T level

Components and applications of physical computing systems Chassis (case) the housing that organises and protects the components, it is important to consider the form factor when getting a chassis, this includes, size, shape and physical specs, it is also useful for aesthetics, noise reduction of the fans, cooling, and protection from dirt etc Optical drive a computer disk drive that reads on writes data from optical disks such as CDs or DVDs the optical drive rotates at a constant speed and the data is read using a laser which is spread out across the inserted disk using the lens embedded in the optical drives head Motherboard motherboards have different form factors, and are the main printed circuit board within a computer, they contain busses , as well as hold all the components eg CPU, RAM, heatsink, RAM, BIOS and all ports Central processing unit the CPU is the electronic circuitry that carries out instructions of a computer by performing arithmetic, logic, control, input/output op...

 The measurable value of digitisation in business sales and marketing Enhanced market research businesses can review multiple channels and touch points (where the customer has in any way contacted the business) to capture relevant data, and use data online to analyse the consumer's needs and preferences to deliver personalised product recommendations  Increased opportunities for brand promotion businesses can use social media to promote their brand, it allows businesses to get to potential customers more easily, as well as answer queries, and share news and promotions, this has benefits such as global access target audience reached more easily cost effective advertisements tools to analyse advert CTR even playing field, as small companies can also now advertise however, there are also disadvantages to online marketing misinterpretation of posts online criticisms are as widespread increased competition time and skills are needed to manage social media accounts increased communi...

Capital Gains - tax on the profit of selling a non-investing business asset Business environments Business to customer (B2C) the business sells its products/services directly to customers eg restaurants, retail Business to Business (B2B) the business sells its products/services directly to other businesses to help them function eg supplying raw materials, transport etc Business to many when a business provides both B2C and B2B  Key factors that influence the Business Environment anything that involves the government can have an effect on the business environment Political Factors Government policy - Governments can change the way businesses have to function, as well as influencing the economy, this happens when the government introduces new legislations, or lowers/raises taxes/spending Foreign trade policy - changes in policies can make it easier or harder to trade internationally, these policies can include things such as tariffs, or subsidies for local producers eg farmers or fis...

1.    W = 0.1 2.    L = 0.1 3.     4.    While (W <> int) 5.    { 6.        INPUT W 7.    } 8.     9.     While (L <> int) 10.  { 11.       INPUT L 12.   } 13. 14.   A = W*L 15. 16.   OUTPUT A

     Types of businesses Public - companies owned by the government/government agencies, EG schools, the NHS Private - companies owned by individuals, they are profit driven and usually have shareholders and investors NGO - non-governmental organisations are non-profit, they usually rely on volunteers for labour, they can either be operational GNOs - focusing on development of public places, or advocacy NGOs - who seek to influence public policy Charity - usually no profit motive, with the motive being to benefit society instead State-owned companies - companies where the government holds significant stake in the company, can be majority or all, so are typically controlled by the government , they often server public interest e.g. cheap products, but can also be profit driven. examples are water companies, transportation etc Sole trader - are owned by a single person, that person has total control over the business, and they are liable for any debt the company has Limited...

Impacts of digital technology on society Loss of privacy the value of data is rising in the digital era, along with personal info, we exchange our personal info to be able to make our lives easier with smart technology Digital footprint digital footprint is the impression we create of ourselves through our online presence, this can be active, and include your posts, followed accounts, friends, etc, or be a passive digital footprint, this can include records of browsing, websites you may visit, and purchases. passive digital footprint is used to give you advertisements Surveillance Cameras in public spaces, and buildings such as shops, have become so common, it is now considered the norm, these are to monitor the safety of the public, some people think this goes against their freedom against data collection employers also use digital technologies to monitor their workforce, this includes monitoring how employees use work systems, if they use internet for personal reasons during work hou...

 Different types of structured English Sequential structure A block of instructions with no branching, this is the most basic form of Structured English and therefore is the easiest to understand. to complete it, go through each line, and complete the action. Decision structure uses IF statements, meaning some actions can be ignored IF the following condition is true or not to complete it, you would need to know if the condition is true or not, to know whether to ignore certain steps Case structure a form of decision structure where the cases are mutually exclusive, these use ELSEIF Iteration Blocks of statements that are repeated until they are complete Example of Structured English, to find an average of 5 numbers. INPUT 5 numbers ADD the 5 numbers together DIVIDE the new number by 5 OUTPUT the final number Source and more info at  https://www.w3computing.com/systemsanalysis/writing-structured-english/ an Application chess bots - these use algorithms to take the current posi...

 Algorithms An algorithms is a set of step by step instructions, to solve a problem it can be used to automate calculations, sort arrays, etc they are easy to understand, and due to being broken down into simple instructions, can be easily converted to code however, they can be time consuming to create, and may be difficult to make for more complex tasks the characteristics of algorithms are: finiteness the algorithm should solve the problem in a given number of steps, an algorithm cannot have an infinite number of steps, and should have an end Unambiguousness the steps in an algorithm must be clear and precise, each user should be able to understand what the algorithm does inputs and outputs inputs and output in the algorithm should be clearly defined, each algorithm should have at least 1 output, the output should meet the defined purpose of the algorithm Logical sequence of steps the algorithm's steps should follow a logical sequence, it should be step by step, with no going bac...

Key terms Ethics - the set of rules of right and wrong, defined by an organisation as a whole, combining the morals of everyone morals - an individuals rights and wrongs, in their opinion Intelligent software agents - autonomous programs that can be aware of and interpret data and then take action to achieve goals, all without permanent input from a user bot - and autonomous program that can interact with systems or users machine learning (ML) - the process of getting computers to learn, think, and act like humans. How does technological use impact businesses Changes in face to face communication online work can limit or even completely remove face to face communication Emails can be used, however tone of the message can be not as clear, it ca also lead to emails being sent to wrong people, leading to confusion video calls for meeting can be put in place, but they are not as good as regular face to face communication - they do however alloy for international meeting this could low...

  file systems what is a file system a file system can exist in almost all forms of data storage, they are databases of information, they contain a path finder, and info about the type of file, this allows the user to know where the file is stored for quick retrieval eg. C:/Program Files (x86)/steam similar to a paper filing system, the files are in folders, called directories, these can contain multiple files that are kept in blocks on unused storage space, known as sectors - this is known as a hierarchical file structure metadata metadata helps users and the device identify info about the file, it can be descriptive - this includes file name, location, size, time of last modification, and creator of the file structural - info about how it is put together, eg no of pages  administrative, info about the file type, how it was created, and who can access it meta data can be found by going to the file, and either using alt+enter, or by right clicking and selecting the "properties...

  Processors and their uses AMD Ryzen - more expensive, faster processors Intel - cheaper budget option, still very fast Qualcomm - manufactures processors for mobile devices ADD MORE     fetch decode execute, how stuff works more in depth