Computers, Part Of Your Life - Grade 11 Textbook PDF

Computers, part of your life – Grade 11 It's all about ICT Module 1.1 Contents 3 The role and value of ICT in the workplace CAT – a most valuable subject! The computer Protecting your information Test and improve The role and value of...

Computers, part of your life – Grade 11 It's all about ICT Module 1.1 Contents 3 The role and value of ICT in the workplace CAT – a most valuable subject! The computer Protecting your information Test and improve The role and value of 4 ICT in the workplace  How ICT influence one’s life 5 and life styles Jobs we do Way we store and watch photographs Way we entertain ourselves Way we shop and do banking Way we communicate Way we interact with friends Way we obtain and use information QUICK REVISION  How ICT influence 6 one’s life and life styles Communication ‘Over- availability’ Social networking sites Instant messaging ‘Blog’ and e-mails Always available – never switched off! QUICK REVISION  How ICT influence 7 one’s life and life styles Access to information Informatio   TV/ Radio n Find quickly E- mail Determine if source reliable Analyse  Cellpho ne calls and summarise WW W  SMS / QUICK REVISION MMS   How ICT influence 8 one’s life and life styles Leisure Movies, music and printed media available via Internet Video on Demand –from online storage Internet TV not using radio signals Online travel bookings Online computer games Fitness programs in front of TV with gaming console QUICK REVISION So what role does ICT 9 play in the workplace? Work wherever we have access to computer (and internet). Communicate more effectively. Store and process vast quantities of data to make more informed decisions. Identify and adapt to changing trends (e.g. sales). Perform tasks that are difficult or dangerous for humans to do. So what role does ICT 10 play in the workplace? Perform repetitive mechanical actions with consistent quality. Empower individuals (smaller companies that make effective use of ICT can compete globally). ICT allows us to do all these things more quickly and with less manpower. So what role does ICT 11 play in the workplace? Also a negative role… Requires constant upgrading of skills, hardware and software. Smaller pools of highly-skilled ICT workers replacing large numbers of staff. ICT employees working longer hours to meet the expectations of customers.  CAT – the most 12 valuable subject! CAT – the most valuable subject! 13 Use computer s to solve problems CAT teache s you Use to: computers Easily to study learn to and/or do use new research software CAT – the most valuable subject! 14 Fashion, game or web page designers Doctors, Accountant paramedics s and nurses Careers Photographer DJs and s and movie- musicians makers Social media to advertise  ICT is important in virtually any job you can think of. 15  You need to be able to source and process data and present information as quickly and as accurately as possible.  You need to be able to choose and use the right ICT tools for the job at hand. Taking CAT was the best decision you The computer 16 The computer 17 Take Process Produce input it output Store input and output  What is a computer? 18 Laptops Smartphones Desktop Tablets computer  Multi-purpose  Electronic devices QUICK REVISION  Portable/mobile (left) Types of computers 19 Servers Desktops Processing power Laptops Notebooks Physical Tablets size Smartphones Portable Types of computers: Portable 20 Computers and ICT devices used for work and for Entertainment Surfing the web Communication Social networking Portability: work anywhere, at any time Types of computers: Portable 21 Laptops/notebooks Portable computers which use miniaturised parts that have a low power consumption, so as to allow for portable computing on battery power. Cases with hinged screens, keyboard and suitable pointing device (touchpad)  Types of computers: Portable 22 Laptops/notebooks: Power settings Specifying that the computer should conserve power by starting to ‘sleep’ or hibernate when it has not been used for a period of time  Types of computers: Portable 23 Laptops/notebooks: Power settings Setting the brightness of the screen Choosing a balance between power consumption and performance  Types of computers: Portable 24 Tablets Portable computer with a touch or pen-sensitive screen Ideal for quick, small scale computing Special operating systems designed for mobile devices Long battery life Wireless (WiFi) and cellular data connectivity (e.g. 3G and 4G/LTE).  Types of computers: Portable 25 Hybrid laptops /tablets Trend to include touch screens in laptops/notebooks Combine the touch screen with a hinge (to swivel the screen 360 degrees) – or to remove the screen completely So allowing the device to be used as a tablet  Types of computers: Portable 26 Smartphones Perfect example of digital convergence – combines the features and technologies of many separate devices. All smartphones have the following:  An operating system (Google Android iOS)  ‘Large’ colour screens  Built-in data modem (3G, HSDPA or 4G/LTE)  GPS for navigation  One or two cameras (front facing and back facing)  WiFi to connect to wireless networks  Speakers and a microphone  Types of computers: Servers and clients 27 Servers are computers that provide services or resources to other computers (clients) that are linked in the network. These services could be providing internet access or storing all the users’ files.  28 Dedicated devices, such as Automatic Teller Machines (ATMs), GPS (Global Positioning System) devices and household appliances like microwave ovens and washing machines, are designed to perform just one specific task. These devices are not computers. Protecting your 29 information The theft of hardware is not just about the cost of replacing the hardware 30 Data stored on the computer or device may not be backed up. Information might be private or sensitive. Information increasingly stored on portable devices.  Hardware theft and protection 31 Record the serial numbers of your hardware. Cable locks to chain equipment to a solid object. Lockable cabinets (with ventilation) for system units (‘boxes’). Motion sensors with an alarm which detect when a computer is moved. Uninterruptible Power Supply 32 Protects computer against power surges Provides power to the computer(s) connected to it as soon as the power goes out Test and improve 33 Written module 34 activity