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M1 -Compare the features and functions of different operating systems Top of Page Comparison of Operating Systems Comparison of Operating Systems Microsoft Windows® Microsoft Windows® is a GUI based family of operating systems which can be used for PC’s and laptops. Windows® is typically used for computers in companies, schools and homes as it is an easy operating system to learn how to use. The are 25 main Windows® operating systems –most of which have multiple editions with extra features –which have been developed since Microsoft first released the Windows® operating system in 1985; versions include: Windows® 1.0, 3.0, 98, 2000, XP, Vista, 7, 8 and Windows® 10 (due to be released mid 2015). Windows® is one of the most commonly used operating systems around the world and is estimated to be on 80%-90% of computers. Strengths

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P1 Page 2 Primary storage Secondary storage Tertiary Storage Peripherals Backing storage Portable and fixed drives Peripherals Peripherals fall into two groups. Which are: Output devices such as a monitor, printer or plotter present the results of any processing to the user. Input devices such as a keyboard, camera or scanner provide a way for the user to put data into the processor and to give commands (e.g. a pointing device like a mouse to click on the application you want to open, or to select an option from a menu). According to their type (serial or parallel), input and output devices need to be connected to the processor using appropriate cabling (e.g. coaxial, optical, twisted pair) to an appropriate port; or configured as wireless devices. Backing storage There are three types of backing storage which are Primary storage, Secondary storage and Tertiary storage. Primary Storage The primary storage is located within the computer, is relatively small and the majority of it is lost when the computer is switched off. Secondary Storage secondary storage device or backing store is needed, such as a hard drive Solid-state drive SD card DVD Tape drive USB thumb drive CD Floppy diskette Hard drive Tertiary Storage secondary storage device or backing store is needed, such as a hard drive Primary storage Secondary storage Tertiary Storage Portable and fixed drives In the design of early computers, the drives (i.e. the readers) were located within the casing. Hard disks were fixed within the casing but other media formats (such as magnetic tape and floppy disks) provided portable ways of storing data. More recently, external hard drives have been developed and this has brought with it the option to move a hard drive (and the hard disk within it) from one computer to another. Similarly, pen drives and card readers, both of which plug into the USB port, provide a portable solution to data storage. With the increased capacity and compact format of these devices, it is now possible to enjoy portability for large amounts of data.

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P1 Page 3 Performance factors Performance factors When deciding what storage device to use, a number of factors need to be taken into account. How much data will the device hold? What is its maximum capacity? How fast can the data be stored on (written to) the device? How fast can the data be retrieved (read) from the device?The performance of a system can be monitored using a profiler.

Dichiarazione di accessibilità - Componenti del computer URL: https://prichardproduction.wixsite.com/computer-components Computer Components si impegna a garantire l'accessibilità digitale alle persone con disabilità. Miglioriamo continuamente l'esperienza dell'utente per tutti e applichiamo gli standard di accessibilità pertinenti. Sforzi per sostenere l'accessibilità Computer Components adotta le seguenti misure per garantire l'accessibilità: L'accessibilità fa parte della nostra missione. L'accessibilità fa parte delle nostre politiche interne. L'accessibilità è integrata nelle nostre pratiche di approvvigionamento. È stato nominato un responsabile dell'accessibilità o un funzionario. Per i dipendenti è prevista una formazione continua sull'accessibilità. All'interno dell'organizzazione esistono chiari obiettivi e responsabilità di accessibilità. All'interno dell'organizzazione esistono metodi formali di garanzia della qualità dell'accessibilità. Stato di conformità Standard di accessibilità attuale del sito: WCAG 2.1 livello AAA Stato di conformità del contenuto attuale: Totalmente conforme: il contenuto è pienamente conforme allo standard di accessibilità senza eccezioni. Compatibilità con browser e tecnologie assistive Questo sito è progettato per essere compatibile con i seguenti browser: Cromo Internet Explorer (Windows) versioni da 7.0 a 9.0 Questo sito è progettato per essere compatibile con le seguenti tecnologie assistive: Lettore schermo JAWS Tecnologie L'accessibilità di questo sito si basa sulle seguenti tecnologie per funzionare: HTML Metodi di valutazione Computer Components ha valutato l'accessibilità di questo sito utilizzando i seguenti metodi: Autovalutazione: il sito è stato valutato internamente dall'azienda o organizzazione. Processo di feedback Accogliamo con favore il tuo feedback sull'accessibilità di questo sito. Vi preghiamo di contattarci tramite uno dei seguenti metodi: Telefono: 07708174265 E-mail: info.computercomponents@inbox.ru Miriamo a rispondere al feedback entro 5 giorni lavorativi. Approvazione formale di questa dichiarazione di accessibilità Questa dichiarazione di accessibilità è approvata da: Componenti per computer Ian Prichard Owener

