INFORMATION COMMUNICATIONTECHNOLOGY

Master Kwabena Greenberg

Term 1~ Week 11Specific Objective ~ 2.1.4Specific Objective ~ 2.1.5

Storage Devices

Dual Input and Output Devices

REVIEW

INPUT AND OUTPUT DEVICES
WHAT ARE THEY

OBJECTIVE

List three (3) Storage Devices

Describe and explain why we use storage devices.

List two (2) combination input/output devices.

Know the procedure to correctly attach and remove a storage device.

STORAGE DEVICES

INTRODUCTION

Can you please tell me if they want to save something that they learned in class for another day, how would they go about doing it?

STORAGE DEVICES

Introduce the term storage device and make a relation to a Polly Tank, bucket, water sachet as all ways to hold liquids.

POLYTANK

STORAGE DEVICES

Computer data storage provides one of the core functions of the modern computer, that of information retention.

TYPES OF STORAGE DEVICES

Some of the common Storage Devices:

Hard Drive

DVD Digital Video Disk

CD Compact Disk

Pen Drive

Floppy Diskette

HARD DISK DRIVE (HDD)

Commonly referred to as a hard drive, hard disk or fixed disk drive, is the most popular storage device used within a system unit. When you save a file on a computer it is stored on its' hard disk.

DVD ~ Digital Video Disk

DVD's are a popular optical disc storage media. They are often used as a way to store movies, software, and large amount of data archiving.

DVDs are the same dimensions as compact discs (CDs) but store more than 6x times the data.

COMPACT DISK

A Compact Disc or CD is an optical disc used to store digital data, originally developed for music.

Standard CDs can hold approximately 80 minutes of audio or over 100 mp3 tracks.

PEN DRIVE

Pen Dirve, Jump Drive, Flash Drive, USB flash drive the value is the same they are typically small, lightweight, removable and re-usable storage devices.

PEN DRIVE

USB flash drives offer potential advantages over other portable storage devices, particularly the floppy disk as they are more compact, hold more data, and are more reliable due to their lack of moving parts.

FLOPPY DISK

A floppy disk is a storage device that is composed of a flexible disk encased in a square or rectangular plastic shell.

They have enjoyed many years as a popular means to exchange and store data; however, they have now been superseded by Flash and optical storage devices.

COMPARISON OF
STORAGE DEVICES CAPACITY

Lead a discussion relating the digital storage devices to that of the physical storage devices. Include such points as size, cost, durability, longevity, etc.

INPUT / OUTPUT
DEVICES

LET ME ASK

IS A HARD DRIVE AN

INPUT OR OUTPUT?

HOW ABOUT A PEN DRIVE?

A FLOPPY DRIVE?

INPUT / OUTPUT DEVICES

Input / Output devices are similar in their functions to things we use every day here at school:

Our mouths (eat and talk)

A doorway (enter or exit)

Money (sell or receive a service)

Can you name one?

INPUT / OUTPUT (I/O) DEVICES

The term refers to devices that both send and receive data between computers, such as storage devices, modems and network cards.

It also used as verb; to "perform I/O" is to perform an input or output operation.

TYPES OF INPUT / OUTPUT

Some of the common Input / Output Devices include:

Storage Devices

Modem

Network Interface

MODEM and NETWORK CARDS

Modems is one devices that allows a computer to connect to the internet over a regular phone line.

Network Card, are a piece of computer hardware designed to allow computers to communicate with each other over special wires.

HOW TO USE A
FLOPPY DISK

FLOPY DISK ~ BY THE NUMBERS

Insert the floppy disk into the machines Floppy Disk Drive.

Open the application or windows explorer to access the data stored on the disk.

Perform all functions and then close all windows on the computer.

Wait for the green LED light to go off and stay off.

Press the ejection button slowly and firmly to release the Floppy Disk.

FLOPPY DISK WARNINGS

Floppy disks are not floppy.

Do not bend them.

Keep them in a cool dry place. They don't like the african heat.

Don't get them wet.

They are unpredictable - You won't be able to tell when they'll stop working.

Don't fiddle with it. - "Slider goes back, slider goes spring. Slider goes back, slider goes spring. Slider goes ..."

HOW TO USE A
PEN DRIVE

HOW TO INSERT A PEN DRIVE
BY THE NUMBERS (Part 1 of 3)

Simply remove the cap and plug the flash drive into any free USB port. Ensure it is properly oriented.

Once connected to the computer, a green arrow icon will appear on the TaskBar.

HOW TO INSERT A PEN DRIVE
BY THE NUMBERS (Part 2 of 3)

Double click on My Computer on the desktop and the removable drive should appear in the My Computer window.

HOW TO INSERT A PEN DRIVE
BY THE NUMBERS (Part 3 of 3)

Double click on your removable drive to open.

If a window presents itself asking what you would like to do click Cancel

HOW TO REMOVE A PEN DRIVE
BY THE NUMBERS (Part 1 of 3)

It is important to remove the flash drive correctly so important data is not lost.

Make sure all files located on the flash drive are closed before removing the drive from the computer. (i.e. exit all applications.)

Single Left Click the green arrow in the notification area of the TaskBar.

HOW TO REMOVE A PEN DRIVE
BY THE NUMBERS (Part 2 of 3)

Next SLC on Safely Remove USB Mass Storage Device Drive(G:).

HOW TO REMOVE A PEN DRIVE
BY THE NUMBERS (Part 3 of 3)

A balloon box will appear with a message that it is safe to remove the flash drive.

Now you can unplug the pen-drive from the computer's USB Port.

HOMEWORK

Choose one type of data and describe in an essay form how it moves through the stages to become information. They should reference the input and output devices as discussed in recently lessons.

Type Common Size / Capacities as of 2007Form Factor

Hard DriveDesktop19.3 - 47 GB up to 1.2 TBLaptop320 GBRe-Writable

DVD4.7 8.5 GBWrite Once Read Many

CD650703 MBWrite Once Read Many

Pen Drive16 MB 16 GBRe-Writable

Floppy Diskette1.44 MBRe-Writable