Learn about application software installation methods, including clean, remote, cloud, mobile and network installation. Resources based on Unit F161 (Developing Application Software) for the OCR Cambridge Advanced Nationals in Computing (H029 / H129) AAQ (Alternative Academic Qualification). Qualification: Cambridge Advanced Nationals in Computing (AAQ) Certificate: Computing: Application Development (H029 / H129) Unit: F161: Developing Application Software Watch on YouTube: Application installation 5.2 - Application Software Installation You need to know how different installation processes (e.g. clean , remote , cloud , network and mobile installs) work as well as their advantages , disadvantages and appropriate uses . What You Need to Know Application Installation Application software can be installed using different methods depending on factors such as the number of devices , their location , network availability and the requirements of the users or organisation . Ghost / Image A ghost is a master copy (known as an image ) of a correctly configured system containing the required software and settings , which is created and deployed to other devices . This is used when the same applications and configuration need to be installed on many devices, such as computers in a school or business . It allows many devices to be configured quickly and consistently , reducing repetitive installation work and ensuring they have the same software and settings . However, creating and maintaining the image takes time , devices may need compatible hardware and an error or outdated application in the master image could be copied to every device . Upgrade An upgrade is when a newer version is installed over an existing version , usually retaining the user's existing data , settings and configuration . It is required when users need to move to a newer version of an application without completely reinstalling it . Upgrading is usually quicker and more convenient than a clean install and allows existing settings and data to be retained . But existing problems , unnecessary files or incompatible settings may remain and compatibility issues can occur between versions. Clean Install A clean install is when any previous installation is removed and a completely new copy of the application is installed . It is used when installing an application for the first time , or when an existing installation has serious problems and a fresh installation is required. A clean install provides a fresh installation without problems or unwanted settings from an older version, which can improve reliability . However, it can be more time-consuming and existing settings or application data may be lost if they are not backed up first . Repair/Modify Install A repair install (or modify install ) is when an existing installation is reopened to repair damaged or missing files . Installed features can be added or removed without completely reinstalling the application . This is used when an application is not functioning correctly or when its installed features need to be changed . It is usually quicker than completely reinstalling the application and can retain existing settings and data . But it may not fix more serious problems , and the required installation or repair files must be available . Remote Install A remote installation is when an administrator installs an application onto another device from a different location using remote management software . It is used when IT staff need to manage devices without physically accessing them, such as employee computers across different offices . A remote install saves time and travel , allows centralised management and can enable IT staff to install software on many geographically separated devices . However, it requires network connectivity , appropriate permissions and remote management tools . Connection problems could interrupt the installation. Unattended Install An unattended installation is automated using predefined settings , allowing it to complete without the user responding to installation prompts . It is used when installing the same application and settings on many devices or when installations need to occur without staff being present . Advantages are that it requires little or no user interaction , saves staff time and ensures consistent installation settings across devices. However, it requires careful configuration beforehand, and incorrect predefined settings could cause the same installation problem across multiple devices . Cloud Install With a cloud install , files are downloaded from an internet-based cloud service and then installed onto the device . It's suitable for when users or organisations need to download applications directly over the internet , particularly across different locations and devices . Cloud installs can be accessed from many locations and devices , it does not require physical installation media , can support automatic updates and may allow installations to be scheduled for convenient times . But it depends on a reliable internet connection , interrupted downloads can cause problems, large applications can use significant bandwidth and the device must meet the software's requirements . Mobile Install A mobile install is when an application is downloaded and installed through a mobile app store onto a smartphone or tablet . It's needed for applications designed for mobile devices , such as installing a revision app onto a student's tablet . It is usually simple and convenient for users as app stores can manage installation and updates . Also, applications can be installed directly onto the user's device . However, it requires sufficient storage and a compatible operating system and downloads can consume mobile data . Connectivity problems can interrupt installation and app stores may restrict what applications can be distributed . Network Install With a network install , files are stored in a central location on a local network and accessed by devices connected to that network . It is used when an organisation needs to install software on multiple devices connected to the same network , such as computers around a school . Advantages are that installation files can be managed centrally , physical installation media is not required for each device and many devices can access the same installation files . But it requires a working network connection , installing on many devices can increase network traffic and problems with the network or central server could prevent installations . Q uesto's Q uestions 5.2 - Application Software Installation: 1. Describe how each application software installation method is completed : ghost/image , upgrade , clean install , repair/modify , remote , unattended , cloud , mobile and network installation. [ 2 each ] 2. Give an example of when each installation method would be appropriate to use . [1 each ] 3. Give the advantages and disadvantages of each application software installation method . [4 each ] 4. Explain the differences between remote , unattended , cloud and network installation. [3 ] 5. For installing new software in a school , recommend a suitable installation method and justify why it would be appropriate . [ 4 ] The PC version of Baldur's Gate was originally released on five CDs in 1998 , with players swapping discs during installation . As games became larger , lengthy multi-disc installations became common , sometimes leaving players waiting hours before they could start playing . D id Y ou K now? 5.1 - Testing Topic List 5.3 - Policies

