Computer Supported Cooperative Work

The term Computer Supported Cooperative Work (CSCW) was first used by Irene Greif and Paul M. Cashman in 1984, at a workshop attended by those interested in using technology to facilitate their work .. On the same occasion in 1987, Dr. Charles Findley presented the concept of collaborative learning-work. According, CSCW raised issues around how collaborative activities and coordination of computer technology can be supported therein. Some people equate with CSCW groupware, but others say that groupware refers to a concrete manifestation of a computer-based system, whereas CSCW focuses on the study of Kakas and techniques of groupware itself, including the effects that arise bail psychologically and socially. Proposed definitions emphasize the differences between these two concepts:
CSCWSalah a general matrix form of the conceptualization of CSCW systems is to examine the context of the use of the system. An example is the matrix of CSCW, which was first introduced in 1988 by Johansen, and also appeared on. The matrix is membagikonteks a "work" in two dimensions the time and location. Time dimension is divided into collaboration conducted at the same time (synchronous) or different (asynchronous). Dimensional locations are divided into collaboration conducted in the same place, or distributed.

Mobile Device

Mobile device consists of Lcd, Keypad, Battery, IC (Interface, Audio, Charge, Regulator, Flash) Ram, Cpu, Sim Card, micro-phone, Bluetooth, Antenna, Speaker, Power detector, RX Filters, etc..
and the following functions.

LCD
Liquid Crystal Display (LCD) display is a thin, flat-visual electronics that use light modulation properties of crystals. This component serves to display an image or any activity of a cell phone.

Key pad
This component serves as a tool that provides
command data to the CPU for processing and will be sent to the component
others involved in the mobile phone.

Battery
Function as a source of electrical current / voltage
required to provide electrical current to the phone.

IC
Interface: Function as a data controller who was ordered by the
CPU for Vibrator, Buzzer, light and act as an automatic switch in the
Mobile.
Audio: audio Ic as a function of processing the incoming voice signals from the IC
RF, amplified and transmitted to the Speaker, amplify the sound vibrations that have been
Mic converted into electrical vibration is then forwarded to the RF IC, running
command from the CPU and the audio IC also contained PCM (Pulse Code Module) and
Functioning EEPROM read code signals coming from the operator to
The phone IMEI is also adapted to store data that are permanent.
Charge: This component works automatically when charging
and it works just to fill the battry voltage is controlled by the CPU
through IC Regulator.
Regulator: Serves to adjust the voltage, in order to set appropriate
needs of each relevant component, as well as pengkontrol of IC
Charging is controlled by the CPU.
Flash: Data storage on Cellular Telephone, the nature
temporary because the data can be changed or added.

RAM
(Random Access Memory) stores data temporarily and help CPU.semakin performance of large-capacity RAM the better CPU performance.

CPU
Data processing centers located in all elements of
or components that work in such rule Cellular Telephone
related components to work as needed and can receive information
of each - each component Example: Order IC Power Supply for
supply voltage / current to all parts of Cellular Telephone, ordered
LCD to display the Activity on Cellular Telephone, ordered the IC
Flash to store the data and release it when needed, check
Sim card data from entering through the IC Power Supply, received the order of data
from the Keypad to the process.

Sim Card
Identity of each of the Cellular Telephone
active depending on the provider's sim card is used, by way of
processed by the CPU included in the phone.

Microphone
A tool to speak and the way it works is
convert sound vibrations into electrical vibrations so that the sound could be accepted
processed by other mobile phone components

Antenna
Serves as a catcher and transmitter signal wave received by the
phone.

Speaker
A device for the release of the previous vote was
electric vibrations and converted into sound by means of the IC Audio, which received
by the CPU to make a sound contained in the mobile phone.

Power detector
Is a transistor that detects, strength of Signal
and transmit data to the CPU for processing and then provide the data
related to all components, especially with hardware-related
Signal

RX filter
Serves as a filter / frequency divider will be
be broadcast before it is sent or reinforced by other components
contained in the mobile phone.

Operating System For Mobile

IOS
Apple's operating systems dominate the mobile operating systems share the use of the Apple handset is quite broad as well as iPhone, iPod Touch, and iPad. Coupled also with Apple gadget users active bersurfing ria in the Internet and use applications that consume data from the Internet plus Apple Marketting is quite unique in my opinion so it is not strange that Apple is above the top share of mobile operating systems

SYMBIAN OS
Before the IOS and Android is not known as of now, mobile Symbian OS Nokia arguably the king of the mobile OS market. But now the fallen are displaced by the IOS and Android. Although begitum, Symbian still has a large enough base in the mobile OS market because too many users. If there are no new innovations in Symbian, maybe too long a mobile OS will be dropped and living history


RIM OS
Who is not familiar with the RIM Blackberry OS. Maybe some people a little surprised to see RIM OS does not occupy a higher position (including me hehe ...), this may be due to the fact that Blackberry users are used by most corporate circles whose numbers are certainly not as much as other types of users, different from the IOS and Android has a larger user market. (Note: only in Indonesia ABG young children love to use my Blackberry i know)

WINDOWS MOBILE OS
Windows = Microsoft. Microsoft munkin arguably the king of his computer's operating system but not for mobile. Windows Mobile is also a new series that I heard not a lot of features that provide unique and well, lost to other competitors. Especially when compared to the Android mobile OS which is actually free, while Windows Mobile OS and IOS with the eleganannya. I think Microsoft should be melakakukan something innovative with their Windows Mobile OS if they want to get rid of their rivals.

ANDROID
Android with a unique logo that is "Robot Ijo" has actually been around a long time, but since the year 2009 with the rapid development of Android shot. Mobile OS from Google is providing a very broad freedom to developers and fully integrated with Google technology. Applications are available for Android also has a lot of Android users have so many variations in using the application in Android. With support from Google, the king of search engines and digital advertising, Android ranks second in mobile OS share.

Palm OS
The operating system used on the output PALM PDA.