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: Assignmen t Marks Effort 1 /39 E 2 /40 E 3 /61 E 4 /60 E 5 /65 E 6 /75 E 7 /89 E 8 /111 E 9 /135 E Y10 ICT Homework 2011 – 2012 Term 1a Name: Class: Teacher:

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Assignment Marks Effort1 /39 E2 /40 E3 /61 E4 /60 E5 /65 E6 /75 E7 /89 E8 /111 E9 /135 E

Y10 ICT Homework2011 – 2012

Term 1a

Name: Class: 

Teacher:

Name:Class:

:

IntroductionWelcome to the iGCSE ICT course. You will have 4 lessons per week and are expected to

complete 30 – 40 minutes per night homework. Homework is a vital part of this course and it

is important that you ensure you put in the right amount of time and effort, in order to make

sure you get the best grade possible in your exams.

The written theory exam is 2 hours long and covers a wide range of topics. Questions range

from simple true/false ones, to ones requiring long, extended answers.

Like any other IGCSE subject, ICT theory requires you to learn the facts and understand

the principles. There is no shortcut... you will have to WORK HARD and COMPLETE YOUR

HOMEWORK! These homework assignments will help you to gain the knowledge and

understanding required.

This homework book contains all the homework assignments you will be asked to complete

in ICT in the first part of Term 1. Each assignment is intended to take you around two hours

to complete, and this time will include time spent researching and reading the material you

will need to complete the assignment properly. Whenever you are tempted to skip on the

research & reading, remember: your answers will show whether or not you have

completed the research – and so will your end of unit exams!

Suggested materials and sites for your research include:

Your text books & the school library

y10ict.wikispaces.com/

www.teach-ict.com/gcse_new.html

www.teach-ict.com/gcse/gcse_topics.html

www.igcseict.info/theory/index.html

igcseict.net/

gcse.com/

ICT Dictionary at http://www.teach-ict.com/glossary/A.html

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Assignment 1

Components of a Computer system1. Using the following diagram write the correct word from the list below in each box to

indicate the three stages of data processing.

PROCESSING DATA INFORMATION

2. Complete the following sentence using the words listed below.

Information data processed context

Raw _____________is _____________ to provide information.

3. If you buy a CD with a computer game on it, have you bought hardware or software?

________________

4. Here are some parts of a computer system. You have to say whether they are hardware

or software by filling in the table.

Item Hardware or software?

Floppy disk drive

DVD film

Blank CD

Windows XP

Scanner

Microsoft Office

Digital camera

CPU

Norton Anti-Virus

5. There are two parts to a useful computer system: hardware and software. Explain the

differences between hardware and software, giving examples of each.

________________________________________________________________________

________________________________________________________________________

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________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

6. Name the three main components of central processing unit (CPU).Component 1____________________________Component 2____________________________Component 3____________________________

7. Give a brief definition of each of the following terms:

1) Backing

Storage_________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

2) Input device____________________________________________________________

______________________________________________________________________

3) Outputdevice___________________________________________________________

______________________________________________________________________

8. Explain the difference between backing storage and memory.

_________________________________________________________________________

_________________________________________________________________________

9. Write down two tasks that your operating system performs.

Task 1____________________________________________________________________

_________________________________________________________________________

Task 2____________________________________________________________________

_________________________________________________________________________

10. The three screens below show different types of users of user interface. Name each type of

interface, then briefly state an advantage and a disadvantage for each one.

Name________________________________________________________________________

Advantage____________________________________________________________________

Disadvantage__________________________________________________________________

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Name________________________________________________________________________

Advantage____________________________________________________________________

Disadvantage__________________________________________________________________

Name________________________________________________________________________

Advantage____________________________________________________________________

Disadvantage__________________________________________________________________

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Assignment 2

Components of a Computer system

Which User Interface would be the most appropriate for the following situations?

Choose from: Command-line drive, Menu, G.U.I.

A hotel reservations system

An expert programmer

A school child wanting to open a word processing package

A mobile telephone

A P.D.A with a cut down version of office softwareA large company network administratorSomeone wanting to use the Internet

A cash-point machine

1. Explain in your own words what the term ‘user interface’ means

2. What are the three main types of user interface called?

3. Explain what you need to do to use a command-line driven U.I.

4. Explain What D.O.S. means

5. List the disadvantages of using a command-line driven U.I.

6. Explain how a menu U.I. works

7. List the advantages of using a menu driven U.I.

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8. List the disadvantages of using a menu driven U.I.