A key term generator to display randomised or sequential terms from the OCR A-Level Computer Science (H446) course. Filter terms by topics and 'favourite' tricky terms to focus on later. Perfect for students learning A-Level Computer Science in UK schools. A-Level Key Terms Generator If you see this message, your school may be using a strict network filter which has blocked it. The tool uses basic JavaScript and should work fine on a home network. Use this tool to check your understanding of the OCR A-Level Computer Science H446 specification's key terms . OCR A-Level Homepage

Learn how to easily embed a video from YouTube into an HTML web page. 8. Videos HTML Guide Watch on YouTube: Embedding a video from YouTube into your web page is very easy. YouTube Videos Find an appropriate video on YouTube and click the Share button underneath the video. Next, click the Embed option. Embed a video onto your web page. Copy the HTML code that is displayed on your screen and paste it directly into your HTML document. Next you can customise your web page with a background colour and different font styles. 7. Head Tags HTML Guide 9. Colours & Fonts

An explanation and introduction to the OCR Level 3 Cambridge Advanced National in Computing specification. This certificate (H029) or extended certificate (H129) is an Alternative Academic Qualification (AAQ). Level 3 Alternative Academic Qualification (AAQ) / Cambridge Advanced National In Computing Computing: Application Development Everything you need to know about this course: The Cambridge Advanced National in Computing: Application Development is a new course that began in September 2025 . It contains both exam and NEA (coursework ) units and focuses on developing software prototypes for applications such as websites , video games and even virtual reality . The video to the left explains all the key details of this new course, but remember, things can change so the OCR website will have the latest updates . Exam Units: Unit F160: Fundamentals of Application Development F160 YouTube Playlist Unit F161: Developing Application Software F161 YouTube Playlist These pages are based on content from the OCR Cambridge Advanced National in Computing (AAQ) specification .

