Rugged computer
- 1. Rugged Computer (Military) By Kai , Lucy , Deanna & Taylor Group 10
- 2. What is it O A rugged computer is a computer specifically designed to operate reliably in harsh usage environments and conditions, such as strong vibrations, extreme temperatures and wet or dusty conditions.
- 5. Are they future proof? O Rugged computer's are future proof because they have a protective cases so they will only break when the parts of the computer inside stop working but otherwise they last for ages. O When you build them they should be the fastest they can be , for example , with 16 GB of RAM because you want it to last for as long as possible . Especially if they are using them in the military then they need them to be fast for bombs , etc. O Rugged casing is also very expensive and once its on the computer you cant get it off so you want the computer to last as long as it can so you don’t have to dismantle the case to fix it.
- 6. The CPU CPU stands for Central Processing Unit. This is the brain of the computer which does all the processing and calculations on data inputs and provides output on screen or printer. The CPU consists of several functional units , such as: O The control unit - The control unit provides the timing and control signal to all operations of the computer. It controls the flow of data between the microprocessor and memory. O The arithmetic-logic unit (ALU) Performs arithmetic operations (addition , subtraction , multiplication and division)and logic operations. Logic operations test various conditions to encounter during processing and allow for different actions to be taken based on the results.. O It also uses the Fetch-execute cycle to help different pieces of data be stored and carried out: O Fetch - The CPU uses the virtual hardware path called the Address Bus , The CPU places the next item into the Address Bus to be fetched. The data from this address then moves to the main memory into the CPU by travelling along the hardware bus called the data bus. The Program counter copies the address to the next instruction into the Memory Address Register (MAR). O Decode - The CPU then needs to make sense of the instruction its just fetched. The CPU is designed to understand a different set of commands which are called the 'Instruction set'. Each make of CPU has a different instruction set. The CPU decodes the instruction and prepares various areas for the next step. O Execute - This is when data processing takes place , the instruction is carried out on the data and the result is stored in a register. The Program Counter is reset and the CPU sets itself for another cycle.
- 7. Hard Drive O An internal hard drive is built into the computer and without this your computer wouldn’t be able to operate. O They are designed to store all data , files and media within the computer. O As your computer runs, its processor is constantly performing calculations on the data stored on the computer. The faster the processor is, the faster your computer will run.
- 8. Heat Sink O A heat sink is a device that allows the transfer of heat away from the heat source and is attached to the source to reduce the heat within their safe running temperature limits O Nearly all microprocessors in computers use a heat sink to transfer the heat of the CPU to the aluminium which lets the heat into the air.
- 9. The Mother Board O A motherboard is also known as a main board, system board and logic board. O The function of the computer motherboard is to act as the main circuit board that connects and communicates to all the devices and components attached. O The motherboard also facilitates the communication of devices with each other.
- 10. RAM O RAM stands for Random Access Memory. O It is computer's main memory where programs, application software, and data are stored. The size of the RAM (measured by kilobytes) is an important indicator of the capacity of the computer