Understanding of computers in general is a tool used to process data according to a formulated procedure where the computer itself is an electronic device consisting of several components that work together to form a work system that can run the work automatically based on the sequence of instructions or programs given to it so that it can produce information based on existing programs and data. the definition of the meaning of computers has undergone several changes following the development of the computer itself, the word computer comes from the Greek word "Computare" which means taking into account or combining together. the word "com" means combining in mind or mentally, while the word "putare" means thinking about calculation or merging. in English "To Compute" which means counting. whereas according to some experts the notion of computers is:

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[Soucre image](http://1.bp.blogspot.com/-tupNatfAePU/VDkDijSk4MI/AAAAAAAAAqg/z5IZ2xsEhAI/s1600/Lenovo_3000_J205_Tower.jpg)

>>Understanding according to Robert H. Blissmer computer is an electronic device that is able to perform several tasks such as receiving input, processing input, storing commands and providing output in the form of information. 

**Understanding according to V.C. Hamacher et al computer is an electronic calculating machine that can quickly receive digital input information, process it with programs stored in its memory and produce output understanding information according to Elias M. Awadkomputer is a counter that processes data to be presented in the form of digital data and data analog.**

### Understanding according to Donald H. Sanderes computer is an electronic system for data manipulation quickly and precisely and designed and organized to automatically receive and store input data, process it, and produce output under the supervision of a program instruction steps (operating system) stored in its storage (stored program). 

### Understanding according to Larry Long & Nancy Long computer is an electronic calculating device capable of interpreting also implementing program commands for input, output, calculation, and logical operations. understanding according to Williams, Sawyer computer is a programmable multipurpose machine, which receives data (facts & rough images) and processes or manipulates it into information that we can use. 

### Understanding according to William M. Fuoricomputer is a data processing device that can do large calculations quickly, including arithmetic calculations and logical operations, without human intervention. Such is the understanding of computers according to some experts in their field can you conclude yourself the understanding of the computer put forward by experts so that it becomes a pleasant and readable description.

# Computer function

while for the computer function itself, I take the example in general & I feel personally as a means of communication, a means to facilitate work, as a means of entertainment, business facilities, as a means of education, control means, information facilities and many functions not say it. therefore if in terms of employment at a time like now someone can not use a computer and know the various functions of the computer to speed up its performance will be very inhibiting in the work. because almost all fields of work mostly use computerized system assistance.