Discovering Computers 2016
Tools, Apps, Devices, and the Impact of Technology
Chapter 1
Introducing Today`s Technologies
Objectives Overview
- Differentiate among laptops, tablets, deskstops, and servers
- Describe the purpose and uses of smartphones, cameras, portable and digital media players, e-book readers, wearable devices, and game devices
- Describe the relationship between data and information
- Briefly explain various input options
- Differentiate the web from the internet, and describe the relationship among the web, webpages, websites, and web servers
Computers :
A computer is an electronic device, operating under the control of instructions stored in its own memory
- Accepts data (input)
- Processing
- Produces information (output)
Example :
Laptop
Tablet
Dekstop and All-In-One
The internet is a worldwide collection of computer networks that connects millions of businesses, goverment agencies, educational institutions, and individuals. A search engine is software that finds websites, webpages, images, videos, news, maps, and other information related to a spesific topic.
- The World Wide Web (or web, for short) is a global library of information availeble to anyone connected to the internet
- The web consists of a worldwide collection of electronic documents, each of which is called a webpage
- A website is a collection of related webpages
- A web server is a computer that delivers requested webpages to your computer
It is important that users protect their computers and mobile devices. Green computing involves reducing the electricity consumed and environmental waste generated when using a computer.
Strategies include :
- Recycling
- Using energy efficient hardware and energy saving features
- Regulating manufacturing processes
- Extending the life of computers
- Immediately donating or properly disposing of replaced computers
Program and Apps :
Software,also called a program, tells the computer what tasks to perform and how to perform them. Installing a program to work with the computer, mobile device, printer, and/or other hardware. Once installed, you can run a program so that you can interact with it. You interact with a program through its user interface. A software developer, sometimes called a developer or programmer, is someone who develops programs and apps or writes the instructions that direct the computer or mobile device to process data into information.
Communications and Networks :
In the course of a day, it is likely you use, or use information generated by, one or more of these communications technologies.
Example : Chat rooms, Email, Fox, FTP, Instant messaging, Internet, Newsgroups, RSS, Videoconference, Voice mail, Volp, Wireless Internet access points, Wireless messaging services.
A communications device is hardware capable of transferring items from computers and devices to transmission media and vice versa.
Home Networks :
- Connect to the intermet
- Share a single high-speed Internet connection
- Access photos, music, videos, and other content
- Share devices
- Play multiplayer games
- Connect game consoles to the Internet
- Subscribe to and use VolP
- Interact with other devices in a smart home
Business Networks :
- Facilitate communications
- Share hardware
- Share data, information, and software
- Education
- Goverment
- Finance
- Retail
- Entertainment
- Healt Care
- Science
- Travel
- Publishing
- Manufacturing