Module 3 - Connecting and Communicating Online PDF

Module 2 Connecting and Communicating Online: The Internet, Website, and Media Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-1 to a publicly accessible website, in whole or in part. Objectives Overview (1 of 2) Describe Briefly describe Describe Describe Discuss Describe the Describe features Describe various broadband of browsers and purpose of an IP Internet identify the address and its Discuss the connections components of a Describe ways to relationship to a evolution of the domain name web address compose effective Internet search text Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-2 to a publicly accessible website, in whole or in part. Explain benefits and risks of using online social networks Describe uses of various types of websites Objectives Explain how the web uses graphics, Overview animation, audio, video, and virtual reality (2 of 2) Explain how email, email lists, Internet messaging, chat rooms, online discussions, VoIP, and FTP work Identify the rules of netiquette Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-3 to a publicly accessible website, in whole or in part. The Internet (1 of 3) The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals Figure 2-1 People around the world use the internet in daily activities, such as accessing information, exchanging messages, and conversing with others from their computers and mobile devices. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-4 to a publicly accessible website, in whole or in part. The Internet originated as ARPANET in September 1969 and had two main goals: The Internet Allow scientists at different physical locations to share information and work together (2 of 3) Function even if part of the network were disabled or destroyed by a disaster Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-5 to a publicly accessible website, in whole or in part. The Internet (3 of 3) Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-6 to a publicly accessible website, in whole or in part. Connecting to the Internet (1 of 10) With wired connections, a computer or device Computers without a communications device can physically attaches via a cable or wire to a use a wireless modem or other communications communications device device that enables wireless connectivity Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-7 to a publicly accessible website, in whole or in part. Connecting to the Internet (2 of 10) Figure 2-2 Using a modem is one way to connect computers and mobile devices to the Internet. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-8 to a publicly accessible website, in whole or in part. Connecting to the Internet (3 of 10) Wired Cable Internet service DSL (digital subscriber line) Fiber to the Premises (FTTP) Wireless Wi-Fi (wireless fidelity) Mobile broadband Fixed wireless Satellite Internet Service Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-9 to a publicly accessible website, in whole or in part. Connecting to the Internet (4 of 10) A hot spot is a wireless network that provides Internet connections to mobile computers and devices Figure 2-3 You can create a mobile hot spot using a communications device or by tethering a smartphone. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-10 to a publicly accessible website, in whole or in part. Connecting to the Internet (5 of 10) An Internet service provider (ISP) is a business that provides individuals and organizations access to the Internet free or for a fee Bandwidth is a measure of the capability of a network to send and receive data Megabyte (MB) Gigabyte (GB) Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-11 to a publicly accessible website, in whole or in part. Connecting to the Internet (6 of 10) Figure 2-4 This figure shows how a home user’s request for eBay’s webpage might travel the internet using cable Internet service. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-12 to a publicly accessible website, in whole or in part. Connecting to the Internet (7 of 10) An IP address is a sequence of numbers that uniquely identifies the location of each computer or device connected to the Internet or any other network A domain name is a text- based name that corresponds to the IP address of a server A DNS server translates the domain name into its associated IP address Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-13 to a publicly accessible website, in whole or in part. Connecting to the Internet (8 of 10) Figure 2-5 The IPv4 and IPv6 addresses, along with the domain name for Google's website. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-14 to a publicly accessible website, in whole or in part. Connecting to the Internet (9 of 10) Table 2-3 Popular TLDs TLD Intended Purpose.biz Businesses.com Commercial organizations, businesses, and companies.edu Educational institutions.gov Government agencies.mil Military organizations.museum Museums and individual museum professionals.name Individuals.net Network providers or commercial companies.org Nonprofit organizations.pro Licensed professionals.technology Technology information.travel Entities whose primary area of activity is in the travel industry Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-15 to a publicly accessible website, in whole or in part. Connecting to Figure 2-6 This figure show how a user’s entered the Internet domain name (google.com) uses a DNS server to display a webpage (Google, in this case). (10 of 10) Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-16 to