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Hardware and operating systems - Coggle Diagram
Hardware and operating
systems
Computer language and function
When we communicate or memorise a sentence or make calculations.we use a lot of different symbols, sounds and images.
Computers only use the nubers 0 and 1
this is known as the
binary system
the smallest unit of information that we can store on a computer is called a bit
computer
Computer functions
Software
or programs refer to the data and the instructions we use to manage that data
computers carry out four different functions
storing
of data using
storage devices
Input
of data using
peripheral devices
Output
of data using
peripheral devices
processing
data in the central processing unit usig the
microprocessor
and the
memory
We use the name
hardware
for the phisical components of the computer system that we use and those we can touch and move, like the mouse and the keyboard
elements
Microprocessor
the microprocessor is an integrated circuit made up of millions of tiny transactors working together to process the instructiuns and data received from the memorv
memory and units of storage
RAM
the computer`s main memory is its RAM When we run an aplication, its instructions and data are copied to this
memory so that the microproressor can use themm
cache memory
RAM cannot work at th e same speed as the microprocessor, so a musch faster memory is installed between the RAM an the microprocessor; rhe cache memory
rom bios
storage devices
we use data storage units to permanently save this data
When you turn on your computer. it automaticly checs thw system.This initial check is carried out using instructions stored in a special read-only memory:the rom bios
Motherboard
all the components are connected to it
the power supply unit
graphics card
networks
elements
each computer needs an adaptor or network card
The hub distributes all of the information it recives
This information travels down a transmmision medium
LANs
local area network
WLANs
Wireless LANs
Software and operating systems
operating system
The operating system is the first thing yhat appear when you turn on your computere and the last thing you see when you are turning it off
windows operating system
Installing and uninstalling programs
Hard disk maintenance
saving power
system updates
linux operating system
Installing and uninstalling programs
How to keep your system up to update
programming languages
applications
word processor
spreadsheets
presentations
database management tools
drawing programs