Componenti per computer Il tuo compito è collaborare con le Risorse Tecniche per rinnovare una serie di sistemi informatici che il Collegio intende mettere a disposizione per l'uso domestico. Il tuo primo compito prima di poter iniziare è mostrare al responsabile delle risorse tecniche che hai intrapreso e i componenti dei sistemi informatici. Come studente del programma IT nazionale BTEC, ti ha chiesto di creare alcuni materiali per lo sviluppo del personale che possono essere utilizzati nella formazione.

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P1 Processors Motherboard BIOS PSU Hard drive configuration and controllers DVD drive and DVD drive holder Specialised cards Questo è il processore per Windows Questo è il processore per Apple Questo è il processore per Linux Questa è la scheda madre su cui vanno tutti i componenti. La scheda madre è il componente più importante all'interno di un sistema PC. È un PCB che ospita molte delle parti essenziali del PC e tutte le connessioni tra il PC e la periferica lo attraversano. Questo è il BIOS che è il BIOS ROM. Il BIOS è una raccolta di utilità software che fa parte del sistema operativo. Di solito si trova su un chip ROM fornito con il computer, chiamato BIOS ROM. Che sta per Basic Input/Output System Questa è la frusta PSU che fornisce l'alimentazione al computer Esempi di controller sono SATA, IDE, EIDE, master, slave SATA sta per collegamento di tecnologia avanzata seriale. Si tratta di un'interfaccia bus del computer per il collegamento di adattatori bus host a dispositivi di archiviazione di massa come unità disco rigido e unità ottiche. IDE sta per elettronica di azionamento integrata. Si riferisce a un'interfaccia elettronica standard tra i percorsi dati (o bus) della scheda madre di un computer e i dispositivi di archiviazione su disco del computer, basata sullo standard bus a 16 bit IBM PC ISA (architettura standard di settore). EIDE sta per elettronica di azionamento integrata avanzata. mentre EIDE supportava una velocità fino a 16,6 MBps. Tuttavia, alcune fonti elencano la velocità di trasferimento in media circa quattro volte più veloce. Master è un modello di comunicazione per dispositivi hardware in cui un dispositivo ha un controllo unidirezionale su uno o più dispositivi. Slave è un modello di comunicazione per dispositivi hardware in cui un dispositivo ha un controllo unidirezionale su uno o più dispositivi. Questa è l'unità DVD in cui inserisci i DVD e i CD. Questa è l'unità DVD Specialised cards Expansion slots allow the life of a computer to be extended, since new technology can be added as it becomes available. They allow you to add specialised cards to your PC, e.g. for a modem, a sound card and/or an NIC

P3 explain the purpose of different software utilities Page title Explan the Purpose of different software utilities Virus protection Firewalls Cleanup tools Drive formatting What is the purpose of different software utilities Software utilities offer security in the form of virus protection and firewalls Virus protection Anti virus software is used to detect, prevent and remove malware, it can also prevent computer viruses, computer worm, Trojan horses, spy-ware and ad ware. Anti virus software can also impair a computers performance. Button Firewalls Firewalls build a protective barrier around computers that are connected to a network, so that only authorised programs can access data on a particular workstation. The user can control exactly which software is allowed to pass data in and out of the system. For example, automatic updates might be allowed for some installed software. Button Cleanup tools Over a period of time, a PC becomes cluttered with data that you do not need. Removal of cookies: Each time you visit a new website and register so that you can receive newsletter updates or make a purchase, a cookie is most likely left on your PC so that the site can recognise you the next time you visit. Internet history: Each time you request a page on the Internet, a copy of that page is retained in the Temporary Internet Files folder. Defragmentation: Each time you save a file, the space on your hard disk begins to fill. When files are deleted, some space becomes available, which appears as ‘gaps’ on the map of the disk. Button Drive formatting For storage media to be recognised by your computer so that it can be used to store data files, it has to be initialised or ‘formatted’. Physical (low-level) formatting tests the surface, scanning for imperfections and setting aside those sectors that cannot be used. Logical (high-level) formatting prepares the disk by setting up a file system which then defines how files and folders will be stored and accessed. Button

P2 spiegare lo scopo dei sistemi operativi The purpose of the operating systems is to operate the computer and to manages hard ware and software resources f computer. The resources include processor, memory and disk space etc and It provides a consistent way for application to interact with the hardware without knowing all the details of the hardware.