in:
Models/Shapes
It includes
Super Computers
Mainframe Computers
Mini Computers
Micro Computers or Personal Computers
Laptops and Handheld Computers

3. SIZE AND CAPACITY OF I/O DEVICES
Computer generations have witnessed the reduced size, better processor, increased capacity and enhanced capabilities with the passage of every generation. Drastic changes have been seen in input/output devices, processors and storage.
Input and output devices

4. Information Systems - Basics of Information
INTRODUCTION
The Word system finds place in our day to day language and life. We often work on a computer system. Hardware and Software are the two integral parts of a computer system, both are dependent on one another and both have to be compatible to get the best results.
Selection of hardware and software is a tedious and time consuming task, that passes through several steps, which are:
Fixing requirements
Financial aspects
Tender Preparation
Tender invites
Short listing
Delivery
Installation
Evaluation Review

5. www.itlecturenotes.com INPUT DEVICES Optical Character Readers (OCR)
Keyboard
Mouse
Trackball
Joystick
Light Pen
Touch Screen
Track Pad/ Touch Pad
Digitizers
Scanner
Bar Code Readers
Optical Character Readers (OCR)
Optical Mark Readers (OMR)
Magnetic-Ink Character Reader (MICR)
Card Readers
Magnetic Stripe Reader
Smart Card / Chip Reader
Touch Screens
Voice Recognition Systems
Digital Camcorders

6. www.itlecturenotes.com OUTPUT DEVICES Printer Examples Impact Printers
Dot Matrix Printer
Daisy Wheel Printers
Drum Printers
Chain Printers
Non-impact Printers
Inkjet Printers
Page Printers
Laser Printers
Monitor
Printer
Impact Printers
Non-Impact Printers
Projectors
Speakers
Plotters
Headphones
Webcam

7. COMMUNICATION DEVICES
Information Systems - Basics of Information
COMMUNICATION DEVICES
Adapter: It is used to handle the flow of information bits between computers.
NIC- Network Interface Card: It is a piece of computer hardware used for communication over the network.
Switch / Hub: It provides a central connection point for cables from servers, workstations and peripherals.
Repeaters: Repeaters are used to boost the signals. The repeaters amplify the signals received and rebroadcast them.
Bridges: It allow the segmentation of large network into smaller more efficient networks.
Routers: These are intelligent bridges, select the best path to route a message based on the sender and receiving address.
Modem: It is an intermediately equipment capable of transmitting one computer’s information to the other computer.

8. Information Systems - Basics of Information
NEW TRENDS IN STORAGE
Google Drive: It is 30 GB on-line storage and synchronization service provided by Google, which enables its users to use cloud storage, file sharing and collaborative editing.
USB 3.0 flash drives: This version of USB operates up to 5 gigabytes/second, ten times faster than USB 2.0 (480 megabits/second USB 3.0 adds a new transfer mode called super speed, uses two unidirectional data paths- one to receive data and other to transmit.
MOD- Magneto Optical Disc: Optical storage-capable of writing and rewriting data.
USB Hard Drives: These are reliable desktop external hard drives, are so light weight that you can easily take with you wherever you go. These offer basic add on storage to high performance designs.

9. www.itlecturenotes.com PROCESSORS CISC RISC Intel Micro Processor
AMD Processors

10. Thank You