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Hardware and operating systems (windows operating system descarga (7)…
Hardware and operating systems
Computer language and function
When we communicate or memorise a sentence or make calculations, we use a lot of symbols,sound and images. Computer only use the numbers 0 and 1. This is know bya the binary system.
the smallest unit of information that we can store on 4 computer (0 or I)
called a bit (b), which is an abbrevation for binary digit
ASCII (the American Standard code for information interchange uses 7 bits to store up to 180 different characters
Computer functions
Output of data using peripheral devices
Input of data using peripheral devices
processing data in the processing unit (CPU), using the microprocessor and the memory
storing data in the storagte devices
Computer elements
memory and units of storage
cache memory
the cache memory stores the data tht the microprocessor uses most often
ROM BIOS
when you turn on your computer, it automatically checks the system. This initial check is carried out using instructions stored in a special read-only memory: the ROM BIOS.
RAM
The computer´s main memory it is RAM (random acces memory)
storage devices
The RAM stores data temporarily. When you turn off the computer, this data disappears.
Motherboard and connecting devices
parts
The IDE
The chipset
Slots
Various input/output ports
Connecting external devices
Hard disk, DVD drives
USB ports
sound card or a graphics card
microprocessor
today´s microprocessors can process 64 bits at a time.
a microprocessor´s power also depends on its cache memory and the speed at which it comunicates with the RAM.
the clock rate sets the pace at which processes ar completed. the clock continuously generates electrical impulses.
windows operating system
Hard disk maintenance
defragmeting the hard disk
detecting and repairing errors
cleaning the hard disk
saving power
Installing and unistalling programs
system updates
you can share a printer or files and folders
Software and operating systems
applications
presentations
database management tools
spreadsheets
drawing programs
Word processors
antivirus software
Programming languages
Operating system
Manages the system resources, making them availabe for use by the user and the applications.
The operating system
different computers can have different types of software, but they all need an operating system.
linux operating system
you can share a computer, a printer or folders
computer networks
wireless network
shared internet access
elements in a ntwork
hub
transmission medium
adaptor
