P2 Explain the purpose of operating systems
Without an operating system the computer cannot function. An operating system is described as the system software that represents the essential layer between the BIOS and the applications software such as word processor, presentation, database etc. Operating system manages use of the system’s hardware and software such as time sharing and multi-tasking. It provides a consistent way for applications to interact with the hardware and for users to interact with the software and hardware.
Operating system is important because it allows the computer to serve a variety of tasks instead of just one. It allows the user to interact with the computer in a sophisticated way such as managing files.
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CLI stands for Command Line Interface and GUI stands for Graphical User Interface. CLI is the oldest version of user interface where the user type in their commands, telling the computer what to do. The most famous CLI is represented by MS-DOS. CLI requires less memory and it use a low resolution. GUI is based on WIMP (Windows, Icon, Menus and Pointer). GUI is a user friendly interface where it allows the user to resize the windows, control the mouse. They provide wide-ranging input device support. Some of the differences of CLI and GUI are as follows:
Peripheral is any device that can be added to improve the functionality of a computer. For example an input device which is used to put data into the computer such as keyboard, an output device which is used to get data from the computer such as monitor and a storage device which is used to store data into the computer such as hard disks. Windows is compatible with these peripherals. Windows handle the drivers which is used to manage the internal machine devices such as RAM and ROM. RAM stands for Random Access Memory which is known as ‘volatile memory’. When the computer switches off automatically, the RAM stores all the work that the user was using. Sometimes the RAM get full up. This is due to a lot of applications running at the same time so the RAM decides what to keep stored in memory and what to release. On the other hand, ROM stands for Read Only Memory. The computer uses ROM to ‘boot up’ the BIOS. ROM is a type of memory that maintains its data even without the power so when the computer id switched off, it will not lose its
Helps to call the input and output statements. Helps to call some standard library files. Helps in string computations. Defines the time for computations Helps in character
M3 M3: Make and support valid decisions relating to the specification of materials for a tutor provided application Introduction By using the materials identified in P6 I can decide on which material is best suited for a foundation, building frame, guttering, external cladding of walls and wall insulation by looking at each materials properties and performance. This will help decide on which material is best suited for each component of the building as we will be able to find which material is the strongest and long-lasting for the foundation and which is best at stopping heat transfer for the wall insulation. For a construction project to be successful the right material needs to be used for each component in the building to ensure that the
1. Give an example in which the operating system would use a bitmap to manage resource. Answer: Windows, Android like operating systems uses bitmap to manage resources. 2.
In 4th chapter I learned about CPU and other aspects related to it such as RISC and CISC.CPU stands for central processing unit and it is very suitable name for it as it processes the instructions that it gathers from files. Following diagrams explain the basic architecture of CPU: CPU performance is given by the fundamental law: Thus, CPU performance is dependent upon Instruction Count, CPI (Cycles per instruction) and Clock cycle time. And all three are affected by the instruction set architecture. Instruction Count CPI Clock Program x Compiler x x Instruction Set Architecture x x x Microarchitecture
To repair the data in such environment, we confront two main challenges: 1. How to formally define the stability of the data, that is, how to measure the value in this cell is more stable than that in the other cells; 2. How to detect the violation when data continues changing. We define the stability by generating a history relation (or it is assumed to have) w.r.t the original database. The history relation keeps track of the updates history for every cell.
• The four major systems each have its own database and interfaces had to be built for them to all communicate with each other. This is caused information to show in multiple formats and is difficult to reconcile. Providing accurate reports for banking and government regulators is very challenging.
This simply means that when you are using the computers to store important information it can be accessed easily and time won’t be wasted trying to find the correct information, however instead of using LIMS to store information and write on paper it would be a bit difficult to find the correct papers and information which
A Keyboard allows for you to enter different characters such as letters, numbers and symbols. Each key on a keyboard represents a different character on the computer. There are several different types of keyboards, Ergonomic Keyboards, QWERTY Keyboards, and Braille Keyboards. Another example of an Input Device is a Mouse. A Mouse is a Pointing Device which allows you to move the cursor on the computer.
3.3. Assess how to monitor recent changes in health and social care services. Monitoring can be define as a continuing function that aims primarily to provide the management and main stakeholders of ongoing intervention with early indicators of progress, in the achievement of results, it intended to provide inquiry, rather than to provide firm instructions and involves activities from work preformed, through training and conduct of individuals. Interview session, RUH, this can be done through, formal and informal feedback, group forums, questioners surveys, data analysis that can be used to measure aims and objectives, through observation during admission session staff was questioned about admission criteria regarding outpatients, staff
E-Notebook – Unit 3 Gurleen Sandhu Unit 3, Lesson 1: Activity 1: 1. Chose one group from each of the three columns. For each group, complete a search of their web site to determine what the group does within Canada to show their community support. NOTE: if any of the links below do not work, conduct a search on google to get the information you need. charities and non-profit agencies non-profit agencies service clubs multiple sclerosis Big Brothers and Big Sisters Rotary Club arthritis society The Boys and Girls Club Kiwanis easter seals Elizabeth Fry Society Lions Club Canadian Aids Society John Howard Society Canadian Hearing Society
M3 Task: Explain how an awareness of learning styles can aid your development In this task I will be explaining how an awareness of learning styles can aid your development in being an effective learner. There are different types of learning styles that different people have and I’ll be explaining how these aid the learner to progress. For example there are 3 main learning styles these are Visual, Auditory and Kinaesthetic.
A C1.2 Nurses work alongside other multi-disciplinary professionals such as occupational therapists, social workers, psychologists and doctors (O’Carroll and Park 2007). All healthcare professional are regulated by their individual professional bodies and are equipped to work with mental health patients. In reality, there should be no difference in the roles of each staff as the roles of healthcare professional are governed by rules and regulations (NMC, 2015). A MHN and a social worker are different in several ways, particularly if the Social worker is a direct service social worker as against the clinical.
– and explain how you think they help enhance the business owners who use them. List and explain. First of all, I have to say that almost of our daily activities relay on the IT system and we use these systems very much for example: 1- As a student in the university, I use the UOD system for contact the principle or my teachers or even to take exams on the Blackboard or to share the lectures. Also there is a library for E-books and research papers.
If there are so many programs, and the resources are limited, this software called (kernel) also decides when and how long a program should run. It is also called scheduling. It might be very complex to access the hardware directly, since there’re so many different hardware designs for the same type of components. Usually kernels implement somehow level of hardware abstraction to hide the underlying complexity from applications and provide a uniform interface. This also helps application developers to develop
It relies on the SDA autonomy to make decisions on how to analyze, design and implement software applications. The approach initially implements only an agent (role as a developer; SDA) who starts dealing with the development of system by reading the requirements specification given as a physical configuration of the Software under Development (SuD). System operations or missions are also specified. The SDA is able to capture this information and queries its own internal knowledge by means of a reasoner in order to make decisions to design the software that realizes the system logic.