Www.itcsoftware.com ITC Software ITC LOCALIZATION TESTING SERVICES.
Itc tinfo ingl_hardware
-
Upload
claudia-prati -
Category
Education
-
view
63 -
download
0
description
Transcript of Itc tinfo ingl_hardware
INFORMATION TECHNOLOGY
VON NEUMANN MODELA COMPUTER SYSTEM IS MADE OF:
INPUT DEVICES
OUTPUT DEVICES
HARDWARE+
SOFTWARE
RAM ROM
CPUCONTROL
UNIT + ALU
MASS STORAGE
SCREEN
KEYBOARD
HARDWARE
HARDWARE IS WHAT WE CAN TOUCH AS FOR EXAMPLE THE MONITOR,THE KEYBOARD, THE MOUSE, THE PRINTER, THE WEBCAM……
A LAPTOP
FLEXIBLE KEYBOARD
KEYBOARDS
A computer keyboard is like a typewriter keyboard. It has the alphabet letters,the numbers, the punctuation and extra keys for control purposes.
SPACEBAR
ARROWS
INPUT DEVICES
INPUT DEVICES SUPPLY DATA TO THE COMPUTER. THEY ARE:- KEYBOARD- MOUSE- JOYSTICK- SCANNER- SCANNING DEVICE- DIGITIZING TABLET- TOUCH-SENSITIVE SCREEN- MICROPHONE
SUPERCOMPUTER
MAINFRAME
MINICOMPUTER
PERSONAL COMPUTER
TYPES OF COMPUTER
GAME CONTROLLER
Computer games are controlled by games paddles o joysticks; both are based onsmall levers which can be moved in various directions.
OUTPUT DEVICES OUTPUT DATA FROM THE COMPUTER. THE MOST IMPORTANT ARE:• DISPLAY SCREEN • VDU (VISUAL DISPLAY UNIT• PRINTERS (LASER PRINTER, INK-
JET PRINTER)• PLOTTER (they are used to produce
drawings, diagrams and other types of graphical output)
OUTPUT DEVICES
MASS STORAGE
Floppy disk
Zip disk
Hard disk
CD ROMCD RCD RWDVDdisk
Magnetic tape
MOTHERBOARD
It is the central printed circuit board.It holds a lot of the crucial components of the system.It provides connectors for other peripherals.
WHAT IS ROM?
ROM IS THE READ ONLY MEMORY.DATA SAVED WITH ROM CAN’T BE CHANGED.IT IS USED FOR OPERATING SYSTEMS, CD-ROMS AND OTHER PROGRAMS.
CPU + CLOCK
CPU can be considered the brain of the computer. It performs the calculations, runs the programs and generally controls what the computer does.
WHAT IS RAM?
IT IS THE RANDOM ACCESS MEMORY. IT’S THE TYPE OF MEMORY WE USE TO SAVE OUR WORK TO THE HARD DISK OR A MEMORY KEY.
RANDOM – NOT SEQUENTIAL it is a volatile memory, not permanent and the information stored in it is lost when the computer is turned off.
PEN DRIVEUSB MEMORY
STICK
NETWORK HUB
WIRELESS HUB
TECHNOLOGYCOMMON WORDS
• TOOLBAR• MENU• ICON• CURSOR• MEMORY• BUG/VIRUS• A DOCUMENT• A BACK-UP COPY• DATABASE• SPEAKER• KEYBOARD• PEN DRIVE• CPU• ROM=READ ONLY MEMORY• RAM=RANDOM ACCESS MEMRY• APPLICATION• FILE• FOLDER• FONT• WWW= WORLD WIDE WEB• LAN= LOCAL AREA NETWORK
COMMON VERBS• TO PLUG IN=COLLEGARE• TO TURN ON/OFF• TO DELETE• TO STORE/ TO SAVE• TO COPY• TO HIGHLIGHT• TO TRANSFER• TO DRAG• TO CUT• TO PRINT• TO SELECT• TO SURF• TO CONNECT• TO CHAT• TO RECEIVE• TO SEND • TO DOWNLOAD• TO LOG IN/OUT• TO MOVE A FILE• TO INSTALL