https://www.csnewbs.com/eduqas2020-8-2-understandalgorithms 2.4 - Information Management Exam Board: OCR Specification: 2016 - Unit 2 Management Information System (MIS) An MIS is used to collect, store, analyse and present data for an organisation. The system processes a large amount of data and organises it (such as in databases) so that it can be used for decision making and general data analysis . An efficient MIS can be used to display the financial status of an organisation, highlight areas of improvement and generate sales forecasts based on current data. Specifically, a bank could use an MIS for: Looking at the number of customers that visit each branch. Forecasting takings based on historical data. Profiling customers. Identifying customers who haven’t saved recently to target them for email. Benefits of an MIS: Integrated system: A Management Information System shares a large amount of data from multiple departments within an organisation to produce accurate reports. For example, financial data can be used to generate accurate pay slips. Decision Making: An MIS can be used to inform an organisation's decision making by highlighting areas that need improvement within the company. Powerful analysis: An MIS will use large data sets to provide accurate data analysis that can be used in many different ways by an organisation. Trends and patterns can be identified easily. Backup capabilities: Data can be stored centrally and backed up easily if a disaster occurs. Limitations of an MIS: Cost and installation: An MIS is an expensive tool that needs to be professionally set up and requires technical knowledge to maintain. Requires accurate data: If any data is incorrect or out of date then the analysis will consequently be inaccurate . Potentially disastrous decisions could be made as a result of incorrect data. Training: Employees will need to be trained to use the software accurately for maximum efficiency. Managing Information Data Collection Information can be collected in different ways e.g. paper forms, surveys, stock taking and data capture forms in databases. Example: A tennis club can create a form on their website that allows users to apply for membership and fill in key data such as their name, address and telephone number. Storage Collected data must be stored in a secure and easily-retrievable medium . This could be paper, magnetic, optical and cloud storage. Data is most conveniently stored in a database so that information can be added, removed or updated when necessary. Data must be stored securely to ensure it is protected against loss, accidental or via hacking / corruption. Sensitive data should be encrypted so that others cannot view / alter it without authorised access. Information should also be backed up in case the data is lost. Example: The tennis club can store data in a database using cloud storage as soon as a new member enters their information. Using cloud storage allows the tennis club to access that information from multiple access points and they will only pay for the amount of storage that they need and use. Retrieval Using a database to store information allows users to easily access data so that it can be updated or removed. Searches and queries can be easily performed on all tables in a database to show specific values using certain criteria. Example: The tennis club can submit a query in their member database to display all members whose membership will expire in the next month. They can then use that information to email a reminder to those members. Manipulating & Processing After collection and storage, data must be processed so that it is ready for the final stage: analysis. Data can be exported to other software , such as from a database and into a spreadsheet so that it can be manipulated , sorted and visualised . Graphs and charts can be created on data in a spreadsheet so that patterns and trends are easier to identify . Example: Member information in the tennis club can be exported to spreadsheet software that then allows for graph / chart creation using specific values, such as membership expiry date or membership type. Analysis To analyse the data is to see what can be learned from it, so important decisions can be made. Example: Analysing the charts made in the processing stage will allow the tennis club to identify key patterns. For example, they could see when most members sign up during the year and where the members travel in from. Using these patterns the club can then inform future practice. For example, if not many members sign up in August, a sale on membership can be created at this time to entice new members. Or if most members travel in from a certain area of town a bus system might be set up to help those members travel in more often. Q uesto's Q uestions 2.4 - Information Management: 1a. What is the purpose of an MIS ? [2 ] 1b. Describe 3 ways a bank could use an MIS . [3 ] 1c. Describe the benefits and limitations of an MIS . [10 ] 2. A charity for endangered birds (Bird Rescue UK) is creating a survey to send to scientists to find out which birds need protection status and are endangered in the UK. Describe how Bird Rescue UK can use each stage of data management : Data Collection Storage Retrieval Manipulation & Processing Analysis [3 each ] 2.3 - Quality of Information 3.1 - Data vs. Information Topic List

Learn how to create variables in Python. Try practice tasks and learn through text and images. Perfect for students learning GCSE Computer Science in UK schools. top Python 1c - Creating Variables What is a Variable? A variable represents a value that can change as a program is running . The two parts of a variable are the name (e.g. sweets) and the value (e.g. 8). sweets = 8 print (sweets) = 8 amount of sweets = 8 8sweets = 8 sweets A variable can't contain spaces , it must start with a letter , and you must declare its value before you can use or print it. You always need to print the variable name (e.g. biscuits), not the value (20) as the value can change. Important – When writing variable names, we do not need speech marks. (e.g. type biscuits , not “biscuits”) We use variables because the value of something might change as the program is executed. For example, if someone eats a sweet then the value of our variable changes: sweets = 8 print (sweets) sweets = 7 print (sweets) = 8 7 sweets = 8 print ( Sweets) You must be consistent with capital letters when writing variable names. sweets and Sweets are treated as two different variables. Creating Variables Task 1 ( Age & Pets) Make a variable named age and set it to your current age. On the next line print age . Make another variable named pets and set it to how many pets you have. On the next line print pets . Example solution: 14 2 Variables with Strings (Text) In programming, a collection of alphanumeric characters (letters, numbers and punctuation) is called a string . "Pikachu" is a string. In the example below, pokemon is the variable name that represents the variable value "Pikachu" . pokemon = "Pikachu" print (pokemon) = Pikachu To create a string, we use "speech marks" . Numbers by themselves and variable names do not use speech marks. Each variable can only have one value at a time, but it can change throughout the program. pokemon = "Pikachu" print (pokemon) pokemon = "Squirtle" print (pokemon) = Pikachu Squirtle Creating Variables Task 2 ( Superhero & Colour ) Make a variable named superhero and set it to any of your choice, such as "Spider-Man" . Print the superhero variable on the next line. Make another variable named colour and set it to the colour related to your chosen superhero. Print the colour variable on the next line. Example solutions: Spider-Man Red The Hulk Green ⬅ 1b - Co mmenting 1d - Using Variables ➡

