1 / 13

Computer Hardware & Software

Computer Hardware & Software. CPU: Central Processing Unit. Like the computer’s brain A small chip that performs calculations & carries out instructions given to the computer The speed of a CPU is measured in Megahertz (MHz)-millions of CPU’s per second

gezana
Télécharger la présentation

Computer Hardware & Software

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Computer Hardware & Software

  2. CPU: Central Processing Unit • Like the computer’s brain • A small chip that performs calculations & carries out instructions given to the computer • The speed of a CPU is measured in • Megahertz (MHz)-millions of CPU’s per second • Gigahertz (GHz)-billions of CPU’s per second

  3. Bits, Bytes & Binary Numbers • Bit-smallest unit of information; either a 1 or 0 • Byte=8 Bits-building block for all information that flows through the computer. • Binary Numbers-a string of 1’s and 0’s that data is turned into so the computer can understand

  4. Hardware • The collection of physical devices that makes up your computer system; also known as components. • Examples: Speakers, Keyboard, Monitor, Microphone, Modem, Printer, Hard Drive, Mouse, Disk Drive

  5. Input & Output Devices • Input Devices: Devices that allow the user to enter information intothe computer. • Keyboard, Mouse, Scanner, Digital Camera, Joystick • Output Devices: Devices that deliverinformation back to the user from the computer. • Monitor, Printer, Speakers

  6. Computer Memory & Storage Devices • RAM (Random Access Memory)- short term memory; RAM is used when you log on your computer and access software. • ROM (Read-Only Memory)- permanent information on your computer; built in instructions to tell the computer how to start up or shut down.

  7. Computer Memory & Storage Devices • Types of Storage Devices • Hard Drive: Major storage device of the computer • Flash Drives: Portable devices that can plug into the USB port of the computer • CD’s & DVD’s: Portable devices that can hold large amounts of information such as music or videos • Floppy Disk: Portable device that holds small amounts of information such as text documents

  8. Software • Set of instructions that makes it possible for your computer to perform tasks. • Translates the commands you give into binary numbers so the computer can understand. • Also called a program or application.

  9. Software • Types of Software • Operating System (OS) software: the main program that makes your computer work • Microsoft Windows • Mac OS • Linux • Handheld OS (PDA’s, MP3’s, Iphone) • Application software: lets you do different tasks on your computer, such as type a report or send e-mail • Microsoft Office • Utility software: helps to control your computer and keep it in good running condition • Spyware • Program Updates

  10. Computer Network • A group of computers connected together. • Allows people to share information and resources • Printers, storage devices, internet connections • A network server is a powerful computer that makes it possible for many users to share information and resources.

  11. Websites • A specific location on the web that contains a collection of related files and resources • Web Addresses: the address of the website • Also called a URL-Uniform Resource Locator

  12. Getting Connected • You need: • A computer, Internet Service Provider (ISP), modem & communication software • Modem: a device that lets your computer send data to and receive data from other computers over a network • ISP: Internet Service Provider is the company that sells you access to the internet.

  13. Web Browser • A software program that lets you surf the Web and interact with websites. • Internet Explorer • Safari • Mozilla Firefox • Google Chrome

More Related