9. Explain how a menu G.U.I. works

Copy the sentences below and complete the blanks using words from the list.

You should use each word only once.

DIRECTORY INTERFACE OPTIONSMINIMAL QUICKER BEGINNERSOPERATING INSTRUCTIONS THREEPOINTERS COMMAND PROCESSINGMENU SLOW MEMORYMOUSE GRAPHICAL INTERACT

An is a way to interact with something. For example, your television remote control is an interface to your television.

We needed a way to with our computers and so a user interface was developed to enable us to communicate with the System.

There are main types of user interface, each of which has a specific use.

A Driven Interface presents the user with a blank screen. The computer displays a prompt and the user types in a command which is often abbreviated e.g DIR.W to get a list of all the files in a .

The user presses enter and the Operating System carries out the instruction. Once the

user has learned all the commands, the system is to operate than the other two

systems, but it can take a long time to learn all the commands that you are likely to need.

This type of interface uses less than the others. MS-DOS is an example of a

Command-Driven Interface.

With a Driven Interface, the user completes their tasks by choosing

from a simple menu. Often, one menu will expand to show a

further menu which provides extra options.

Part of the screen may provide for the users to read,

followed by a numbered list of options from which they can

choose. The user selects the option they want with a mouse or

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entering the correct number.

Menu Driven Interfaces can be easy to use, no commands need to be learned. They offer

a step-by-step set of options until the task is completed. Users can learn their way around

with - training. However, they can be to use, sometimes it is

necessary to go through many different menu screens until you reach the option you need.

The user needs to have an idea of where to start looking, otherwise it can be frustrating for

them as they try to search for the menu option they need.

The most commonly used type of interface is a User Interface or GUI. The

user chooses an option usually by pointing a at an icon representing what

they require, e.g. the printer icon to print a document. GUIs are also known as a WIMP

interface – Windows, Icons, Menus and

GUIs are much easier to use for , they require very little training and are fairly

intuitive. They enable you to easily exchange information between software using cut and

paste or ‘drag and drop’.

Users do not have to learn complicated commands. However, GUIs do need a lot more

memory and power than the other two types of user interface. They can be

irritating to experienced users when simple tasks require a number of operations.

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Assignment 3

Hardware and Software

For each of the items listed below say whether it is hardware or software (H or S will do).

KeyboardFloppy diskVisual display unitMouse Word processorJoystickSpreadsheetDatabaseMicrosoft WindowsMagnetic stripe readerHard disk Digital cameraMS PublisherLaser printerBarcode reader

Place the following words in the sentences below. Programs hardware barcode readers mouse software keyboard

1. A computer system consists of two parts: and

2. Software is the name given to the which enable a computer to perform a

useful task.

3. The commonest input device, which comes with all computers is the

4. A is used to move the pointer around the screen and to make selections.

5. are used in supermarkets for recording the details of goods as they are

passed over a laser scanner.

6. Are the following statements true or false?

a. The CPU controls all other parts of the computer

b. RAM is used for storing the start-up instructions on the computer

c. A peripheral is always external

7. Define the following, giving examples:

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(i) operating system software

(ii) application software

8. Compare and contrast

(i) hardware and software

(ii) public domain software, shareware and the software sold in a computer

shop.

9. List four commonly used types of microcomputer application programs other than spreadsheet, database and word processing programs.

10. The Macintosh was first to provide a consistent graphics based user interface. What are the advantages of a graphics based user interface?

11. There are a number of different kinds of software piracy. These include:

extra copies of a program being made within an organization or among friends. software downloaded by users via a modem from a electronic bulletin board.

Answer the following questions. Justify your answers where necessary.

(a) Give a simple definition of the term “software piracy”.

(b) How does a copyright infringement hurt both the software manufacturer and users?

(c) Is it legal to run a program on your computer from a network server? Explain.

(d) Give two other kinds of software piracy.

Computer control

Complete the blanks using words from the list.

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You should use each word only once.

data external analogue physical

processes output sensors digitalhardware control analogue-to-digital monitor(a) Computer control is the use of a computer to _____________ and control an

__________ process.

(b) To control any process a computer needs input from ___________ which provide

it with _________ about the state of the process that it is controlling.

(c) Sensors provide data about a ___________ quantity. The output signal from most

sensors is in ___________ form.