Test your ability to create a more complex program in Python based on a given scenario. Perfect for students learning GCSE Computer Science in UK schools. Extended Task 7 'Guess the Number' Multiplayer Game A primary school teacher wants to create a fun activity for their students to play when it is raining and they have to stay inside during break and lunch. Five pupils can play the game at once. Each player chooses a number between 1 and 100 . Then a random number is generated. Whoever was furthest from the random number is out of the game . The four remaining players then pick a new number . This continues with one player being removed each round until only one player is left and they are the winner. Add your own flair and additional features to your program as an extension, including preventing the same number being chosen by multiple players . For this task, you will need to create a document and include the following sections (with screenshots where appropriate): An introduction to explain the Purpose of your program . A List of Requirements for a successful program. Screenshots of your code (with comments in your code to show understanding). Testing – Create a plan to show how you will test your program and then explanations of any errors that you found and how they were fixed . An Evaluation of what worked, what didn’t, and how you met each of your requirements from your original list. Also, discuss further improvements that you could have made to improve your program. Reminders for this task: You will need to use loops to allow the users to enter their numbers. You may wish to use subroutines to decompose the problem into separate rounds. You will need to import the random library to generate a random number in each round. You will need to compare each number to the randomly selected answer using comparison operators such as > and <. There are multiple ways to approach this program, and your solution might look different from the example. Break the problem down and focus on one part at a time. Example solution: Introduction & Round One Round Two ⬅ Extended Task 6 (Word Game)

Learn how binary numbers can be multiplied or divided using arithmetic shift. Understand the effect the shift has on the binary value. Based on the 2020 Eduqas (WJEC) GCSE specification. 4.4: Arithmetic Shift Exam Board: Eduqas Specification: 2020 What is arithmetic shift? Arithmetic shift is used to multiply and divide binary numbers . The effect of shifting left is to multiply a binary number. The effect is doubled by each place that is shifted . x The effect of shifting right is to divide a binary number. ÷ Shifting by 1 has an effect of 2 . Shifting by 2 has an effect of 4 . Shifting by 3 has an effect of 8 . For example, shifting left by 2 places has an effect of multiplying by 4 . Another example: Shifting right by 3 places has an effect of diving by 8 . How to shift a binary number: An exam question may ask you to arithmetically shift a binary number of up to 16 digits . Q uesto's Q uestions 4.4 - Arithmetic Shift: 1a. Draw a diagram to show the effect of multiplying and dividing a binary number . [2 ] 1b. Draw a diagram or table to show the effect a shift has for each place from 1 to 4 . For example, a shift of 1 place has an effect of 2. [4 ] 2. State the effect of the following shifts: a. Shift right by 2 places. b. Shift left by 1 place. c. Shift left 3 places. d. Shift right by 4 places. [ 1 each ] 3. Shift the following binary numbers and state the effect of the shift: a. 10101011 : Shift left by 2 places. b. 11101100 : Shift right by 3 place. c. 00001011 : Shift right by 2 places. d. 01101110 : Shift left by 1 place. [ 2 each ] Watch on YouTube 4.3 Binary Calculations Theory Topics 4.5 - Character Sets & Data Types

