section 2 systems technologies
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Section 2 Systems technologies. Module 2.2 Basic concepts of hardware. The basic model of a computer . PROCESSING. INPUT. OUTPUT. STORAGE. COMMUNICATION. Categories of hardware inside case. - PowerPoint PPT PresentationTRANSCRIPT
PowerPoint Presentation
RAM: Random Access MemoryWhat is the role of RAM?Whys is the data transfer between RAM and CPU is fast?What is the effect when you increase RAM?How do you upgrade RAM?What does RAM is volatile mean?What limits the amount of RAM you can use?
Watch a video how to install memory e.g. http://www.butterscotch.com/tutorial/Installing-Your-PCs-Memory
Hard diskPhysical composition of Hard Disk Drives.Storage is not electronic on HDD. Name the type of storageWhy is the HDD slower than the RAM?Capacity and cost of storage on HDD.What will happen when you drop a hard drive while it is working?Two sides of the same hard drive.
View video on installing the hard drive e.g. http://www.butterscotch.com/tutorial/Installing-The-Hard-Drive
Categories of hardware inside caseView all components you need to build you own PC at e.g. http://www.butterscotch.com/tutorial/Getting-Started-Building-Your-PC
Game controllersDiscuss specialised game controllers for the Xbox or PlayStations.Discuss the Wii motion sensitive controllersDiscuss Microsoft Kinect for the Xbox users
Buttons on game controller provide options like shooting and motion sensitive controllers or cameras responds to your movement to play games like tennis
Touch screenName devices that use touchscreensDiscuss the gestures to control the computer on touch screens
Capacitive touchscreens respond to fingers (or things that conduct electricity) MicrophoneDiscusss different type of microphones that are used by computers, smartphones and media tablets
Input: the sound that can be recorded or the computer can respond if it uses voice recognition.
Optical storage: CD / DVD / Blu-rayHow is data stored on optical drives?Which is slower, hard disk drives or CD drives? What is the storage capacity of CDs, DVDs and Blu-ray discs?How do you distinguish between CDs, DVDs and Blu-ray discs just by looking at it?
See how to install the CD/DVD drive at e.g. http://www.butterscotch.com/tutorial/Installing-The-Optical-Drive
Connect to Television
Other connections
Activity 1 Do question 1 to 10 of activity 1
Categories of hardware peripherals for inputOther input devicesOther input devices and where they are used, likebuttons, scroll-wheels,toggle switches,rocker switches etc.
Types of data inputActivity 2: Input
Answer question 1- 18 of Activity 2Categories of hardware peripherals for outputMain types of printers
Activity 3Answer question 1- 10 activity 3StorageDisadvantages of optical disc drives (CD / DVD / Blu-ray)comparatively slowlimited capacityexpensive per GB compared to magnetic storage or even Solid State Disks (SSDs). easily damaged by being scratched or exposed to heat. comparatively largeCommunicationModem (MOdulator DEModulator) was used to convert a computers digital data into analogue audio signals, and vice versa.Today data is transmitted digitally no conversion to analogue3G modems ADSL modems Routers
Activity 4Answer Question 1 to 9Smartphones versus computers
Synchronising your phone and your computer
Same data on more than one device - e.g. contacts in your e-mail address book and on your phone.If you edit the data on one device, the data on the other devices is out of date unless you synchronise the data between devices (i.e. make sure that each device has the latest copy of the data). Software neededDropBox - Cloud Syncing.
Activity 5 Phone and computerAnswer question 1 to 7 of Activity 5
DesktopSmartphone
CommunicationADSL modem or 3G modem built-in wireless connectivity such as Wi-Fi, Bluetooth and 3G
Inputkeyboard and mouse or a microphone small keyboard, touch screen and built-in microphone and camera,
Output19 25 screen, speakers, headphones, can connect directly to printer.Built in (3 - 5) screen, built-in speakers, headphones.
ProcessorIntel / AMD multi-core processors.Uses ARM, Qualcomm, Apple CPUs
RAM1 GB 12+ GB
256 MB 2 GB
StorageTypically 250 GB +
8 GB 64 GB