An ICT system diagram A system is an assembly of parts that together make a whole. ICT systems are...
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Transcript of An ICT system diagram A system is an assembly of parts that together make a whole. ICT systems are...
An ICT system diagramA system is an assembly of parts that together make a whole. ICT systems are made up of some or all of
the parts shown in the diagram. Various devices are used for input, processing, output, and communication.
ICT systems can be made of some or all of the parts shown.
Input devices, processing and output devices
Input devices allow to enter raw data into a computer. The computer processes the data and then produces
outputs that we can understand by using an output device. Input devices can be manual or automatic.
The processing is mainly handled by the Central Processing Unit (CPU).
Manual input devicesThe most common manual input devices are keyboards and mouses. Let’s discover the other manual input devices ...
The teacher divides the students in 7 different teams called: (6 groups with 4 students and one with 5)
★ yellow team★ red team★ blue team★ green team★ purple team★ black team★ orange team
First step …..
Every team has to find and insert 3 images of their device.
Every team can get 3 points. The teacher will build the score board step by step.
Input devices, processing and output devices
With input devices you can enter raw data into a computer. The computer processes the data and then
produces outputs that we can understand using an output device. Input devices can be manual or automatic.
What processes the data? The Central Processing Unit (CPU).
Manual input devicesThe most common manual input devices are the keyboard and mouse. Let’s discover the other manual input devices ...
Manual input devices
Concept keyboard
Each button has a functon. Buttons can
have text or picture.
Fast food restaurants often use concept
keyboards because with a single button you
can order an entire meal.
1p
solo quella col cibo ...
Manual input devices
Trackball
You can use instead of your mouse. The
user rotates the ball which moves the
pointer on the screen. Their use is very
easy, also for those presenting difficulties in
manual movements.
2pmedia 1,5
molto simili … un po’ inevitabii
Manual input devices
Joystick
If you play a videogame you have a Joystick
to control your game.
In building construction, joysticks control
machinery such as cranes.
3p
Manual input devices
Digital camera
A digital camera takes pictures and can
usually record videos, too.
The pictures it takes and the videos it
records are stored in files.
These files can be copied into a computer
and then edited.
troppo simili … perchè non una web cam?? esterna e in un dispositivo
2p
Manual input devices
MicrophoneMicrophones are used to input sound. In
computing they can be used with voice
recognition software and a word processing
application to enter text. Webcams usually
have built-in microphones, too.
troppo simili … perchè non una microfono incorporato di un tablet o smart phone?
2pmedia 2 p.
Manual input devices
Touch screenA screenvisual display unit screen that allows
the user to give commands to the computer
by touching parts of the screen instead of
using the keyboardquesti non sono touch screen … al momento sono solo progetti e fantascienza … e comunque non sono toccabili (si tratterebbe di altra tecnologia)
c’erano i tablet… che fine hanno fatto??smart phone?
0 p
Manual input devices
Video digitiserA video digitiser takes an image from a
video camera or television and digitises it
so that it can be read by, and stored on, a
computer. Video sequences captured using
a video digitiser are often used in
multimedia presentations.
le immagini richieste erano 3 ...
2p
Manual input devices
ScannerA scanner can be used to digitise images.
They're similar to a photocopier but they
make a digital copy instead of a physical
copy. They can also be used with optical
character recognition (OCR) software to
scan in text that is then editable.
2 sono uguali (bene la terza). Magari una stampante/scanner/fotocopia?
2 p
Manual input devices
Graphics tabletA graphics tablet consists of a flat pad (the
tablet) on which the user draws with a
special pen. As the user draws on the pad
the image is created on the screen. Using a
graphics tablet, a designer can produce
very accurate on-screen drawings as if they
were drawn on paper.
immagini richieste 2…è vero che sono simili ma doveno essere 3
2p
Second step ….. let’s play!
If you think that new words or verbs need to be explained, please write them in the glossary prepared by the teacher. Remember to write every word in alphabetical order.
Make sure you’ve understood! You are going to change group to explain to the other classmates what your device is and how it works. Are you ready?
When the teacher asks you to change group, only one student will remain seated waiting for the new classmates. Everybody will go to a different group, so every group will have somebody able to explain each input device you’ve explored.