a publicly accessible website, in whole or in part. The World Wide Web (1 of 5) The World Wide Web (WWW), or web, consists of a worldwide collection of electronic documents (webpages) A website is a collection of related webpages and associated items A web server is a computer that delivers requested webpages to your computer or mobile device HTML (Hypertext Markup Language) is a set of symbols that developers use to specify the headings, paragraphs, images, links, and other content elements that a webpage contains Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-17 to a publicly accessible website, in whole or in part. The World Wide Web (2 of 5) A browser is an application that enables users with an Internet connection to access and view webpages on a computer or mobile device Internet-capable mobile devices such as smartphones use a special type of browser, called a mobile browser A home page is the first page that a website displays Current browsers typically support tabbed browsing Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-18 to a publicly accessible website, in whole or in part. The World Wide Web (3 of 5) Figure 2-7 Many websites, such as the Centers for Disease Control and Prevention shown here, provide a mobile version that is designed specifically for display on a mobile browser. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-19 to a publicly accessible website, in whole or in part. The World Wide Web (4 of 5) A webpage has a unique address, called a web address or URL Figure 2-8 After entering http://www.nps.gov/history/preserve-places.htm in the address bar and then pressing the ENTER key or clicking the Search, Go, or similar button in a browser, the U.S. Department of the Interior National Park Service home page shown here is displayed. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-20 to a publicly accessible website, in whole or in part. The World Wide Web (5 of 5) A web app is an application stored on a web server that you access through a browser Web apps usually store users’ data and information on their hosts’ servers Figure 2-9 Web and mobile apps often work together, enabling you to access your content from a variety of computers and devices. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-21 to a publicly accessible website, in whole or in part. Types of Websites (1 of 8) A web search engine is software that finds websites, webpages, images, videos, news, maps, and other information related to a specific topic A subject directory classifies webpages in an organized set of categories, such as sports or shopping, and related subcategories Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-22 to a publicly accessible website, in whole or in part. Types of Websites (2 of 8) Operator Description Examples Explanation Display search art + music Results have both words, art Space or + results that include art music and music, in any order specific words. dog OR Results have either the Display search puppy word, dog, or the word, results that include OR Puppy. Results have the only one word from a dog OR word, dog, or the word, list. puppy OR puppy, or the word, canine. canine Combine search results that include Kalamazoo Results include both words, specific words with Michigan Kalamazoo Michigan, and () those that include (pizza OR either the word, pizza, or the only one word from a subs) word, subs. list. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-23 to a publicly accessible website, in whole or in part. Types of Websites (3 of 8) Operator Description Examples Explanation Exclude a Results include the word, automobile- _ word from automobile, but do not include convertible search results. the word, convertible. Search for an "19th exact phrase Results include the exact “” century in a certain phrase, 19th century literature. literature" order. Substitute Results include any word that characters in * writer* begins with the text, writer place of the (e.g., writer, writers, writer's) asterisk. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-24 to a publicly accessible website, in whole or in part. Types of Websites (4 of 8) There are several types of websites Search engine Online social network Informational and research Media sharing Bookmarking News, weather, sports, and other mass media Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-25 to a publicly accessible website, in whole or in part. Types of Websites (5 of 8) Educational Business, governmental, and organizational Blogs Wiki and collaboration Health and fitness Science Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-26 to a publicly accessible website, in whole or in part. Types of Websites (6 of 8) Entertainment Banking and finance Travel and tourism Mapping Retail and auctions Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-27 to a publicly accessible website, in whole or in part. Types of Websites (7 of 8) Careers and employment E-commerce Portals Content aggregation Website creation and management Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-28 to a publicly accessible website, in whole or in part. Types of Websites (8 of 8) Web publishing is the creation and maintenance of websites Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-29 to a publicly accessible website, in whole or in part. Digital Media on the Web (1 of 7) Multimedia refers to any application that combines text with media Graphics Animation Audio Video Virtual Reality Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-30 to a publicly accessible website, in whole or in part. Digital Media on the Web (2 of 8) A graphic is a visual representation of nontext information Graphic formats include BMP, GIF, JPEG, PNG, and TIFF Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-31 to a publicly accessible website, in whole or in part. Digital Media on the Web (3 of 8) Figure 2-22 Many webpages use colorful graphics to convey messages. For example, the variety of colors, images, shapes, and thumbnails on the San Diego Zoo webpage visually separate and draw attention to areas of the webpage, making the webpage more dynamic and enticing. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-32 to a publicly accessible website, in whole or in part. Digital Media on the Web (4 of 8) An infographic is a visual representation of data and information, designed to communicate quickly, simplify complex concepts, or present patterns or trends Figure 2-23 An infographic presents complex concepts at a glance. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-33 to a publicly accessible website, in whole or in part. Digital Media on the Web (6 of 11) Animation is the appearance of motion created by displaying a series of still images in sequence Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-34 to a publicly accessible website, in whole or in part. Digital Media on the Web (7 of 11) Audio includes music, speech, or any other sound Compressed to reduce file size You listen to audio on your computer using a media player Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-35 to a publicly accessible website, in whole or in part. Digital Media Figure 2-24 Windows Media Player is a popular media player, on the Web through which you can listen to music and watch video. (8 of 11) Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-36 to a publicly accessible website, in whole or in part. Digital Media on the Web (9 of 11) Video consists of images displayed in motion Virtual reality (VR) is the use of computers to simulate a real or imagined environment that appears as a three-dimensional (3-D) space Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-37 to a publicly accessible website, in whole or in part. Digital Media on the Web (10 of 11) Figure 2-25 Users can explore a VR world using a touch screen or their input device. For example, users can explore the inside of the Gemini 7 space capsule, located at the Smithsonian Air and Space Museum in Washington, D.C., from their computer or mobile device. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-38 to a publicly accessible website, in whole or in part. Digital Media on the Web (11 of 11) A plug-in, or add-on, is a program that extends the capability of a browser Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-39 to a publicly accessible website, in whole or in part. Other Internet Services (1 of 11) Email is the transmission of messages and files via a computer network An email program allows you to create, send, receive, forward, store, print, and delete email messages Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-40 to a publicly accessible website, in whole or in part. Other Internet Services (2 of 11) Figure 2-26 This figure shows how an email message may travel from a sender to a receiver. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-41 to a publicly accessible website, in whole or in part. Other Internet Services (3 of 11) An email list is a group of email addresses used for mass distribution of a message Figure 2-27 When you subscribe to a mailing list, you and all others in the list receive messages from the website. Shown here is a user who receives newsletters and alerts from FoxNews.com. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-42 to a publicly accessible website, in whole or in part. Internet messaging services, which Other often occur in real-time, are communications services that notify Internet you when one or more of your Services (4 of established contacts are online and then allows you to exchange 11) messages or files or join a private chat room with them Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-43 to a publicly accessible website, in whole or in part. Other Internet Services (5 of 11) Figure 2-28 With Internet messaging services, you and the person(s) with whom you are conversing are online at the same time. The conversation appears on all parties' screens at the same time. Shown here is Facebook messenger. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-44 to a publicly accessible website, in whole or in part. A chat is a real-time typed conversation that takes place on a computer or Other mobile device with many other online users Internet Services A chat room is a website (6 of 11) or application that permits users to chat with others who are online at the same time Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-45 to a publicly accessible website, in whole or in part. Other Internet Services (7 of 11) Figure 2-29 As you type, others in the same chat room see what you have typed. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-46 to a publicly accessible website, in whole or in part. Other Internet Services (8 of 11) An online discussion is an online area in which users have written discussions about a particular subject Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-47 to a publicly accessible website, in whole or in part. Other Internet Services (9 of 11) Figure 2-30 Users in a line discussion read and reply to other user’s messages. Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-48 to a publicly accessible website, in whole or in part. Other Internet Services (10 of 11) VoIP (Voice over IP) enables users to speak to other users via their Internet connection Source: Microsoft Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-49 to a publicly accessible website, in whole or in part. Other Internet Services (11 of 11) FTP (File Transfer Protocol) is an Internet standard that permits file uploading and downloading to and from other computers on the Internet Many operating systems include FTP capabilities An FTP server is a computer that allows users to upload and/or download files using FTP Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-50 to a publicly accessible website, in whole or in part. Netiquette Netiquette is the code of acceptable Internet behavior users should follow while on the Internet Figure 2-31 Some Copyright of the rules of netiquette, with respect to online communications. © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-51 Source: Microsoft to a publicly accessible website, in whole or in part. Summary Evolution of the Internet The web Various types of websites and media Other services available on the Internet Netiquette Copyright © 2018 Cengage Learning®. May not be scanned, copied or duplicated, or posted 2-52 to a publicly accessible website, in whole or in part. DIGITAL LITERACY AND COMPUTER AND MOBILE DEVICES Lecturer: Jay A. Abaleta  What is Mobile Device?  A mobile device is a general term for any type of handheld computer. These THE MOBILE devices are designed to be extremely portable, and they can often fit in your DEVICES hand. Some mobile devices—like tablets, e- readers, and smartphones— are powerful enough to do many of the same things you can do with a desktop or laptop computer. Tablet computers  Like laptops, tablet computers are designed to be portable. However, they provide a different computing experience. The most obvious difference is that tablet computers don't have keyboards or touchpads. Instead, the entire screen is touch-sensitive, allowing you to type on a virtual keyboard and use your finger as a mouse pointer. THE MOBILE DEVICES E-readers  E-book readers—also called e- readers—are similar to tablet computers, except they are mainly designed for reading e- books (digital, downloadable books).  Notable examples include the Amazon Kindle, Barnes & Noble Nook, and Kobo. THE MOBILE DEVICES Smartphones  A smartphone is a more powerful version of a traditional cell phone. In addition to the same basic features—phone calls, voicemail, text messaging— smartphones can connect to the Internet over Wi-Fi or a cellular network (which requires purchasing a monthly data plan). THE MOBILE DEVICES Module 1 – Digital Literacy Computer Basics Advantages and Disadvatages Functionalities of a Computer Advantages of Computer  High Speed  Accuracy  Storage Capability  Diligence  Versatility  Reliability  Automation  Reduction in Paper Work and Cost Disadvantages of Computer No IQ Dependency Environment No feeling Application of Computer in Various Fields Business Banking Insurance Application of Computer in Various Fields Education Marketing Healthcare Application of Computer in Various Fields Engineering Military Communication Design Application of Computer in Various Fields Government Generations of Computer The main features are: 1stGeneration: 1946 – 1959  Vacuum tube technology Vacuum Tube  Unreliable  Supported machine language only  Very costly  Generated a lot of heat  Slow input and output devices  Huge size  Need of AC  Non-portable  Consumed a lot of electricity Generations of Computer The main features are:  Use of transistors  Reliable in comparison to first generation 2nd Generation: computers 1959 – 1965 Transistor  Smaller size as compared to first generation computers  Generated less heat as compared to first generation computers  Consumed less electricity as compared to first generation computers  Faster than first generation computers  Still very costly  AC required  Supported machine and assembly languages Generations of Computer The main features are: 3rd Generation:  IC used 1965 – 1971 Integrated Circuit  More reliable in comparison to previous two generations  Smaller size  Generated less heat  Faster  Lesser maintenance  Costly  AC required  Consumed lesser electricity  Supported high-level language Generations of Computer The main features are:  VLSI technology used 4th Generation:  Very cheap 1971 – 1980 VLSI Microprocessor  Portable and reliable  Use of PCs  Very small size  Pipeline processing  No AC required  Concept of internet was introduced  Great developments in the fields of networks  Computers became easily available Generations of Computer The main features are:  ULSI technology 5th Generation:  Development of true artificial 1980 – Onwards ULSI intelligence Microprocessor  Development of Natural language processing  Advancement in Parallel Processing  Advancement in Superconductor technology  More user-friendly interfaces with multimedia features  Availability of very powerful and compact computers at cheaper rates Types of Computer Personal Computer (PC) Workstation It is a single user computer It is also a single user computer system, similar to personal system having moderately computer however has a more powerful microprocessor powerful microprocessor Types of Computer Mini Computer Main Frame It is a multi-user computer system, It is a multi-user computer system, capable capable of supporting hundreds of of supporting hundreds of users users simultaneously. simultaneously. Software technology is different