(d) Computers cannot process the analogue data provided by a sensor, it must first

be converted into ____________ using an _______________ converter.

(e) The computer ___________ the data provided by the sensors by using a

____________ program.

(f) The control program instructs the computer how to respond to the input from the

sensors. If the process needs to be modified in any way the computer sends an

________ signal to the __________ which is under its control.

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Assignment 4

Input and Output devices

1. Explain the difference between a mouse and trackball.

________________________________________________________________

________________________________________________________________

2. Explain the difference between an impact printer and a non-impact printer.

________________________________________________________________

________________________________________________________________

3. Give an example of an impact printer and a non-impact printer.

________________________________________________________________

________________________________________________________________

4. What are the elements of a graphical user interface?

________________________________________________________________

________________________________________________________________

5. Name and describe two different types of monitor. Give one advantage and one

disadvantage for each.

________________________________________________________________

________________________________________________________________

________________________________________________________________

6. When purchasing a printer make a list of factors that should be considered.

________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

7. Most laptop computers use LCD screens. Why is this so?

________________________________________________________________

________________________________________________________________

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8. Are there any disadvantages of LCD screens?

________________________________________________________________

________________________________________________________________

________________________________________________________________

9. Two monitor standards are VGA and SVGA. What do these acronyms stand

for and what do they mean?

________________________________________________________________

________________________________________________________________

________________________________________________________________

________________________________________________________________

10. Explain how an inkjet printer works.

________________________________________________________________

________________________________________________________________

________________________________________________________________

11. Explain how a laser printer works.

________________________________________________________________

________________________________________________________________

________________________________________________________________

Select the alternative that correctly answers the following questions.

12. Which of the following is NOT an input device?(a) Keyboard(b) Mouse(c) Floppy Disk(d) Microphone

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13. A computer mouse has a mouse ball that drives two rollers. The purpose of these rollers is to:

(a) Control x and y movement.(b) Stop the ball from dropping out.(c) Self clean the mouse ball.(d) Connect to each of the mouse buttons.

14. What type of input device would be most appropriate for a visitor information centre at a zoo, where many people that may have little or no computer experience would use it?

(a) Mouse(b) Keyboard(c) Touch screen(d) Touch pad

15. Of the following, what is the most appropriate type of input device that is used with a laptop computer?

(a) Mouse(b) Trackball(c) Touchpad(d) Joystick

16. A pointing device that is like a small rod that has a light detector and emits signals is called:

(a) Light pen(b) Touch screen(c) Puck(d) Pen input device

17. OCR stands for:(a) Optical Character Recognition(b) Optical Code Reader(c) Optical Code Radar(d) Optical Computer Reader

18. Which of the following is not a type of computer mouse?(a) Intellimouse(b) Cordless(c) USB(d) Footmouse

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19. Credit cards contain information the back that is read when the card is placed into a card reader, such as an ATM. How is the information on the stripe stored?

(a) Dark ink(b) Magnetically(c) Binary(d) Bar Coded

20. Game controllers are specialised input devices used for playing games. Which of the following is not classified as game controller input device?

(a) Joystick(b) Steering wheel(c) Wand(d) Game Pad

21. You would most likely find a touchpad on:(a) Laptop(b) Graphics tablet(c) Cordless mouse(d) Desktop computer

True / False

1 A graphics tablet is a flat pad, which you can write or draw on with a pressure sensitive stylus.

2 Voice recognition is a technique that converts digital signals in digital data.

3 On a standard keyboard there are four main areas.

4 When examining the characteristics of a scanner, resolution refers to the degree of detail that the scanner produces.

5 A scanner operates by giving a positive electrical charge to the surface. The photoconductive surface is then exposed to the image of a document.

6 MIDI is the computer language that is used to communicate between computers and digital musical instruments. 

7 Eye tracking is a mounted camera-like device that translates eye movements and eye stares into directing the on-screen mouse.

8 An optical mouse uses the distance and the speed of the rollers inside the mouse to determine how far the mouse cursor moves on the screen.

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9 The method used by banks to read and recognize cheques and other paper-based documents is called MICR.

10 Sensors can be used as input devices in automated systems.

Match the Word to the Statement

PDA qwerty

joystick data logger

trackball wand

flatbed OMR

1_________________ is name given to the most common type of keyboard based on the layout of the keys.

2__________________ is a hand held device used for reading barcodes.

