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HARDWARE AND OPERATING SYSTEMS, imagen, imagen, imagen, imagen, imagen,…
HARDWARE AND OPERATING SYSTEMS
1.Computer lengauge and function
ASCII
1.1COMPUTER FUNCTIONS
Input of data using pheriperal devices.
Output of data using pheriperal devices.
Storing data in the storage devices
Processing data in the central unit using the microprocessor and the memory.
2.COMPUTERS ELEMENTS
2.1Microprocessor
Microprocessors can process 64 bits at time.
It depends on its cache memoryand the speed at which it communicates with the RAM.
The clock rate sets the pace at which the processes are completed.
2.2Memory and units of storage
RAM
CACHE MEMORY
ROM BIOS
STORAGE DEVICES
Magnetic disks
Optical discs
Solid state memory
Motherboard and connecting devices(components)
Slots
The IDE
The chipset
Various input/output ports
Connecting external devices
Sound card or graphics card
Hrad disk, DVD drives.
Use the external ports
Tools
Asistente para agregar hardware
Informe sobre nuestros dispositivos
Administrador de dispositivos
Gestor de dispositivos
Software and operating systems
Operating system: Manage the systems resources making them available for use by the user and the applications
Aplicattions
Word processors
Spreadsheets
Presentations
Database management tools
Drawing programs
Antivirus software, file compressors, web browsers and webmail software, games and so on
The operating system
FUNCTIONS:
Manages the microprocessor
Manages the memory and storage systems
Provides an interface or working environment
Allows communications between applications and pheriperal devices
Windows operating system
Installing and uninstalling programs
Hard disk maintenance
Cleaning the hard disk
Defragmenting the hard disk
Detecting and repairing errors
Saving power
System update
5.Linux operating system
Installing and uninstalling programms
How to keep your system up to date
Computer networks
Local area networks or LANS
Types:
Linear
Star
Ring
Metropolitan area networks
Wide area networks
6.1Elements in a network
Adaptor or network card
The hub
It can be replaced by a switch
Transmision medium
6.2 Wireless networks
6.3 Shared internet access
Using internet connection sharing
Using a router
