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:explode:Hardware and operating system :explode: (COMPUTER FUNCTIONS…
:explode:
Hardware and operating system :explode:
BINARY SYSTEM
The smallest unit that we can store on a computer is called Bit which is an abbreviation for binnary digit
Eight bits together from a byte(B)
ASCII:(The America Standard Code for Information Interchange) uses 7 bits to store up to 128 different characters
COMPUTER FUNCTIONS
Processing data in the central processing unit (CPU)using the microprocessor and the memory.
Storing data in the storage decives.
Output of data using peripheral decives.
Input of data usingl peripheral devices.
COMPUTER ELEMENTS
Microprocessor
:The clock rate sets the pace at wich processes are completed.Today's microprocesor can process 64 bits at a time.
Memory and units of storage
:
Ram
:The computer´s main memory is its RAM(random acess memory)
Cache memory
The cache memory store the data that the microprocessor uses most often
ROM BIOS
:This inicial check is carryed out using instructions stored in a special readonly memory:the ROM BIOS
lf everything is correct, the BlOS starts the operating system in the main memory,so that this svstem can take control of the computer
Storage devices
Magnetic discs
Optical discs
Solid-state memory (flash)
Motherboard and connecting devices
Parts:
The IDE and SATA
Chipset
Slots that can be PCI
Input/Output ports
Connecting external
Hard disk and DVD drives
Usb ports
Sound card or graphics card
Software and operating systems
Aplications
Database management tools
Drawing programs
Presentations
Spreadsheets
Word processos
Programing languages
Operating system
The operating system is the first thing that appears when you turn on your computer and the last thing you see when you are turnin it off
Functions of the operating system
Manages the microprocessor
Manages the memory and storage systems
Provides an interface or working enviroment
Allows communication between applications and peripheral devices
Windows operating system
Installing and uninstalling programs
Hard disk maintenance
Defragmenting the hard disk
Cleaning the hard disk
Detecting and repairing errors
Saving power
System updates
Linux operating system
Installing and uninstalling
Añadir y quitar in the Aplicaciones menu.This is the easiest way to add and remove aplications
Synaptic packagemanagement program.
How to keep your system up to date
Computer Networks
A computer network is a set of computers conected to each other so that they can share resources and exchange information
Metropolitan area Network
Wide are networks
Local area network or LANS
Star
Ring
Lineal
Elements in a network
Coaxial cable
Fibre optic cable
RJ45 connector
Wiriless networks as nkown as WLANs
Shared internet acess
Using a router
Using Internet Connection Sharing
Sharing resources in windows
Sharing a printer
Sharing files and folders
Sharing a folder
Accesing a shared folder
Sharing resources in Linux
Sharing a computer
Sharing a printer
Sharing folders
