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Hardware and operating systems - Coggle Diagram
Hardware and operating
systems
1-computer language and function
this is know as the binary system
ASCII: We give a code to each of the letters of the alphabet.
EXAMPLES: A= 01000001, B=01000010, +=00101011, &=00100100
1.1- Computer function
We use name hardware for the physical components of the computer system
Software or programs refer to the data and the instructions
2-Memory and units of storage
CACHE MEMORY
RAM cannot work at the same spped as the microprocessor so a much faster memory is installed between the RAM abd the microprocessor
ROM BIOS
when you turn on your computer, it automatically checks the system.
the initial check is carrieded out usibg insturctions stored in a special read-only memory: the ROM BIOS
RAM
the computer's memory is its RAM (random access memory
Stoorage devices
the RAM stores data temporaily. when you turn off the computer, this data disappears
2.2 Memory of storage
2.1-microprocessor
computer history is very closely linked to the development integrated circuits or chips
2.3-Motherboard and connecting devices
slots that can be used yo expand or add new components
3- software and operating systems
Applications
Programming languages
Operating
The oprating system:The operating system is the first thing that appears when you turn on your computer and the las thing you see when you're turning off.
Functions of the operating system:
1-Manages the microprecesor
2-Manages the memory ans storage system,
3-Provides and interface or working environment
4- windows operating system
Installing an uninstalling programs: if you nuy the program from a shop, it will be on one or more CDs or DVDs.
Hard disk maintenance
1- cleaning the hard disk
2- Defragmenting the hard disk
3-Detecting and repairing errors
Saving power
System updates
5-limux oprating systerm
Instaling and uninstalling pograms
Añadir y quitar in the Aplicaciones menu
Synaptic package management program
How to keep your system up to date
open the Gestor de actualizaciones through.Sistema Administracion
Click on Comprobar. Alist of recommended updates will appear
6-computer network
metropolitan area networks
wide area networks
local area networks or LAN's
6.1. elements in a network
hub, it can be replaced by a switch
transmission medium
adaptor or network card
6.2. wireless network: wireless networks, knows as WLAN's (wireless LAN's), use electromagnetic waves to transmit data. All computer need to have a wireless network card
6.3.shared internet access
using a router, which detects data and directs it to and form the internet
using internett connection sharing (ICS)