Learn about software development methodologies such as the waterfall lifecycle, agile methodologies, extreme programming, the spiral model and rapid application development (RAD). Based on the OCR H446 Computer Science A-Level specification. Exam Board: OCR A-Level 2.3 - Software Development Specification: Computer Science H446 Watch on YouTube : Waterfall Lifecycle Extreme Programming Spiral Model Rapid Application Development Software development models are step-by-step methods for creating and maintaining software . They are used to keep projects organised , reduce mistakes and make sure the finished program meets the user’s needs . Different models suit different types of projects . Waterfall Lifecycle The waterfall model is a linear and structured approach where each phase is completed one at a time in order . It needs all requirements to be clearly defined at the start , with little to no changes allowed once a phase is finished . This model is best suited for projects with fixed requirements and minimal risk of change . Extreme Programming Extreme Programming ( XP ) is a type of agile methodology that uses an iterative and flexible approach, progressing in small , usable chunks called iterations (or sprints ). It relies on frequent collaboration with stakeholders and user feedback to adapt to changing requirements . This model is ideal for dynamic projects where quick delivery and frequent updates are important. Spiral Model The spiral model combines iterative development and risk management , progressing through repeated cycles of planning , risk assessment , engineering ( development and testing ) and evaluation . Each loop focuses on identifying and addressing risks early in the project. It is ideal for complex and high-risk projects where requirements may change over time . Rapid Application Development The rapid application development ( RAD ) model focuses on quickly building software through iterative development and frequent user feedback . It uses reusable components , time-boxing and constant feedback to speed up the delivery of an effective final product . RAD is best suited for projects that need to be completed quickly and where requirements can evolve during development . Q uesto's K ey T erms Software Development: waterfall lifecycle, agile methodology, extreme programming (XP), spiral model, rapid application development (RAD) D id Y ou K now? Agile development is named after the ' Agile Manifesto ' - a set of principles for software development agreed by a group of developers at a ski resort in Utah , USA in 2001 . 2.2 - Applications Generation A-Level Topics 2.4 - Programming Languages

Test your ability to create a more complex program in Python based on a given scenario. Perfect for students learning GCSE Computer Science in UK schools. Extended Task 4 Hi, Jacob Mortimer here from Cats & Dogs Veterinary Surgery . There was a flood last week, and our computer systems were totally destroyed . I need you to create a program , using a file , that allows my receptionist to: Add new animals to the file . Search through the file and print the details of a specific animal . Allow a specific animal to be removed from the file . Vet Surgery For this task, you will need to create a document and include the following sections (with screenshots where appropriate): An introduction to explain the Purpose of your program . A List of Requirements for a successful program. Screenshots of your code (with comments in your code to show understanding). Testing – Create a plan to show how you will test your program and then explanations of any errors that you found and how they were fixed . An Evaluation of what worked, what didn’t, and how you met each of your requirements from your original list. Also, discuss further improvements that you could have made to improve your program. Reminders for this task: You will need to create a selection of options for the user to choose from. Subroutines and a while true loop may help. Section 10 will help you to open, write and read from files . Section 10c shows how to edit data in a file. You will need to adapt this code and not write the line that has been selected, instead of writing a modified version of it. There are multiple ways to approach this program, and your solution might look different from the example. Break the problem down and focus on one part at a time. Example solution: Entering 1 allows the user to enter the details of a new animal which is saved into the file . Entering 4 will stop the loop and ends the program. Entering 2 allows the user to enter the details of an animal to search for . If the animal is in the file, their details are printed clearly on a new line. Entering 3 allows the user to enter the details of an animal to remove from the file . If the animal is in the file, all lines are transferred into a temporary file except for the line to be removed . ⬅ Extended Task 3 (Blackjack) Extended Task 5 (Colour Collection) ➡