Everybody will talk about each input device at least 25 seconds and no more than 1 minute (you can use a mobile or your ipad to take the time). During the activities, the other members of the group decide how many points to give each student (from 0 to 3 points):- 0 if you don’t say a word- 1 if you can’t explain or the other ones can’t understand what you say- 2 if you can explain and the group understands the general meaning- 3 if you speak plain and the group understands everything very well
At the end of these activities, every “colour” tells the teacher the score obtained and you go back to your colour team..
Yellow Red Green Purple Black Orange Blue
students 9 9 9 10 11 6 12
teacher 1,5 3 0 2 2 2 2
TOTAL first step 10,5 12 9 12 13 8 14
Third step ….. once again changing devices: output device
Let ‘s start again!
Your team is all here and you are going to work on your slide (read the next slide then look for your color).
When the teacher asks you to move to another group, rembember you can’t be with the same group you were in the previous activity.
At the end of these new activities, every “colour” tells the teacher the new score.
Go back to your color team.
Input devices, processing and output devices
Automatic input devices let the data be entered without any human interventions.
Question: what are the differences between automatic and manual input devices?The difference is that a manual input device needs the human source of input ( the data are typed in or some special keys need to be pressed), while automated input devices are used in situations in which the data are already prepared, when the data are collected in a form, the input device can pick them up and transmit them directly into the computer.
Automatic input devicesLet’s discover the other manual input devices ...
Automatic output devices
SensorSensors are often used as part of a
feedback cycle. They collect data
continuously and are typically linked to a
control program that specifies acceptable
levels, eg the minimum and maximum
temperature in a green house, the right
temperature in your house depending on
the time, for your washing machine or your
fridge. The control program decides what to
do, relying on the data felt by the sensors.
Automatic input devices
Barcode readerBarcodes are represented by black vertical
bars and are read by a barcode reader.
Barcodes are printed on many products you
buy, each product has a unique code. When
read, information stored in the shop
database is recalled, such as the product
name and price. This information will
appear later on your receipt. The scanning
process also assists in stock management,
reducing the stock every time a product is
scanned/sold.
Find and insert 3 images, then delete this text.You need different picutres that can help your classmates to understand better and (very important) to remember.
Automatic output devices
Barcode readerBarcodes are represented by black vertical
bars and are read by a barcode reader.
Barcodes are printed on many products you
buy, each product has a unique code. When
read, information stored in the shop
database is recalled, such as the product
name and price. This information later
appears on your receipt. The scanning
process also assists in stock management,
reducing the stock every time a product is
scanned/sold.
Find and insert 3 images, then delete this text.You need different picutres that can help your classmates to understand better and (very important) to remember.
Automatic output devices
Magnetic strip (or stripe) readerBarcodes are represented by black vertical
bars and are read by a barcode reader.
Barcodes are printed on many products you
buy, each product has a unique code. When
read, information stored in the shop
database is recalled, such as the product
name and price. This information later
appears on your receipt. The scanning
process also assists in stock management,
reducing the stock by one each time a
product is scanned/sold.
Find and insert 3 images, then delete this text.You need different picutres that can help your classmates to understand better and (very important) to remember.
Automatic output devices
Magnetic Ink Character Reader (MICR)Magnetic ink characters appear at the
bottom of cheques. Banks use MICR to read
the numbers from the bottom of cheques to
obtain data such as account numbers and
bank sort codes. A particular font is used,
that makes it easy for the machine to
discriminate between characters. The ink is
magnetised, this makes it immune to
creases and dirty marks.
Find and insert 3 images, then delete this text.You need different picutres that can help your classmates to understand better and (very important) to remember.
Automatic output devices
Optical Mark Reader (OMR)An OMR reads marks made by pencil on a
printed form into the computer. OMR
systems are suited to reading pre-printed
forms and check boxes such as National
Lottery number selection sheets and
multiple choice exam papers.
Automatic output devices
VerbsAsk every group to suggest some new
verbs they have found during their study.
Nouns Ask every group to suggest some new
nouns they have found during their study.Put them in a google drive list with Italian translation … they will become a nice educational game!
Work in progress … here will appear the link to the educational game … enjoy!.
One example for you
Go to the score board