Introduction to Computers. Are Computers Important? OF COURSE!

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Presentation transcript:

Introduction to Computers

Are Computers Important? OF COURSE!

So What is a Computer? A computer is an electronic device, operating under the control of instructions stored in its memory

What is a Computer? Can be programmed Carries out a set of arithmetic or logical operators Typically made up of a processing unit and some form of memory

How Many Computers Did You Use Today? Classroom computer Projector has computers in it Cars have dozens of computers Elevators Cash Registers …

History Jacquard Loom 1830 – Charles Babbage George Stibitz - father of the modern digital computer. 1937, Stibitz invented and built a relay-based calculator using binary circuits 1936, Alan Turing regarded as father of computer science

History Jacquard Loom

History

Charles Babbage’s Analytical Machine

History 1937 – George Stibitz – Father of the Modern Digital Computer

History Alan Turing – Father of Computer Science Turing Machine

History Continued Punch Cards Vacuum Tubes Transistors Integrated Circuit Microprocessor

The Components of a Computer Input – Allows users to enter data or instructions into a computer Output – Hardware that conveys information System Unit – Case that contains the electronic components Storage Device – Device that holds data, information, and instructions Communication Device – Enables a computer to send and receive data, instructions, and information to and from one or more computers or mobile devices

Components of a Computer

Hardware and Software Hardware: electric, electronic, and mechanical components Software: also called a program, tells the computer what tasks to perform and how to perform them

Types of Computers Personal Computers Mobile Computers and Mobile Devices Game Consoles Servers Mainframes Supercomputers Embedded Computers

Personal Computer

Mobile Computers and Mobile Devices

Game Consoles

Servers

Mainframe

Supercomputers

Embedded Computers A special purpose computer that functions as a component of a larger product – Calculators – ATM’s – Thermostats – Cameras – Printers – Etc.

Topics We’ll Get To Internet, World Wide Web Input Devices Output Devices Computer Hardware Computer Software Storage Operating Systems Special Topics – Piracy, Censorship, Privacy, Viruses, etc.