Ict Unit 1 - Topic 1

Front 1

Data/Information

Back 1

Data is raw facts and figures

Information is data which has been processed in some way to give it meaning

Front 2

Quality indicators of data

Back 2

Accuracy

Complete

Relevance

Up to date

Presented effectively

Front 3

Quality indicators of a form

Back 3

Instructions

Title

Space

Text

Logo

Prompt

Front 4

DDE?

Back 4

Direct Data Entry

Front 5

OMR

Back 5

A method of data that scans forms which have been filled in using marks/ticks

Front 6

Advantages of using OMR

Back 6

OMR can speed read large quantities of data by the computer without using the keyboard

Front 7

Disadvantages of using OMR

Back 7

The cost of buying OMR equipment is high

Front 8

OCR?

Back 8

Taking paper based documents and transforming them into editable computer files

Front 9

Advantages of using OCR

Back 9

Large quantities of text can be inputted quickly

Handwriting can be read directly

Front 10

Disadvantages of using OCR

Back 10

Highly accurate systems are expensive

Dirty/marked documents can't be read

Front 11

Where do you use OMR?

Back 11

The national lottery

Multiple choice tests

Front 12

Where do you use OCR?

Back 12

Libraries

The post office

Front 13

Data validation

Back 13

An automatic computer check to ensure that the data entered is sensible and reasonable

Front 14

Check digit?

Back 14

The last digit on a code used to check the other digits are correct

Front 15

Format check?

Back 15

Checks the data follows a certain pattern

Front 16

Length check?

Back 16

Checks the data isn't too short/long

Front 17

Lookup table?

Back 17

Looks up acceptable values in a table

Front 18

Presence check?

Back 18

Checks the data has been entered into a field

Front 19

Range check?

Back 19

Checks that a number is between a lower and upper limit

Front 20

Spell check?

Back 20

Looks up words in a dictionary

Front 21

Type check?

Back 21

Checks if the data is a number or letter

Front 22

Verification

Back 22

Performed to ensure that the data entered exactly matches the original source

Front 23

Double entry?

Back 23

entering the data twice and comparing the copies

Front 24

Proofreading data?

Back 24

Someone checking the data entered against the original document

Front 25

Check digit method?

Back 25

1 List numbers

2 Add weights

3 Multiply the number by the weight

4 Calculate the sum

5 Divide by 11 and calculate remainder

6 Calculate check digit. 11 - remainder

Front 26

Data compression?

Back 26

Used to convert digital data to as small as possible

Front 27

Resolution

Back 27

The electronic pixels

Front 28

DPI?

Back 28

Dots per inch

Front 29

Data portability

Back 29

Being able to transfer data form one system to another

Front 30

CSV files?

Back 30

Comma seperated variables (.csv)

Holds data which is deprecated by commas

Front 31

RTF files?

Back 31

Rich text format (.rtf)

Allows users to transfer data between different applications

Front 32

JPEG files?

Back 32

Joint Photographic Experts Group (.jpeg)

Any graphic image file produced by using a JPEG standard

Front 33

SVG files?

Back 33

Scalable vector graphics (.svg)

Images are scalable and will adjust in size and resolution

Front 34

MPEG files?

Back 34

Moving Picture Experts Group (.mpg)

Any moving picture produced by using an MPEG standard

Front 35

PICT files?

Back 35

(.pict)

Supports high quality images and can be compressed

Front 36

TIFF file?

Back 36

Tagged Image File Format (.tiff)

Graphics file format and stores bitmapped images

Front 37

GIF files?

Back 37

Graphic Interchange Format (.gif)

Supports compressed images, transparency and animation

Front 38

TXT files?

Back 38

Text files (.txt)

A simple text tile which holds letters and numbers

Front 39

ASCII files?

Back 39

American Standard Code for Information Interchange (.asc)

A plain text file which can be read with any text editor

Front 40

MIDI files?

Back 40

Musical Instrument Digital Interface (.midi)

Digital musical instruments are connected as input devices to the computer. They are sound files

Front 41

MP3 files?

Back 41

MPEG 1 - Audio Layer 3 (.mp3)

CD quality compressed recordings that are about ten times smaller than the CD

Front 42

MP4 files?

Back 42

MPEG 1 - Audio Layer 4 (.mp4)

An acronym for MPEG-4 (moving picture experts group). Used to compress video files.

Front 43

PDF files?

Back 43

Portable Document Format (.pdf)

Documents that can be viewed and proofed without the same software installed

Front 44

HTML files?

Back 44

Hypertext Markup Language (.html)

The language used to create webpages

Front 45

ZIP files?

Back 45

(.zip)

A popular data compression format. Files that have been compressed with the ZIP format are called ZIP files

Front 46

Word Document files?

Back 46

(.doc)

Used for saving Microsoft Word documents

Front 47

Excel Spreadsheet files?

Back 47

(.xls)

Used for saving Microsoft Excel Spreadsheets

Front 48

PowerPoint Presentation files?

Back 48

(.ppt)

Used for saving Microsoft PowerPoint Presentations

Front 49

Bitmap files?

Back 49

(.bmp)

Used for saving a bitmap image file

Front 50

Wave files?

Back 50

(.wav)

Used for saving a Windows Sound file

Front 51

Audio Video Interleave files?

Back 51

(.avi)

A common Windows video file.