3__________________ is a small, handheld computer that accepts input written on-screen with a stylus, designed to keep phone directories and calendars and to provide calculating capabilities.

4__________________ is an alternative pointing device to a keyboard; used primarily for games and computer-aided designs.

5__________________ is a type of scanner that allows the user to put a sheet of paper or book onto the glass of the scanner.

6__________________ are remote input devices, that store data received from sensors that can then be input into a computer at another time or place in the offline systems.

7__________________ is a method of entering data into a computer by scanning pencil or pen marks, made in pre-defined positions on paper forms as responses to questions or tick list prompts.

8__________________ is an input device, similar to the mouse, that moves the mouse pointer on-screen, frequently attached to or built into the keyboard.

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Assignment 5

Input and Output devices

1. Where does the name ‘QWERTY’ Keyboard come from?

2. Why do you think the QWERTY keyboard is the most popular method of data entry?

3. Who might make use of a concept keyboard?

4. What are the benefits of using a concept keyboard?

5. Explain why a mouse often called a pointing device

6. Describe the difference between a mouse and a tracker ball?

7. Which type of input device would you choose if you were going to play a ‘shoot ‘em up’

computer game?

8. Who is likely to use a Graphics Tablet and why?

9. Explain briefly how scanners work

10. Explain why automated input devices allow more accurate input of data than manual input devices

11.a What do the initials MICR stand for?

11.b Where are you most likely to come across this type of input device?

12. Explain how OMR is used to help mark test papers

13a. Why do Credit cards have a magnetic stripe on the back?

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13b. What is used to read the information from the magnetic stripe?

13c. What are some of the problems with this method of data storage?

14 a. What device is used to capture the barcodes on products?

14 b. Explain why the price isn’t stored on the barcode.

15. Which input device would you suggest for the following situations:(6 marks)

Writing a story for homework

Drawing a cartoon

Checking your bank balance at

the bank

Storing information on your

Credit card

Changing the text from a page into digital format so you can edit it.Storing information on bank

cheques.

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Manual Input Devices

Complete the table below by inserting pictures and writing a short

description about these input devices.

KeyboardsA Keyboard is: The keyboard is the most widely used input device and is used to enter data  or commands to the computer.  It has a set of alphabet keys, a set of digit keys, and various function keys.The layout of the letters on a keyboard is standard across many countries and is called a QWERTY keyboard.  The name comes from the first six keys on the top row of the alphabetic characters.

1 mark A concept keyboard is .... (2 marks)

Find an image of a concept keyboard describe it and complete the missing words

Pointing Devices

(1 mark)A mouse is the most common pointing device that you will come across.  It enables you to control the movement and position of the on-screen cursor by moving it around on the desk. You can select objects on the screen, hold the left mouse button down and drag them to where you want them. You can also access menus by pointing to them with the curser and clicking the mouse button to select the option you want.

A tracker ball, is like an upside down mouse with the ball on top.  Turning the ball with your hand moves the pointer on the screen.  It has buttons like a standard mouse, but requires very little space to operate and is often used in conjunction with computer aided design.  You will often find a small tracker ball built into laptop computers in place of the conventional mouse.

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1 mark A Joystick is (2 marks)

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Multimedia Device1 mark A digital camera is (2 marks)

1 mark A microphone allows voice or sounds to be recorded directly onto the computer.

Scanners1 mark A scanner is another way in which we can capture still

images or text to be stored and used on a computer. 

The scanner moves slowly over the surface of the picture or object to be scanned and shines a light onto the paper.   The colours of the reflected light are detected and digitised to build up a digital image.

There are two main types of scanner:

1. ………………………………………………….

2………………………………………………….

(2 marks)Graphics Tablets1 mark A Graphics Tablet …..(2 marks)

Touch Screens

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1 mark A Touch Screen………(2 marks)

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Find an image for each of the above peripherals

Automatic Input Devices – Direct Data Entry

Complete the table below by inserting pictures and writing a short description about these input devices.

1 mark Magnetic Ink Character Recognition….(2 marks)

1 mark Optical Character Recognition .... (2 marks)

1 mark Optical Mark Reader.... (2 marks)

1 mark Magnetic Stripe Readers …(2 marks)

.

1 mark Barcode Readers….(2 marks)

Assignment 6

Input and Output devices

Select the alternative that correctly answers the following questions.

