1 / 11

Computer Basics

Computer Basics. Computer Types. What is a Computer?. A computer is an electronic device that executes the instructions in a program. What can a computer be used for?. What Does a Computer Do?. A computer has four functions: accepts data Input processes data Processing

xerxes
Télécharger la présentation

Computer Basics

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 Basics Computer Types

  2. What is a Computer? A computer is an electronic device that executes the instructions in a program. What can a computer be used for?

  3. What Does a Computer Do? A computer has four functions: accepts data Input processes data Processing produces output Output stores results Storage

  4. Important Computer Terms Hardware  - the physical parts of the computer. Examples? Software  - the programs (instructions) that tell the computer what to do. Examples? Data  - individual facts like first name, price, quantity ordered. Information  - data which has been massaged into a useful form, like a complete mailing address. Default  - the original settings; what will happen if you don't change anything. Examples?

  5. What Makes a Computer Powerful? Speed -A computer can do billions of actions per second. Reliability - Failures are usually due to human error, one way or another. Storage - A computer can keep huge amounts of data.

  6. Types of Computers PDA Tablet PC SmartPhone Desktop19+" monitor NetBook 9-11" screenCompressed keyboard Laptop/Notebook14-17" screenFull size keyboard Tower

  7. Laptop vs. Netbook A laptop computer is intended to be portable, with a built-in screen. A netbook is even lighter, with a smaller screen, less storage, and is missing features like a built-in DVD drive.

  8. Main Frame The main frame is the workhorse of the business world. A main frame is the heart of a network of computers or terminals which allows hundreds of people to work at the same time on the same data. It requires a special environment - cold and dry. Most main frame computers look like a bunch of tall cabinets.

  9. Supercomputer The supercomputer is the top of the heap in power and expense. These are used for jobs that take massive amounts of calculating, such as: weather forecasting engineering design and testing serious decryption economic forecasting

  10. Server The term server actually refers to a computer's function rather than to a specific kind of computer.

  11. Types of Servers A network server handles communication between computers on the network. A database server processes queries and updates for a large database that many computers can access at the same time. A web server sends out files and web pages over the Internet. A game server manages an online game so that many people can play together online. An email server sends and receives email for many different email accounts.

More Related