I C T NOTES
A computer is an electronic device used to process, store and retrieve information.
ICT stands for information and communication technology.
CD stand for Compact disk
CPU stands for Central Processing Unit
Storage devices can be internal or external.
You use the internet properly if you never give your password to anyone
We open toolbox program for us to draw.
We take our colours from the colour box.
We take our shapes and pencil from the toolbox.
Handwriting is also called font
We click using the mouse.
(mouse , font , toolbox , colour box , Paint)
Basics of the information technology
Information technology (IT) is a technology which uses computers to gather, process,
store, protect, and transfer information.
Today, it is common to use the term Information and communications technology (ICT)
because it is unimaginable to work on a computer which is not connected to the network.
The computer consists of:
a. hardware – physical computer parts, palpable and visible
b. software – set of commands that are "understandable" to the computer;
instructions to its palpable parts, giving orders what to do
Types of computers
Mainframe computers
Minicomputer
Microcomputer
Supercomputer
Smartphone
Server computer
Workstation computer
Desktops
Laptops
Notepads
Palmtops
Parts of a computer
CPU contains the (brains) central components of the computer.
Monitor (the screen) a device used for viewing and editing output from a computer.
Displays information on the computer
Keyboard a set of keys used to operate a computer,
Mouse –is a small device used to point and select items on a computer screen.
1
,Keys found on a keyboard
Enter
Backspace
Caps lock
Shift
Number lock
Control
Computer games
Puzzle
Spelling city
Fizzy`s lunch lab
Itzabitza
Oregon Trail
Lifeboat to mars
Input devices
these are devices through which data enter the computer
Keyboard
Mouse
Microphone
Scanner
Digital camera
Touchpad
Output devices
Monitor displays information from the computer.
Printer produce information on paper. Produce information from softcopy to
hardcopy (paper). You get a hardcopy after printing out information.
Projector used to output information on big screens.
Speakers enables you to hear sounds like music or even recorded sounds.
storage devices
internal storage
magnetic disks
hard disk drive
floppy disk
optical disks DVD and CD
USB (universal serial Bus)
External hard drive
memory stick
memory card
USB (universal serial Bus)
Basic principle of computers:
Data enters the computer through one or more input devices.
The computer then processes the data and transmits the resulting data to output devices.
2
, Output devices can be human interfaces such as a screen or another electronic device
such as a storage device or computer network.
The system unit consists of the following components:
1. Motherboard - MBO
a computer "backbone" responsible for communication between components and
transmission of information.
2. Central Processing Unit - CPU
3. Hard Disk Drive - HDD –
device (memory) used for permanent data storage
4. Drive (SSD)
5. Floppy Disk Drive – FDD
6. Optical disks - CD, DVD
7. Graphics processing units (GPU)
8. Universal Serial Bus (USB)
Device that is both input and output: touch screen.
Common devices and media for storing and transferring data:
i. hard disk
ii. USB flash drive
iii. Diskette
iv. te and ZIP diskette
v. CD and DVD discs
vi. memory cards
vii. internal hard disk
viii. external hard disk
ix. network disk drive
Computer lab rules
we need rules to maintain order in the computer lab.
No unnecessary movement in the lab.
No liquids are allowed in the lab.
No noise is allowed in the lab.
Do not operate a computer without the teacher`s consent.
No food or drinks near computers.
Clean up your working area before you leave.
Do not step on plugs in the computer lab.
No use of computers when there is lightning.
Close/save your work when you have finished.
COMPUTER FAULTS
Screen freezing
Computer slowing
Slow internet
Strange noises
Malware
3
A computer is an electronic device used to process, store and retrieve information.
ICT stands for information and communication technology.
CD stand for Compact disk
CPU stands for Central Processing Unit
Storage devices can be internal or external.
You use the internet properly if you never give your password to anyone
We open toolbox program for us to draw.
We take our colours from the colour box.
We take our shapes and pencil from the toolbox.
Handwriting is also called font
We click using the mouse.
(mouse , font , toolbox , colour box , Paint)
Basics of the information technology
Information technology (IT) is a technology which uses computers to gather, process,
store, protect, and transfer information.
Today, it is common to use the term Information and communications technology (ICT)
because it is unimaginable to work on a computer which is not connected to the network.
The computer consists of:
a. hardware – physical computer parts, palpable and visible
b. software – set of commands that are "understandable" to the computer;
instructions to its palpable parts, giving orders what to do
Types of computers
Mainframe computers
Minicomputer
Microcomputer
Supercomputer
Smartphone
Server computer
Workstation computer
Desktops
Laptops
Notepads
Palmtops
Parts of a computer
CPU contains the (brains) central components of the computer.
Monitor (the screen) a device used for viewing and editing output from a computer.
Displays information on the computer
Keyboard a set of keys used to operate a computer,
Mouse –is a small device used to point and select items on a computer screen.
1
,Keys found on a keyboard
Enter
Backspace
Caps lock
Shift
Number lock
Control
Computer games
Puzzle
Spelling city
Fizzy`s lunch lab
Itzabitza
Oregon Trail
Lifeboat to mars
Input devices
these are devices through which data enter the computer
Keyboard
Mouse
Microphone
Scanner
Digital camera
Touchpad
Output devices
Monitor displays information from the computer.
Printer produce information on paper. Produce information from softcopy to
hardcopy (paper). You get a hardcopy after printing out information.
Projector used to output information on big screens.
Speakers enables you to hear sounds like music or even recorded sounds.
storage devices
internal storage
magnetic disks
hard disk drive
floppy disk
optical disks DVD and CD
USB (universal serial Bus)
External hard drive
memory stick
memory card
USB (universal serial Bus)
Basic principle of computers:
Data enters the computer through one or more input devices.
The computer then processes the data and transmits the resulting data to output devices.
2
, Output devices can be human interfaces such as a screen or another electronic device
such as a storage device or computer network.
The system unit consists of the following components:
1. Motherboard - MBO
a computer "backbone" responsible for communication between components and
transmission of information.
2. Central Processing Unit - CPU
3. Hard Disk Drive - HDD –
device (memory) used for permanent data storage
4. Drive (SSD)
5. Floppy Disk Drive – FDD
6. Optical disks - CD, DVD
7. Graphics processing units (GPU)
8. Universal Serial Bus (USB)
Device that is both input and output: touch screen.
Common devices and media for storing and transferring data:
i. hard disk
ii. USB flash drive
iii. Diskette
iv. te and ZIP diskette
v. CD and DVD discs
vi. memory cards
vii. internal hard disk
viii. external hard disk
ix. network disk drive
Computer lab rules
we need rules to maintain order in the computer lab.
No unnecessary movement in the lab.
No liquids are allowed in the lab.
No noise is allowed in the lab.
Do not operate a computer without the teacher`s consent.
No food or drinks near computers.
Clean up your working area before you leave.
Do not step on plugs in the computer lab.
No use of computers when there is lightning.
Close/save your work when you have finished.
COMPUTER FAULTS
Screen freezing
Computer slowing
Slow internet
Strange noises
Malware
3
