computer power point finale
TRANSCRIPT
Summery : Theory Midterm & Finale
Fazlea Allahie
Objective Introducing Computer Systems Looking Inside the Computer System Interacting with your computer Inputting Data in Other ways Video & sound The Internet & the world wide web email & other Internet Services
Printing Processing Data Types of Storage Devices Measuring & Improving drive performance Using Operating Systems Networks
Midterm
Finale
Finale P r i n ti n g
Today’s world users can’t imagine working without a Printer. Printing is essential in most workplace to share budgets, memos & other purposes.
Types : Most popular Three Types of Printers
LASERDOT MATRIX INK JET
DOT MATRIX : Most Commonly used Printing Devices. It works Produce Sheets of Plain Text very Quickly.
Speed : Slowest 50-70 Characters & Fastest 500 CPS Per Second
Resolutions : Lowest 9 Pins & Highest 24 Pins
Finale P r i n ti n g
LEASER : Laser is more expensive than Ink Jet Printers & Quality is Higher & Faster.It works like Electronic Gun to Target any Pixel.
Resolutions : 300 0r 600 both Vertically & Horizontally
INK JET : It Create Image directly on the paper by Spraying ink through Tiny Nozzles
Color: It’s have four Nozzles - > Blue/ Magenta (Red)/ Yellow & Black
Same As Non-Impact
Printer
Processing DataDATA : Data Consist of the raw numbers that computers organize to produce Information
BITS: A Single Units of Data is Called Bit& 8 bit make up on Byte. Text Codes : A system, numbers would represent the letters, punctuation marks & other Symbols. 04 Most popular Text Code Systems are-
UNICODE
EXTENDED ASCII
ASCII
EBCDIC
CPU : CPU is the “brain’ of the computer where data is manipulated.
CONTROL UNIT
CPU has Two Basic Parts
ARITHMETIC LOGIC UNIT
MEMORY : The CPU needs to have millions of bytes of Space when it can quickly read or write program & data & is called Memory.
02 TYPES
Non VolatileNonvolatile chips hold data even the computer is
unplugged
VolatileMemory lose their contents when the computers
power is shut off
PROM – Programmable read only memory
ROM RAM
FLASH MEMORY : This is Special Type of non Volatile Memory, It Used in Portable digital devices for Storage. Different Types
Digital Camera MP3 Player USB Game
Consoles
THE BUS : A bus is a path between the Components of a computer. System bus has two parts.
Data Bus Address Bus
Magnetic Storage Devices
Types of Storage Devices
Diskettes Hard Disk
Floppy Disk Memory Tape
FAT : File Allocation Table FAT 32: Upgrade Version FAT 16: It was used in MS-DOS Early Windows Operating System
OPTICAL STORAGE DEVICES: The most Popular alternatives to magnetic Storage Systems
CD-ROM , DVD-ROM, CD-R, CD-RW, DVD-RW, DVD-RAM, PHOTO CD
Measuring & Improving drive performanceDISK CLEANUP : Built-in- Utility called Disk Cleanup or Uninstalling
FILE COPMRESSION : File Compression or data Compression is the Technology for Shrinking the Size of a File to keep more Data.
WINZIP: Is Compressim for PC
Using Operating SystemsOS : Software Program & Master Control Program. It Organize 04 major Types
REAL TIME / Single Tasking User/ Single User Multi Tasking / Multi User Multi Tasking
Using Operating Systems
GUI : Pronounced Goo-ee is a graphical user interface short form GUI
RIGHT CLICK : Clicking on right side of the windows, a small menu appears. The most common command associated with the object.
SCREEN SAVERS : This is Popular Utilities although they serve little purpose. Automatically appears keyboard or pointing device.
MENU BAR : Program windows Horizontal List called Menu Bar
Networks
NETWORK : Set of Technologies Including Hardware, Software & Media. To Share Data & Programs.
Common Type of Networks
LOCAL AREA NETWORKS (LANs)WIDE AREA NETWORKS (WANs)
HYBRID NETWORKSMETROPOLITAN AREA NETWORKS (MANs)
CAMPAS AREA NETWORKS (CANs)HOME AREA NETWORKS (HANs)
WIRE-BASED MEDIA : The most common media for data communications are Twisted pair wire. Example- Coaxial/ Fiber Optic / Wireless links
WIRELESS MEDIA : This network use Radio signals through the Air or either for Transmission Data. Use also Satellite & Microwave Communication.
GATE WAY : To create a communication between different types of network placed at a junction between two or more Networks.PROTOCOL : A Protocol as an agreed upon format for transmitting data between two devices.
TCP / IP, IPX / SPX & NET BIOS
Midterm1 Introducing Computer Systems2 Looking Inside the Computer System3 Interacting with your computer4 Inputting Data in Other ways5 Video & sound6 The Internet & the world wide web7 email & other Internet Services
COMPUTER : A computer is an electronic device that process data, converting it into Information.Example – Analog / Digital
COMPLETE COMPUTER SYSTEM
HARDWARE / SOFTWARE/ DATA / USERSCOMPUTER HARDWARE : MAJOR 04 CATEGORIES
PROCESSOR – LIKE THE BRAIN MEMORY
INPUT & OUTPUT STORAGE
INPUT DEVICES : Keyboard & MouseOUTPUT DEVICES : Monitor & Printer
DATA : Data can be Text, Numbers, Sounds & ImagesINFORMATION : Using all parts together a computer converts data into Information by performing various actions on the data.
OPERATING SYSTEM : An operating system tells the computer how to use its own component
Windows Linux Mac ox
Hardware & Software
SoftwareHardware
GRAPHICS CARD & MORE
PROCESSOR
STORAGE
MOTHER BOARD
RAM
MS EXCEL
MS WORD
SOUND
MS OFFICE
WINDOWS (OS)
ADOBE
Most Major KeyboardALPHANUMERIC KEYS - QWERT
THE CURSOR – MOVEMENT KEYS - By Without Using Mouse
THE MODIFIER KEYS – Shift/ALT & CTRL
NUMERIC KEYPAD – Right Side Keyboard With 10 Digits Operations
THE FUNCTIONAL KEYS – F1, F2, & More
Chat
Instant Message
Electronic Mail
News
& More…
File Transfer Protocol (FTP)
Online Service
Network of Networks
Email In Business Communication
Fastest Modern Business Communications Guider.
Out Sourcing
Record Keeping Low Cost
Networking
Marketing
Job & Career Development
Informat ion Technology In Tourism Indus try
Transport Computer Reservation
System (CRS)
Global Distribution Systems
Tourism Marketing
THE END