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1 When discussing computer monitors LCD stands for:(a) Low Crystal Display(b) Liquid Crystal Display(c) Low Computer Display(d) Laser Computer Display

2 A dot matrix printer is classified as what type of printer?(a) Non-impact printer(b) Impact printer(c) Thermal printer(d) Inkjet printer

3 When printing in colour CYMK stands for:(a) Cyan Yellow Mauve Black(b) Colour Your Memory K(c) Cyan Yellow Magenta Black(d) Cyan Yellow Magenta K

4 Plotters are most suitable for:(a) Printing graphics(b) Printing text(c) Printing line drawings(d) Printing bitmaps

5 On a colour monitor each group of phosphor dots on a screen is made up of:(a) A red, blue and green dot(b) Each of the secondary colours(c) A cyan, magenta, yellow and black dot(d) A black dot and a white dot

6 Which of the following is a disadvantage of graphic plotters?(a) Speed(b) Cost(c) Accuracy(d) Printout size

7 A device that is used to print text and images over a telephone line is called:(a) Modem(b) Facsimile(c) Bubblejet(d) Scanner

True / False

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1 Refresh rate is the speed that the monitor redraws images on a screen.

2 Inkjet printers are non-impact printers that spray tiny drops of ink on the page.

3 A thermal printer uses heat to transfer an image onto a surface.

4 A laser printer works by the print head putting a small electrical charge onto a metal drum.

Match the Word to the Statement

e-books thermal wax colour printer

line printer portrait

resolution pixels

laser printer phase change colour printer

1 The number of pixels a monitor can display.

2 This is the page orientation when printed down the page.

3 Uses special ribbons to produce images on glossy paper.

4 A high speed impact printer.

5 Uses coloured wax sticks to produce plain paper prints.

6 Picture elements that are illuminated on a screen.

7 A high speed non-impact printer.

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8 Small computers that allow users to read, save, highlight and add notes.

Complete the blanks using words from the list.

You should use each word only once.

GLASS CARBON SMALLER LASER

INK-JET INSTRUCTIONS TONERS CATHODE

EXPENSIVE OUTPUT DOT-MATRIX ACCURATE

HARD CARTRIDGES RIBBON HEAT

Input devices allow us to enter raw data into a computer. The computer processes the

information and then produces outputs that we can understand using an output device.

MonitorsThese are the most common ____________________device and include desktop

monitors known as ____________________Ray Tube monitors (CRT) and Liquid Crystal

Displays (LCDs).

CRT monitors are large and have a _____________screen and look similar to your TV.

They are easy to keep clean, relatively cheap and are robust. However, they can be

noisy, they produce a lot of ____________________and they take up a lot of room.

LCD monitors are ____________________and lighter than a CRT and also use much

less power. This makes them ideal for where there is a lack of space for example on lap-

top computers. The downside is they are more ____________________than a CRT and

they can be damaged by sharp objects.

PrintersPrinters are useful for creating a ____________________copy of your work. There are

three main types of printer:

Laser printer

Ink-jet printer

Dot-matrix printer

____________________ printers work much like a photocopier: powdered ink is fused

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onto paper by heat and pressure. They produce a very high quality output, are quiet

and fast, although quite expensive to buy.

They use____________________rather than cartridges.

____________________printers are cheaper to buy, offering black and white or colour

printing with reduced levels of quality and speed. The nozzles fire a jet of liquid ink

through tiny holes, hence the name, ‘ink-jet’. The ink is stored in

____________________.

____________________ printers are not so common today. They are comparatively noisy

and low quality but are cheap to run and ideal for____________________copies. They

work by using a set of steel pins which strike an inked ____________________ onto

paper producing a sequence of dots.

PlotterA plotter can be used to produce high quality, ____________________, A3 size or bigger

drawings in colour. They are usually used to create building plans, blue-prints, Computer

Aided Design (CAD) and Computer Aided Manufacture (CAM) applications.

Other output devices

Speakers LCD projectors Output can also be in the form of ____________________ to a device such as a

robot arm.

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Device Situation Used Advantages

Disadvantages

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CRT

Monitor

1 mark 2 marks 2 marks

LCD Monitor 1 mark 2 marks 2 marks

Dot Matrix Printer

1 mark 2 marks 2 marks

Ink Jet Printer 1 mark 2 marks 2 marks

Laser Printer 1 mark 2 marks 2 marks

Graphics Plotter 1 mark 2 marks 2 marks

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Speakers

1 mark 2 marks 2 marks

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Lights 1 mark 2 marks 2 marks

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Assignment 7

Memory and Storage

Complete the blanks using words from the list.

