Com SCI remark

Thank you sir tom for teaching us these lessons now i understand more about the information stage of the world. I know that i'm lazy but your teachings won't be useless or discarded for the world is already advanced your teachings will change forever our lives and other people.

Installing an OS

To install an Operating Sytem:

     First you should have an installer.(it is best if registered)

System Requirements of the OS :

           Word Size of your Platform

           Processor

           RAM

           Hard Disk

           Graphics Card

Then you should enter the disk/drive then install the OS to your computer if already have an OS you could still install it but it requires additional memory.

Computer system components

These are computer system components

Motherboard (it is called motherboard for all almost all of the components are on the motherboard)

Power Box (this is the voltage regulator of the compute)

RAM (Main Memory)(Random Access Memory)

Processor (CPU)(Central Processing Unit)

Hard Disk (Secondary Memory)(magnetic)

DVD Drive (Optical Drive)

SATA Cables

Video Card (required by some games and videos) 

Network Card

Audio Card

Machine Cycle and Networking

The machine cycle is a basic operation done by the Central Processing Unit, it is also called the processor cycle. It consists of three steps: Fetch. Decode. Execute. For all of this to be done the hardware should be in good condition

A network is a group of two or more computers connected to each other. Internet meaning a inter connection of network.

These are some types of NETWORKS:

          LAN - Local Area Network

         MAN - Metropolitan Area Network

         WAN - Wide Area Network

Also these networks have their own properties although they are transmitted as radio waves.

Computer Hardware Troubleshooting

Computer Hardware Troubleshooting

                 - is to diagnose the hardware of the computer if there are problems such as your audio doesn't work because of the wrong software.

                 It is easier said than done if your a beginner if you are a computer Scientist teacher like our teacher it would be easy as reciting ABC but for us it is not that easy but not that very hard for simple problems only.

Generation and Classification of Computers

Generation and Classification of Computers

Each machine has its own classification from the first to the present and the present is in the 5th.
The first generation of computers were vacuum tubes it was expensive and slow for it solves problems in milliseconds.
The second generation were transistors they were smaller and cheaper but still expensive was faster for their solving time was in microseconds
The third was IC(integrated circuits) was smaller and cheaper than the late generation for its computing time was in nanoseconds.
The 4th was microprocessors they are the most used today and they are fast for their computing time was in picoseconds  and it's faster.
The 5th is artificial intelligence it is very fast for the computer to have a mind of its own you require a large amount of memory and money.

How Software works with Hardware

The computer has its own data processing cycle for the computer to run smoothly.

Digitizing is required by the computer to understand the picture or the movie and they convert it to binary code.Also the computer cannot understand what you in the monitor if it does not digitize the picture.

The machine cycle is the cycle of the computer from the CPU to the input device to the memory or RAM and to the output while it is there it is processing the data by nanoseconds.

Also networking the connection of computers to a single point and vice versa.