from minicomputer. Types of Computer Supercomputer It is an extremely fast computer, which can execute hundreds of millions of instructions per second. A Computer.... takes input processes it according to stored instructions produces results as output Data vs Information A A – your grade in the exam 2, 4, 23, 30, 31, 2, 4, 23, 30, 31, 36 36 – Next week’s Lotto numbers Bit – Single Binary Digit – Can have value 0 or 1, and nothing else – A bit is the smallest possible unit of information in a computer Groups of bits can represent data or information – 1 bit - 2 alternatives – 2 bits - 4 alternatives – 3 bits - 8 alternatives – 4 bits - 16 alternatives – n bits - 2 alternativies – 8bits - 2 = 256 alternatives – a group of 8 bits is called a byte Hardware The physical (electronic and mechanical) parts of a computer or information system Peopleware anything that has to do with the role of people in the development or use of computer software and hardware systems Software The programs that control the operation of the computer system Components of Computer Systems - Hardware Input Systems Keyboard » Most common input device » QWERTY Mouse » Cursor manipulation device » Trackball Components of Computer Systems Touch Screens Pens Stylus Components of Computer Systems Magnetic Ink Character Bar Code Readers Recognition (MICR) Components of Computer Systems Output Systems Soft Copy Modems » Voice synthesis – Modulator-Demodulator » Music – Allows computers to » CRT (Cathode Ray Tube) communicate over » LCD (Liquid Crystal telephone lines Display) Components of Computer Systems Storage Systems Memory Optical Disks – Stores the bits and bytes (instructions – 15,000 tracks per inch and data) – Digital code read by laser – ROM - Read Only Memory – 650 Mbytes in a 4.75” plastic platter » Non-volatile – CD ROM; WORM; Erasable Disks » Won’t disappear when power is off – RAM - Random Access Memory » Read/Write Memory » Volatile » SIMMs (Single Inline Memory Modules): 4 Mbytes in a stick of chewing gum Components of Computer Systems Magnetic Disk – A circular platter coated with magnetic material Floppy Disk – 3.5”; 360kbyte to 2.88Mbytes (1.44 is common) Hard Disk – 1.3”, 1.8”, 2.5”, 3.5”, 5.25”; 120Mbytes to over 6 Gigabyte (6 Gbyte) Components of Computer Systems - Software Operating Systems Operating System is the software that manages the overall operation of the computer system Main purpose is to support application programs Hide details of devices from application programs Components of Computer Systems Operating Systems DOS (Disk Operating System) Windows – Single-tasking – GUI – Command-driven – Can run DOS programs – Huge number of applications written for – Has network services DOS – Has multimedia extensions – Does not require powerful computer – Requires large amounts of – No network services memory, disk space, powerful – No multimedia extensions processor – Designed for the Intel 80x86 processor – Designed for the Intel 80X86 processors Components of Computer Systems Operating Systems Macintosh OS – Multi-tasking – GUI called finder – Very easy to use – Very graphically oriented – Has network services – Has multimedia extensions – Designed for the Motorola and PowerPC processors Components of Computer Systems Operating Systems User interfaces Graphic User Interfaces (GUIs) – Software which is responsible for passing – Pictures, graphic symbols (icons), information to and from the person using to represent commands the program (the user) – Windows: a way of ‘looking in’ – Communicates with and controls the on several applications at computer once – Three types of user interface: » Graphic user interfaces » Menu driven interfaces » Command driven interfaces Components of Computer Systems Application Software Special Purpose General Purpose – Payroll – Word Processing (e.g. MS Word) – Accounting – Desktop Publishing (e.g. Quark Xpress) – Book-Keeping – Spreadsheets (e.g. MS Excel) – Entertainment – Databases (e.g. MS Access) – Statistical Analysis – Graphics (e.g. MS Powerpoint) – E-mail (e.g. MS Mail) – Internet Browsers (e.g. Firefox, Explorer) Components of Computer Systems Application Software Integrated Software – Goal: effective sharing of information between all applications – For example: MS Office: Excel, Word, Powerpoint, Access can all use each other’s data directly – Object Linking & Embedding (OLE) – Information is stored in one location only – Reference is made to it from another application – This reference is known as a link – Don’t actually make a copy (cf. hypertext, multimedia, WWW) The Processor The processor is a functional unit that interprets and carries out instructions Also called a Central Processing Unit (CPU) Every processor has a unique set of operations LOAD ADD STORE The Components of a Processor Input ME MORY Output CPU Control Arithmetic Unit & Logic Unit Registers ALU The Control Unit Registers Supervises the operation of the processor Register: a storage location Makes connections between the various components inside the processor Invokes the operation of each component Control unit registers: Can be interrupted! – current instruction – location of next The Arithmetic & Logic Unit instruction to be executed ALU – operands of the Provided the computer with its computational instruction capabilities ALU registers: Data are brought to the ALU by the control unit – store data items ALU performs the required operation – store results End of Presentation

Module 3 - Connecting and Communicating Online PDF

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