Computer Basics. What is a Computer? A computer is a machine that can take inputs from the user, process that information, store that information as needed.

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Presentation transcript:

Computer Basics

What is a Computer? A computer is a machine that can take inputs from the user, process that information, store that information as needed and produces an output in a desired form.

What is a Computer? A machine that can: 1.Receive an input 2.Process the data 3.Produce a result in a desired format 4.Store information as needed

Types of Computers 1)Super Computers 2)Mainframes 3)Personal Computers 4)Laptops

Parts of a Computer HardwareSoftware

Hardware The Physical portion of the computer 1) Input- keyboard, mouse 2) Output- monitor 3) Storage- hard drive (internal), thumb drive 4) Memory- RAM (random access memory) 5) Central Processing Unit (Microprocessor)

The Computer System Unit The “computer tower” a. Power Supply b. Mother Board 1. CPU 2. RAM (memory) c. Expansion slots d. Drive Bays - Hard Drive – Universal Serial Bus Universal Serial Bus.

Peripherals Your Input and Output Devices Output: Monitor, Printer Input: Mouse, Keyboard, CD ROM Input/Output: Hard Drive, CD R/CD RW, Modem

Bits and Bytes Computers use a binary code to represent databinary code Bit= a 0 or a 1 Byte= 8 Bits (for example a letter or a space) – Kilobyte=1,024 bytes – Megabyte=1,024,000 bytes – Gigabyte=1,024,000,000 bytes – Terabyte=1,024,000,000,000 bytes

Discuss Computer Speed (Htz)

Software The Program portion of the computer 1) Operating System Software- tells hardware how to run properly 2) Application Software- programs users can run to accomplish a task ex: Microsoft Word©

Application Software In this course we will cover the following Application Software: 1) Microsoft Word (word processing) 2) Microsoft Excel (spreadsheet) 3) PowerPoint (presentation) 4) Microsoft Access (database)

Operating System (OS) Operating System- allows hardware to communicate with application software

Windows XP Top Features include: Fast User Switching Windows Media Player Windows Movie Maker Automatic Updates Remote Assistance Network Setup Wizard Simplified Visual Design My Pictures Internet Explorer 6 System Restore

Types of OS 1) Graphical User Interface (GUI)- ex Windows 98 - contains graphics and icons, navigated by mouse 2) Multi-User- ex Windows XP - more then one user can access the computer at the same time 3) Multiprocessing- ex Windows XP - capable of utilizing more then one processor at the same time 4) Multitasking- ex Windows XP - allows multiple software programs to run at the same time