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Computers by Mind Map: Computers

1. Adventages and Disadventages of computer

1.1. adventages

1.1.1. speed

1.1.2. reliability

1.1.3. consistency

1.1.4. storage

1.1.5. communications

1.2. disadventages

1.2.1. health risks

1.2.2. violation of privacy

1.2.3. public safety

1.2.4. impact on Labor Force

1.2.5. green computing

2. networks and the internet

2.1. network is a collection of computers and device connected together offen wirelessly via communications devices and transmission media

2.2. networks allow computers to shared resource such as hardware,software,data,information

2.3. internet is a worldwide collection of networks that connect of million of business,goverment,agencies,education instructions,and individuals

2.4. web page can contain text,graphics,animation,audio and videos

2.5. website is a collection of related web page

3. Categaries of computer

3.1. personal computer (PC)

3.1.1. can perform all of its input,processing,output,and storage activities by itself

3.2. mobile computers

3.2.1. personal computer you can carry from place to place

3.2.2. notebook computers (labtop computter)

3.2.3. tablet PCs combine the features of a tranditional notebook computer with the simplicity of pencil and paper

3.3. mobile devices

3.3.1. computer device small enough to hold in your hand

3.3.2. smart phones offering the convenience of one-handed operation and an internet-enabled phone

3.3.3. PDA (personal digital assistant) provide personal information management functions such as calendar, an appointment book, an address book etc.

3.3.4. handheld computers computer small enough to fit in one hand ,many communicate wirelessly with other devices or computer

3.3.5. portable media players mobile devices on which you can store,organize,and play digital media

3.3.6. digital cameras can allow user to take pictures and store the photographed images digitally

3.4. game consoles

3.4.1. mobile computing devices designed for single player or multi player video games

3.5. server

3.5.1. control access to the hardware,software,and other resources on a network and provide a centralized storage area for programs,data,information

3.6. mainframes

3.6.1. large,expensive,powerfull computer that can handle hundreds or thousands of connected user simultaneously

3.7. supercomputers

3.7.1. fastest,most powerful computer,and most expensive capable of processing more than one quadrillion instructions in a single second

3.8. embeded computer

3.8.1. special purpost computer that function as a component in a large product embeded are everywhere such as at home ,in your car, and at work

4. components of computer

4.1. Input Devices

4.1.1. hardware component to allows you to enter dataand instructions into a computer keyboard mouse microphone scanner webcam

4.2. Output Devices

4.2.1. hardware component that conveys informationto one or more people printer moniter speakers

4.3. System Unit

4.3.1. electronic component that used to process data Motherboard CPU Memory

4.4. Storage Devices

4.4.1. storage holds data,instruction,and information for future use Flash drives hard disks opticals discs Cds Dvds Blu-rays Discs memory cards

4.5. Communication Devices

4.5.1. Hardware component that enables a computers to sent and recieve data cables telephone lines cellular radio network satellites other transmission media such as satellites and cellular radio network are wireless maens thay have no lines

5. computers sofftware

5.1. consist of a series of related instruction,organized for a common purpose

5.1.1. System software system software consists of the programs that control or maintain the operations of the computer and its devices operating system set of programs that coordinated all the activities among computer hardware devices utility program

5.1.2. Application softwares Application software consists of programs designed to make users more productive and/or assist them with personal tasks

5.2. software development

5.2.1. programmer (computer programmer), who develops software or writes the instructions that direct the computers to process data into information

6. computer usages

6.1. home user

6.1.1. spend time on the computer for different reason

6.2. small office/home office(SOHO) user

6.2.1. include any company with fewer 50 employees

6.3. mobile user

6.3.1. who work on a computer or mobile device while away from a main office,home office or school

6.4. power user

6.4.1. required the capabilities of a workstation or other type of powerfull computers

6.5. enterprise user

6.5.1. who use a computer in the enterprise which has hundreds or thousands of employees or costomers

7. computer Applications in society

7.1. education

7.2. finance

7.2.1. online banking

7.3. goverment

7.3.1. the goverment provide citizens with up-to-date information

7.4. health care

7.5. science

7.6. publishing

7.6.1. process of making works avilable to the public such as books,maggazines,newspapers,music,film ,and video

7.7. travel

7.7.1. handheld navigation device gives users turn-by-turn voice -prompted direction to a destination

7.8. manufacturing

7.8.1. industries use CAM (Computer-aided manufacturing) to reduce product development costs