As computer sizes shrink, manufacturers combine peripherals with the system unit in a single container. Selected hnc in computing and systems development units unit 2 computer systems free download as pdf file. The life cycle of the servlet, performance is significantly better, servlets are platformindependent because they are written in java, the servlet is initialized by calling the init method, the servlet calls service method to process a clients request. The handout and slides present the same material, but the slides include answers to the inclass questions. The software is the instructions that makes the computer work. The operating system provides an interface that helps you to interact with. Assignment 1 decoding the jargon steffan green lampton school centre number 142 candidate number 7118. I have justified the choices that i had made on my costing list, to explain why these choices are the best. Antivirus an antivirus software is what protectsprevents the system from attack. Design and implementation of an integrated software suit for academic planning unit. Web technologies pdf notes wt pdf notes smartzworld. Take advantage of this course called basic computer course book download to improve your others skills and better understand computer basic this course is adapted to your level as well as all computer basic pdf courses to better enrich your knowledge all you need to do is download the training document, open it and start learning computer basic for free. The operating system interacts with the hardware and software.
L3 btec it unit 2 computer systems sunday, 11 october 2015. Unit 2 computer systems operating systems an operating system is what a computer uses to allow you to open web browsers and use your utilities and applications. Candidates should develop a mental model of a computer system which comprises hardware and software and in which. An operating system is a suite of program which takes control over the operation of the computer to the level of being able to allow a number of programs to be run on the computer without human interference. The system unit and the box many refer to the rectangular box of the computer as the system unit. Oct 11, 2015 l3 btec it unit 2 computer systems sunday, 11 october 2015 p3 explain the purpose of different software utilities, d1 explain how software utilities can improve the performance of computer systems. Btec level 3 national it student book unit 2 computer systems. It is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical, logical, and inputoutput operations of the system. Computer systems data representation q1 give two reasons why computers use the binary number system. There are many ways in which the computer system can be improved.
The various industrial and home applications work as deciding factors to the required configuration for the requirement. A computer system comprises both hardware and software. An operating system manages any type of activity that is run on the computer, from software, applications, emails and so on all these applications and software are run on a process which is managed by the operating system. Software utilities are an essential piece of equipment in many peoples everyday lives, as they have to deal with a lot of processes and information to be able to go on the internet where there is a risk of getting viruses and bugs from malicious websites and links that may be advertised whilst being on the internet on your computer.
The use of bcd to represent numbers isnt as common as binary in most computer systems, as it. A motherboard or also know as system board, is the main circuit board of the system. Data encryption, decryption and key hash algorithms. A node can be a computer, printer, or any other device capable of sending andor receiving data generated by other nodes on the network. Prepare the mainboard motherboard which is the nvida model. Explain how software utilities can improve the performance of computer systems by george smithmoore 3. The most basic unit of information in a digital computer is called a bit, which is a. This topic introduces computer systems and provides a foundation for the remaining topics in this unit. Software utilitiessoftware utilities are used on a computer system toclear up unwanted files that may slow your systemdown, or even protect your system from unwantedhackers or viruses when you access the web so its allabout keeping your computer safe and runningsmoothly. Take advantage of this course called basic computer course book download to improve your others skills and better understand computer basic this course is adapted to your level as well as all computer basic pdf courses to better enrich your knowledge. Read whatever data the instruction requires from cells in memory. Computer system, which includes components such as central processing unit. Btec level 3 unit 2 computer systems unit 2 computer.
A computer system unit is the enclosure that contains the main components of a computer. There are many different types of operating systems, but the main three that everybody uses are windows, linux and mac os. In fact, that box can contain several peripheral devices such as hard drives, optical drives, and even the monitor. An operating system is the software that supports a computer s basic functions, such as scheduling tasks, using applications, and controlling peripherals. Process management allows more than 1 program to be run at the same time without interference with one another.
It is possible to download file management software to help make managing files easier, to backup important files and to add extra security to files. P2 explain the purpose of operating systems features of an operating system what is an operating system. Execute user programs and make solving user problems easier make the computer system convenient to use. The current systems are outdated and will not work with the new software. Computer or cpu central processing unit the main part, or brains of a computer. The aim of this unit is to enable learners to understand the components of computer systems and develop the skills needed to recommend appropriate systems for business purposes and set up and maintain computer systems. With summaries written by fellow students, you are guaranteed to be properly prepared for. The operating system is held responsible in order to provide constant application program interface api which is an important aspect as it allows a software to developer to write an application on one computer and then it will run on another computer even if the computer types are different or the amount of storage space is different.
Operating system,operating system, computer system organization, computer system operation,common functions of interrupts. Unit 2 computer systems operating systems unit 2 computer. The more progressive operating systems allow a number of applications programs to run alongside and in system without the interference of. Be able to recommend computer systems for a business purpose be able to set up and maintain computer systems unit scenario.