You should use each word only once.

backup tape erased readbacking media compact hard read/write cartridges serial (a) ____________________storage is used to store programs and data when they

are not being used or when a computer is switched off.

(b) Magnetic____________________, floppy disks, and

____________________disks are all types of backing

storage____________________ .

(c) Magnetic tape comes in reels or____________________. It is used to make

____________________copies of programs and data. Magnetic tapes allow

only ____________________access to data.

(d) CD-ROM stands for ____________________ disk ____________________

only memory. A CD-ROM can store approximately four hundred times more data

than an ordinary 3½ inch floppy disk. Data stored on a CD-ROM cannot be

changed or ____________________.

____________________ disks are a special type of compact disk that are

supplied blank and can have data written or ‘burned’ onto them using special

CD drives.

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Storage Device Size Description Advantages DisadvantagesHard Disk 1 mark 1 mark 2 marks 2 marks

Floppy Disk 1 mark 1 mark 2 marks 2 marks

Zip Drive 1 mark 1 mark 2 marks 2 marks

Magnetic tape backup

1 mark 1 mark 2 marks 2 marks

CD-ROM 1 mark 1 mark 2 marks 2 marks

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Storage Device Size Description Advantages DisadvantagesCD-RW 1 mark 1 mark 2 marks 2 marks

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Storage Device Size Description Advantages DisadvantagesDVD 1 mark 1 mark 2 marks 2 marks

DVD-RAM 1 mark 1 mark 2 marks 2 marks

Blu-Ray discs 1 mark 1 mark 2 marks 2 marks

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Storage Device Size Description Advantages DisadvantagesHD DVD Discs 1 mark 1 mark 2 marks 2 marks

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Storage Device Size Description Advantages DisadvantagesFlash Memory 1 mark 1 mark 2 marks 2 marks

Smart Cards 1 mark 1 mark 2 marks 2 marks

USB Memory Stick 1 mark 1 mark 2 marks 2 marks

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Assignment 8

Storage and Access Speeds

Complete the following table:

Storage device

Capacity& what can be stored

Serial / sequential / direct / random

access

Magnetic, Solid State or Optical storage

Fixed hard discs

Portable hard discs

Magnetic tapes

CDs

DVDs

CD ROMDVD ROM

CD RDVD R

CD RWDVD RW

DVD RAM

Blu-ray

Floppy discs

Zip disks

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Storage device

Capacity& what can be stored

Serial / sequential / direct / random

access

Magnetic, Solid State or Optical storage

Solid state backing storage

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Storage device

Capacity& what can be stored

Serial / sequential / direct / random

access

Magnetic, Solid State or Optical storage

Memory sticksPen drives

Flash memory cards

Explain how data is stored on magnetic media. Include in your answer a description of

the difference between data storage on a magnetic tape and on a magnetic disc.

Is a video tape an example of optical, solid state or magnetic storage?

_______________________

Describe how files would be accessed on this kind of device, giving clear examples:

Describe clearly the difference between optical and solid state storage media, giving at

least two examples of each:

Explain how data is stored on optical media. Include in your answer a clear explanation

of why blu-ray discs are able to store much more data than standard optical discs.

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Describe the structure of a solid state storage device such as a memory stick, and

explain why they have an advantage over other (optical & magnetic) media:

Flash memory is non-volatile, like ROM, but can be erased and rewritten, like RAM.

Despite this, computers do not use flash memory as RAM. Explain why not:

How much data can typically be stored on each of the following solid state media:

SD Card: ___________________SDHC Card ___________________

Explain clearly why data access is faster when data is stored on a magnetic hard disc

rather than on a magnetic tape:

The school network holds around 50GB of data, which could, in theory, be backed up

onto blu-ray discs every night. Explain why the network manager chooses to backup

onto magnetic tape instead:

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A teacher decides it might be a good idea to make backup copies of all of her teaching

resources once every month. Describe what is meant by a back up copy and where it

should be stored:

What storage media would you recommend for this teacher? State your choice, and

give a reason for your choice:

A student chooses to back his work up every week. His memory stick holds 512 MB of

data. Why does he choose to back up using his memory stick rather than using a CD-R

which would hold 700Mb of data?

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Assignment 9

Input, output & Storage Devices

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Some students have decided to grow tomatoes in a greenhouse as part of a biology experiment.

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