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Unit 1 Fundamentals Of IT
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IT UNIT 1FUNDAMENTALS OF IT
NOTES
[Document subtttee
,Contents
Unit 1 – Fundamentats of IT:..................................................................................................................4
Input devices:........................................................................................................................................4
Output devices:.....................................................................................................................................7
Communicaton Devices:.......................................................................................................................9
Processers:...........................................................................................................................................10
Motherboards:.....................................................................................................................................11
Computer memory:.............................................................................................................................12
Computer storage:...............................................................................................................................13
Computer Ports:..................................................................................................................................14
Expansion cards:..................................................................................................................................14
Types of Computer System:.................................................................................................................16
Connectvity Methods:.........................................................................................................................18
Communicatons hardware:................................................................................................................19
Hardware troubteshootng:.................................................................................................................20
Units of measurement:........................................................................................................................21
Number Systems:.................................................................................................................................21
Number conversions:...........................................................................................................................22
Types of sofware:...............................................................................................................................23
Appticaton Sofware:..........................................................................................................................24
Uttity sofware:...................................................................................................................................24
Operatng systems:..............................................................................................................................25
Communicaton devices:......................................................................................................................26
Sofware troubteshootng:...................................................................................................................29
Protocots:.............................................................................................................................................30
Types of servers:..................................................................................................................................31
Virtuatisaton:......................................................................................................................................33
Networking Characteristcs Connectvity Methods:.........................................................................34
Business Systems:................................................................................................................................36
Communicaton Skitts:..........................................................................................................................38
Communicaton Technotogies:............................................................................................................39
Personat Atributes:.............................................................................................................................41
Ready for work:...................................................................................................................................41
Job rotes:..............................................................................................................................................42
Professionat bodies:.............................................................................................................................42
,Industry certicaton:..........................................................................................................................42
Ethicat issues:.......................................................................................................................................43
Operatonat issues:..............................................................................................................................43
Threats:................................................................................................................................................44
Physicat and Digitat security:...............................................................................................................45
Safe disposat of data and computer equipment:.................................................................................46
, Unit 1 – Fundamentals of IT:
Understanding computer hardware:
Computer Hardware:
Input devices:
What is an input device?
An input device is a device that sends a signat to a computer, for exampte, mice and keyboards are
exampte of input devices.
Microphone Graphics tablet
Uses Uses What is it? What is it?
Edit sound in reat tme Used for modetting and Ftt pad which you draw A microphone is an
instead of using tive CAD work on using a stytus input device that
studio techniques Graphic designers and records voice and
Used to input sound ittustrators converts it to either text
Input speech or sounds or attows it to be sent
over the internet.
Limitatons Limitatons Benefits Benefits
Sofware isntt perfect More expensive than a Modify the drawings Can support car drivers
and can interpret words mouse easity Much quicker than
incorrectty Not suitabte for generat Greater tevet of typing
work accuracy can be More secure than
achieved passwords
More naturat top draw
items
Barcode reader Remote control
Uses What is it? Uses What is it?
Used in supermarkets Scan or read the barcode Tetevision Hand-hetd device
and shops by using visibte red tight Music system
Used in tibraries Lightng system
Used in companies Heatng system
Scan or read the
barcode by using visibte
red tight
Limitatons Benefits Limitatons Benefits
Not foot proof Reduce errors Controt a machine from Operate devices from
Expensive to setup Very fast a short distance distance
Needs training Improve safety and Signat between remote Usefut for peopte with
Needs speciic IT automate stock controt and device can easity be disabitites
equipment Easier to update as btocked Controtting hazardous
informaton is in Limited usage of chemicat process with
database hand/wrist can cause remote
issues
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