Learn about different types of utility software including firewall, anti-virus, defragmenter, compressor and backup software. Based on the 2016 OCR Cambridge Technicals Level 3 IT specification. 2.3: Utility Software Exam Board: OCR Specification: 2016 - Unit 1 What is utility software? Utility software are dedicated programs used for the maintenance and organisation of a computer system. Antivirus Software Antivirus software is used to locate and delete viruses on a computer system. The antivirus scans each file on the computer and compares it against a database of known viruses . Files with similar features to viruses in the database are identified and deleted . There are thousands of known viruses but new ones are created each day by attackers so antivirus software must be regularly updated to keep systems secure. Other roles of an antivirus: Checking all incoming and outgoing emails and their attachments . Checking files as they are downloaded . Scanning the hard drive for viruses and deleting them . Firewall A firewall manages incoming and outgoing network traffic . Each data packet is processed to check whether it should be given access to the network by examining the source and destination address . Unexpected data packets will be filtered out and not accepted to the network. Defragmentation As files are edited over time they will become fragmented - this is when the file is split into parts that are stored in different locations on the hard disk drive . Files that are fragmented take longer to load and read because of the distance between the fragments of the file. Defragmentation software is used to rearrange the file on the hard disk drive so that all parts are together again in order. Defragmentation improves the speed of accessing data on the hard disk drive. Compression Compression is used to decrease the size of a file . This is beneficial as more files can be stored on a storage device if the size has been reduced. Compressed files can be transferred faster across a network because they are smaller in size . Monitors, Managers & Cleaners Other roles of a firewall include: Blocking access to insecure / malicious web sites . Blocking certain programs from accessing the internet . Blocking unexpected / unauthorised downloads . Preventing specific users on a network accessing certain files . Monitoring network ports . System monitors check the resources of a computer and display how much CPU time and memory current applications are using. Task managers allow a user to close processes and applications if they have stopped responding or if one is using too many resources. Press Ctrl + Alt + Delete on any Windows computer to open Windows Task Manager which is a system monitor and task manager tool. A disk cleaner is used to scan a hard disk drive and remove unused files . This is used to free up space on the hard drive. A disk scanner will scan a hard disc for any errors and attempt to repair them . Backing Up Data A backup is a copy of data that can be used if the original data is corrupted or lost . Backups of all data should be made regularly and stored in an alternative location . Alternatively, imaging (also known as disk cloning ) creates an identical image of a storage drive to be stored in a different location . Q uesto's Q uestions 2.3 - Utility Software: 1. What is the purpose of utility software ? [1 ] 2a. Describe how antivirus software works. [ 2 ] 2b. Describe 3 further roles of antivirus software . [ 3 ] 3a. What is the purpose of a firewall ? [ 2 ] 3b. Describe 3 further roles of a firewall . [ 3 ] 4a. Describe what is meant by defragmentation . [ 2 ] 4b. Explain why defragmentation software is used . [ 2 ] 5. Describe 2 benefits of using compression . [ 2 ] 6a. Explain why system monitor / task management software could be used . [ 2 ] 6b. Explain the purpose of disk cleaners and disk scanners . [ 2 ] 7a. Explain what a backup is and why they are are important. [ 2 ] 7b. Describe what imaging is. [ 2 ] 2.2 - Applications Software Topic List 2.4 - Operating Systems

Learn about the five data types - character, string, integer, real and Boolean. Also learn about casting. Based on the J277 OCR GCSE Computer Science specification (first taught from 2020 onwards). 2.2: Data Types Exam Board: OCR Specification: J277 Watch on YouTube : Data Types What are the different data types? When programming, variables should be given appropriate data types . Character A single character , such as a letter, number or punctuation symbol. Examples: T 8 ? String A sequence of characters , including letters, numbers and punctuation. Examples: Harry Waters 14:50pm Ice Age 4 Integer A whole number . Examples: 475 -8432 56732 Real Boolean A decimal number . Examples: 65.3 -321.1234 909.135 An answer that only has two possible values . Examples: True / False Yes / No 0 / 1 Telephone numbers are always stored as a string , not an integer. Casting Converting the value of a variable from one data type into another is known as casting . Python automatically assumes an input is a string so the int() command is used to cast an input into an integer . Other Python commands for casting include str() and float() . For example: age = int(input("Enter your age: ")) Q uesto's Q uestions 2.2 - Data Types: 1. List the five data types , giving an example of each . [ 5 ] 2. State which data type is most suitable for the following variables: a. Age [ 1 ] b. Surname [ 1 ] c. Height (in metres) [ 1 ] d. First Initial [ 1 ] e. Phone number [ 1 ] f. Right-Handed? [ 1 ] 3. Explain what casting is and give a programming situation in which it would be used . [ 2 ] 2.1 - Programming Fundamentals Theory Topics 2.3 - Additional Techniques