Chp 1 – Introduction to Computers

1. Chp 1 – Introduction to Computers Section 4-6

2. Mobile Computer and Mobile Device • Mobile Computers – can be carry from place to place • Mobile Devices – a computer device small enough to hold in your hand

3. Notebook Computer/Laptop Computer • Most popular type of mobile computer • Fits in your lap • Thin and light weight • Usually more expensive then a desktop with the same capabilities

4. Tablets PCs • Special type of notebook computer that allows you to write or draw on the screen using a digital pen • Some have attached keyboards • Especially useful for taking notes

5. Mobile Devices • Usually don’t have disk drives • Store program and data permanently on special memory inside the system unit or on small storage media such as memory cards • Some have Internet-enable

6. Five Popular Types of Mobile Devices • Smart Phones • PDA (personal digital assistant) • Handheld Computers • Portable Media Players • Digital Cameras

7. Game Consoles • Mobile computing device designed for single-player or multiplayer video game • Three popular models • Microsoft’s Xbox 360 • Nintendo’s Wii • Sony Playstation 3

8. Servers • Controls access to the hardware, software, and other resources on a network • Can support two or several thousand connected computer

9. Mainframes • A large, expensive, powerful computer that can handle 100 or 1000 of connected users • Stores tremendous amounts of data, instruction and information

10. Supercomputer • Fastest, most powerful, most expensive computer • Can process more than one quadrillion instructions in a single second

11. Embedded Computers • A special-purpose computer that function as a component in a larger product • Everywhere – at home, in your car, and at work

12. Elements of a Information System • Hardware – must be reliable • Software – need to be develop carefully • Data – entered in correctly • People – should be skilled • Procedure – readily available

13. Example of Computer Users • Home users – family member who uses a computer for a variety of reason such as budgeting and personal finance • Small Office/Home Office (SOHO) – Company with 50 employees and self-employed people who work from home

14. Example of Computer Users • Mobile Users - Work on a computer a mobile computer while away from a main office, home office or school • Power Users – requires the capabilities of a workstation or other types of powerful computers • Example of power users: engineer, scientist, architect, desktop publisher, and graphic designer

15. Example of Computer Users • Enterprise Users – work in or interact with a company with many employees and uses a computer network that process high volume of transaction in a single day

16. Computer Application in Society • Education – students use computers software to assist with learning • Finance – use computers for online banking and online investment • Government – have Web sites to provide citizen with up-to-date information

17. Computer Application in Society • Health Care – used to maintain patient records, monitor patients, and file insurance claims • Science – use to assist with collecting, analyzing, and modeling data • Publisher- use to assist in designing pages and make the content of their available online

18. Computer Application in Society • Travel –online navigation system help people travel more quickly and safely • Manufacturer – use computer-aided manufacturing (CAM) to assist with manufacturing processes