Legisaltion

Exam Question

Exam Question

Reliability is how reliable something is; they can rely on it and trust it without having to check up on it every second. For example for astronauts if they are going to space in a rocket the rocket builders needs to build it right and rely on it not to break down in mid-air or break part so that would be an important example, but an less important one would be relying on your children to lock up the house or something small like that.      

The town system needs to be reliable because they can’t be checking up on every single traffic light in the town so their system needs to be reliable and they need to trust it to work all the time because there are always cars on the road.

The council should check them before they use them officially as cars may crash and cause problems if they do not work properly. Also the traffic lights could easily be hacked by a hacker so they need to make sure they have a secure firewall or security onto their system so no-one part from them can get in, this could cause many problems and disruptions to the road so everything needs to be reliable.

People think it’s easy to just shut down a road when the traffic lights don’t work but it can cause a lot of chaos and will disrupt people’s journeys. It wouldn’t just affect cars it would affect buses as well as they would be put on diversion and it will take longer to get to peoples destinations

My comments show how reliable the traffic light system needs to be and how much of an impact they make

Professional Standards

1.Explain what professional standards are, why professional standards are necessary and the problems that arise if there are no standards?
Profesional standards is a standard that works across the globe so that everybody can use the same equipment and its neccesary because if we did not then computers wouldnt link together and connect.The problems that arise if there are no standrds is that tno computers would link or connect together

Glossary:

Computer System - a set of parts including the computer that work all together to perform tasks.

Hardware - a device that is physically connected to your computer.a example is a computer monitor that allows the user to interface visually with the computer.Without it your computer would not exist and your software wouldn't run.

Software - Software means computer instructions or data. Anything that can be stored electronically is software.

Input - Any information or data that's entered or sent to the computer to be processed is considered input. Input or user input is most often sent to the computer using an input device such as a keyboard,mouse,webcam and microphones.

Output - Any information that has been processed and comes from a computer or computer device is considered output. When someone is viewing output, they're seeing it on an output device such as a computer monitor or a hard copy print out e.g monitors,speakers,lights and printers

Process - Commonly refers to a set of instructions currently being processed by the computer processor

Storage - Alternatively referred to as storage, storage media,or storage medium, a storage device is any hardware capable of holding information. There are two types of storage devices used in computers; a primary storage device, such as RAM, and a secondary storage device, like a hard drive. Secondary storage can be a removable, internal, or external storage.

CPU - Consists of 3 major components:

The ALU - carries out mathematical tasks rapidly,performs calculations and logic operations in binary form 1/0 om data from the memory unit.The ALU transforms the digital data and outputs the resulting value

The Memory Unit - consists of a small number of memory registers which will store items of data and send them to the ALU for processing.The result of processing will be copied back to the memory unit for storage

The CU -is in charge of processing.it interprets the software instruction and sends the right data and operation to the ALU . It accepts the result of the processing from the ALU and sends it back top the memory unit. the CU will keep track of the sequence of instruction and the location of each item of data and software instruction in the memory unit

Pseudocode Code - Numbered list on instructions
is a detailed yet readable description of what a computer program or algorithm must do, expressed in a formally-styled natural language rather than in a programming language