2803486
Description
Mind Map by mariananl13, updated more than 1 year ago
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Created by mariananl13
over 9 years ago
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ICT
- Encompases any technology
that allows us to process data
and to communicate
- Data is simply any
numbers,letters or symbols that
can be entered into a computer
system
- Context is what the data represent
- with context, te data has meaning
now it is information
- with context, te data has meaning
now it is information
- Context is what the data represent
- Data is simply any
numbers,letters or symbols that
can be entered into a computer
system
- A system has three stages
- 1. The input
2.the process
3.the output
- 1. The input
2.the process
3.the output
- A computer is a device that
stores and process information
- Information
- Processing of the
information using
instructions
- New
information
- New
information
- Processing of the
information using
instructions
- Information
- Components
- Hardware
- Is the physical part of
the computer system
- Is the physical part of
the computer system
- Software
- Is a collection of instrcutions
that tell the computertr what
to do (is not a physical thing)
- Is a collection of instrcutions
that tell the computertr what
to do (is not a physical thing)
- Difference
- software is instructions that
tell hardware computer what
to do
- software is instructions that
tell hardware computer what
to do
- Hardware
- CPU
- iis the device that out
software instructions
- Measured in
hertz (Hz)
- Measured in
hertz (Hz)
- iis the device that out
software instructions
- Main memory
- Is where any data or instructions
that are to be proccesed by the CPU
must be placed
- Is where any data or instructions
that are to be proccesed by the CPU
must be placed
- RAM
- Is a volatile storage device
- When a computer is in use, its RAM will contain:
- 1.The operating system
software 2.The application
software currently being used
3.Any data that is being
processed
- 1.The operating system
software 2.The application
software currently being used
3.Any data that is being
processed
- When a computer is in use, its RAM will contain:
- Measured in bytes
- Is a volatile storage device
- ROM
- Is used in most computers
to hold a small,special piece
of software
- Is used in most computers
to hold a small,special piece
of software
- Pheripherical devices
- Input device
- Devices that pass data into the computer
- Keyboard, mouse ,
webcam....
- Keyboard, mouse ,
webcam....
- Devices that pass data into the computer
- Output devices
- Devices that take data
from the computer
- A monitor, a
printer, a loud
speaker...
- A monitor, a
printer, a loud
speaker...
- Devices that take data
from the computer
- Input device
- Backing storages
- Is the name of all the devices that
ca store data in a computer system
- Is the name of all the devices that
ca store data in a computer system
- Operating system
- Is special piece of software that
manages the general operation of a
computer system
- Windows Xp,
linux,, mac OS
X ...
- Windows Xp,
linux,, mac OS
X ...
- Is special piece of software that
manages the general operation of a
computer system
- User interface
- Graphical user interface
- Command-line interface
- Graphical user interface
- Computers
- Mainframe
- Is a large computer, often used
by large business, in goverment
pffices, or by universities
- Is a large computer, often used
by large business, in goverment
pffices, or by universities
- Personal computer (PC)
- Computer that contains the same basic
cpmponents as a mainframe computer but
a fraction of the size and cost
- Computer that contains the same basic
cpmponents as a mainframe computer but
a fraction of the size and cost
- Laptop
- Is a light, compact and portable PC
- Is a light, compact and portable PC
- Palmtop computer
- is similar to a laptod but smaller
- is similar to a laptod but smaller
- Personal Digital Assistant (PDA)
- Is similar to a palmtop computer
but is more compct and has no
keyboard
- Is similar to a palmtop computer
but is more compct and has no
keyboard
- Mainframe
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