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Introduction To Information Technology and Computing, Network…
Introduction To Information Technology and Computing
Information Technology
Definition
systems of hardware and/or software
capture, process, exchange , store , present information
using electrical, magnetic, electromagnetic energy
referring to variety of items and abilities
used in creation , storage and dispersal of data and information
Items
Data
raw facts
Information
organized, processed data
Knowledge
awareness and understanding of a set of information
how the information can be put to the best use
Components
Computers
Hardware
Program
Information
Communications
Hardware
Program
Information
Knowledge
People
Information
Procedure
History Of IT
History of IT
2ND GENERATION
1ST GENERATION
Used vacuum tubes,ENIAC
4TH GENERATION
Used Microprocessors
Entire CPU on one chip(Intel 1970)
Used transistors,UNIVAC
3RD GENERATION
Used Integrated Circuits (IC)
IT in Society
Business
ELECTRONIC COMMERCE
-Electronic transations
-Online sales
BUSINESS OPERATIONS
-Factory operation system
-Database
INTERNAL COMMUNICATION
-Computer network
-Corporate website
People
PERSONAL COMMUNICATIONS
-Conversations
-Messaging
ENTERTAIMENT
-Downloading video
-Interactive gaming
DAY-TO-DAY LIVING
-Ordering books
-Electronic banking
Careers in IT
IT Analyst
Software development
IT Sales
Information Security Jobs
Database Administration
Computer Forensics Expert
Computer
COMPONENTS
COMPUTERS
Sizes
Microcomputers
Desktop Computers
Laptop Computers
Personal Digital Assistants
Palm PCs
Tablet Pcs
Midrange Computers
perform specific functions
Mainframes
interconnect people and large sets of information
Supercomputer
solve problems consisting of long and difficult calculations
Element
Hardware
Computer associate equipment
Program
instructions that directs a computer to perform
Software
controls a computer or a communications network.
System
components that interact to accomplish a purpose.
Information System
produce the information needed for successful management of a structured problem, process, department, or business.
electronic system that accept, process, store, and present data and information
COMMUNICATION NETWORKS
Communication
sending and receiving of data and information
Communications Network
Location consisting of hardware, programs, and information linked together as a system
Data Communication
transmission of data and information through a communications medium.
KNOW-HOW
Familiarity with the tools of IT
capability to do something well
possess the skills needed to use the tools
understanding of when to use IT
Network Administration
