unit 0 introduction to computer
DESCRIPTION
Introduction to ComputerTRANSCRIPT
What is a computer?
A device that accepts information and manipulates it for some result.
HARWARE FIRMWARE SOFTWARE
CPUMAIN
MEMORYPERIPHERAL
DEVICESSYSTEM APPLICATION
COMPUTER
HARDWARE(PHYSICAL PARTS)
CPU MAIN MEMORY PERIPHERALS
ALU CU RAM ROM INPUT OUTPUT
CPU
• MICROPROCESSOR• MOTHER BOARD• CASE• OTHER
COMPONENTS• BUSES
MONITOR
• The computer monitor is the physical display for your computer.
• The terms monitor and display are often used interchangeably
KEYBOARD
• looks like a standard typewriter keyboard. • Cursor Keys; Function Keys, F1 through
F12; Numerical Keypad …
MOUSE
• input device like the keyboard, but more dynamic.
• has a roller ball that is attached to several internal sensors ; 2 or 3 buttons
• you can click, highlight, or drag and drop the item.
DRIVES
• FLOPPY
• FLOPPY DRIVE
CD-ROM DRIVE
PRINTER• A printer transfers graphics
and text from your computer to paper.
• has lights and displays that tell you when it is out of paper or toner or ink, or when it has paper jammed inside it.
• Printers can differ in the resolution per inch, color capability and speed
SOFTWAREPROVIDES INSTRUCTIONS AND DATA
SYSTEM SOFTWARE
OPERATING SYSTEM & OTHER PROGRAMS
THAT ALLOW COMPUTER TO
FUNCTION
APPLICATION SOFTWARE
USED BY OPERATOR
FOR SPECIFIC TASKS
THE DESKTOPOnce Windows has been loaded, the desktop will be
visible on the screen
WINDOW
• Title Bar: Located at the top of the window, tells you what program you are using.
• Tool Bars: Located below the title bar, are specific to each program.
• Task Bar: Located at the bottom of the window, tells you what programs are open.
• Scroll Bars: Located on the side and on the bottom, enables you to scroll up/down or right/left.