- Workstation- Place where you work
- Tablet Pc- Specially designed for painting in digital or touch screen
- Laptop- Portable pc where you can work
- Mainframe- Host the mains accounts or data of all users
- Werable computer- Like a watch but that has furniture of smartphones
- Desktop computer- Your house computer
- Smartphone- A small pc but portable, you can do calls, send messages and can be an easy access for work
- Supercomputer – Like a Nasa computer, have a very potential work.
HOW COMPUTERS WORK THE MOTHERBOARD AND THE CPU
THE MOTHERBOARD
The motherboard is a circuit board that allows the CPU RAM and other computer hardware components to communicate with each other.
The front of the motherboard contains ports which all the internal components are connected to either directly or via cables. A single socket houses the CPU and multiple slots allow for one or more memory modules to be attached. Other ports allow the hard drive and optical drive to
connect, and the power, reset and LED lights to function.
Also on the front of the motherboard are several peripheral card slots. These slots are where most sound cards and video cards are connected to the motherboard. They are also used to install expansion cards adding features like sound memory and network capabilities.
On the left side of the motherboard, there are other ports which allow most of the computer’s external peripherals such as the monitor, keyboard, mouse, speakers or network cable to connect. Most motherboards also include USB and FireWire ports that allow compatible devices
like digital cameras to connect to your computer.
THE CPU
The Central Processing Unit, also called the CPU or
processor, is the brain of the computer. It is generally a 2 inch ceramic square with a silicon chip whose job is to carry out commands and coordinate the activities that take place within the computer system. Whenever you press a key, click the mouse, or start an application, you are sending instructions to the CPU.
The CPU is attached to a CPU socket on the motherboard, which is covered by the heat sink and a fan in order to absorb the heat from the CPU. The processor consists of two main parts: the control unit (CU) and the arithmetic logic unit (ALU). The control unit causes the circuits and the rest of the components of the computer to execute stored program instructions. The arithmetic logic unit performs mathematical calculations
(addition, subtraction, multiplication and division) and logical operations, which can test for three conditions: equal to (-), less than (<), and greater than (>). The power and performance of a computer is partly determined by the speed of its processor. A system clock sends out signals to measure and synchronise the flow of data. Clock speed is measured in megahertz (MHz), or millions of instructions per second, and gigahertz (GHz), or
billions of instructions per second. A faster processor can execute instructions more quickly.