Anna university regulation 20 computer science engineering cse cs6401 os notes for all 5 units are provided below. It processes the input to perform calculations and produce output. Bcom 1st 2nd 3rd year books notes free pdf download. Web to pdf convert any web pages to highquality pdf. Web to pdf convert any web pages to highquality pdf files while retaining page layout, images, text and. Computer science project topics and materials pdf download. I also had to provide the cisco room with 40 workstations, working computers with peripherals and software. Use pdf download to do whatever you like with pdf files on the web and regain control. Assignment 1 p5 and p6 edited unit 2 computer systems. Computer system a computer system is defined as combination of components designed to process data and store files. Selected hnc in computing and systems development units unit 2.
Power supplies will automatically adapt to the main. Ziavras, department of electrical and computer engineering. Jan 17, 2016 use pdf download to do whatever you like with pdf files on the web and regain control. Computer science project topics and materials pdf download 2019 from chapter 15, proposal, abstract, source codes, references and question. Administration from an administrators point of view, a network can be private network which. It is also referred to as a computer case or tower.
Also it needs to be cleaned once every two months or so to ensure it doesnt over heat. Computer systems p1,p2,p3,p4,p5,p6,m1,m2,m3,d1,d2 completed. Software is held either on your computers hard disk, cdrom, dvd or on a diskette floppy disk and is loaded i. Task 3 computer maintainence includes p8 updated assignment 1 p5 and p6 edited 1. A computer s operating system comes after the bios basic input output system. This unit 2 computer systems assignment sample helped me to focus on a computer systems parts both hardware and software and essentially propose a configuration by using the concepts of computer systems. In computers, a utility is a small program that provides an addition to the capabilities provided by the operating system. If you want to assemble the wellliked device, you should use intel g31, gma3100, or amd 780 mainboard. Explain the purpose of different software utilities by george smithmoore 2. Unit 2 computer systems task 1 unit 2 computer systems.
All devices connected arbitrarily using all previous ways to connect each other, resulting in a hybrid structure. The system unit system unit is case that has electronic components of the computer used to process data. It is possible to download file management software to. Psu the power supply unit is one of the most important parts of a computer, without it the computer wouldnt turn on. Btec level 3 computer systems assignment 3 iv 2 vnd5zve9rjlx. Download link for cse 4th sem cs6401 operating system lecture notes are listed down for students to make perfect utilization and score maximum marks with our study materials. It holds many of the crucial electronic parts such as the central processing unit and the memory and without this the computer wouldnt run. Cs6401 os notes, operating system lecture notes cse 4th sem. Although this unit does not extensively cover fault finding and repair, it includes the basic maintenance skills that would normally be expected of most computer users. The part of a computer system that contains the computer screen, where information is displayed. The way in which firewall helps improve the performance of the computer is that it stops the computer from getting any malware from the internet or other networks, it is a virtual wall that stops malware from affecting the functions of the computer. Psu is one of the main internal component within a computer system. Ee314 number systems 2 conversion between decimal and binary.
You have just started a 1 month trial working in a computer repair shop the boss has taken you on because he was pleased with your enthusiasm and general knowledge. Process concept,cpu switch from process to process,addition of medium term scheduling,communications models. These types of computer systems are discussed in detail in section 3. Level 2 will be covered in cst 1a operating systems. To do so effectively they will need to understand the components that make up computer systems. This new class of computers comprises multiprocessors, multicomputers, and vector supercomputers. Explain and justify improvements that could be made to a computer system. Data communication and computer network 2 all devices connected together with a single device, creating starlike structure.
A computer system needs to have these hardware to function. Introduction p4 for the tasks in the next slides i had to. Task 2 you have been asked to produce a presentation for the managing director that recommends an appropriate complete computer system with a windows 10 operating system suited for a business for the given scenario 32 bit or 64 bit depending on the pc. An operating system is the software that supports a computers basic functions, such as scheduling tasks, using applications, and controlling peripherals. D2 explain and justify improvements that could be made to a computer system how the system could be improved. Learning outcomes on successful completion of this unit a learner will. In unpacked bcd, only 10 of the 256 possible bit patterns in each byte are used. Using ftp, one can upload and download files from the remote computer.
The digital communication notes pdf dc notes book starts with the topics covering model of digital communication systems, pcm generation and reconstruction, ask modulator. Power supply power supply unit are used to power up computer components such as motherboard, graphics cards, storage devices and other data input devices. The most important processing device is the central processing unit cpu. Unit 1 computer system and operating system overview over view of operating system what is an operating system. Unit 2 computer systems assignment sample locus assignment. Unit 2 computer systems 1 herefordshire and ludlow. Level 3 btec unit 2 computer systems herefordshire. Here you can download the free lecture notes of digital communication pdf notes dc notes pdf materials with multiple file links to download. Number systems, base conversions, and computer data. A computer system consists of hardware, the physical unit. A program that acts as an intermediary between a user of a computer and the computer hardware operating system goals. A computers operating system comes after the bios basic input output system. Also, distributed computer systems can be developed, where several complete computer. Unit 2 assignment 1 computer systems p1, p2, m1 by c g on prezi.
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