Tuesday, September 14, 2010

Chapter one discussed computers, data, information, input & output devices, system unit, storage divices, communication divices, networks, the internet, websites and webpage. Also, there are computer softwares, which has two categories of software. They are system software and application software. The system software has two types of system software that are operating system and untility programs. The chapter includes installing and running programs. Categories of computers are classify in seven classification. They are desktop, mobile computers, mobile devices, games consoles, servers, mainframes, supercomputers and embedded computers.Each title or computer functioned are defined indetail. During our in class time,our Prof. lectured about the frist computers in the State ofILand CA. I will not definedeach device and computer categories at this time.
Our lectures covered software in three parts that are system, application and development to step by step. In the 1940's throughout to 2010, Steve Jobs, Bill Gates, IBM and others before them paved the way for computers. The Thomas Theroist in the 1960's played a major role in computer language. In the 1940's tubes were used in the motherbroad in the system unit. Next was the transmitties,mus chips,semi conductor or (transistor) and the magnetic core. The RAM, The Randon Access Memory is the primary storage that all are the same. 1000 billion is a Trillion. 1 byte=8bites. Some comput 3/2 billion bytes vs bites. The central processing unit is a traffic cop. G means how many pulse per sec. program step by step instruction. The RAM is under the CPU. The C drive is magnetic. In the input device are the mouse, keybroad, and digital camera. The output device are the monitor, speakers, and the printer.
This is an overview of our chapter one lesson. Today's technology with the computers allows the US. and the rest of the world to live our daily lives better than in the past. Although there are still some disadventages that users experience when working with computers.

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