Samsung or Apple?

1. Samsung or Apple? I-phone 7 Samsung Galaxy S7 Edge

2. Task A • You have 5 minutes to do the following: • determine which of the devices you prefer. • Make a list of the things that led you to prefer the particular device over the other.

3. Hardware Specifications

4. Objective(s) • At the end of this lesson, students should be able to: Interpret the hardware specifications of a computer system.

5. Hardware and Hardware Specifications • The term hardware refers to all physical parts or components of a computer system example, CPU, Mother Board. • Hardware specifications are technical descriptions of a computer’s components and capabilities.

7. 1. Display Properties 2. Operating System

8. No of CPUs – “Quad core” CPU type: “Kryo” CPU speed: “1.6 GHz” Expansion slot Primary Storage Secondary Storage Ports

10. Hardware components and basic classifications • Central Processing Unit (CPU): • CPU type • CPU speed • Word Size • Main Memory (RAM; ROM): • Memory type • Memory Speed • Memory Size (capacity) • Number of Memory Modules • Secondary Storage (Hard drives; Memory cards): • Memory type • Memory Size (capacity) • Interface type • Mother Board: • Expansion slots • Ports • Monitor (Display Graphics): • Monitor Size • Resolution • Graphics • Operating System* * - This is not a hardware component but is necessary for the overall operation of the computer system

11. CPU CPU type: This refers to the brand of processor along with processor model. Examples: Kryo 385 (from S7 Edge earlier) Intel Core i7-2600; Intel 80486; AMD Phenom CPU Speed: This refers to the rate or speed at which the internal parts of a CPU is run and it is normally stated in Giga-Hertz (GHz) or Mega-Hertz(MHz). Example 2.3 GHz Note: 1000Hz = 1 GHz and the greater the number, the faster the CPU is. Word size: This is the amount of bits the CPU can process at a time. Common word sizes are 32-bit and 64-bit. Note: A 64-bit processor is faster than a 32-bit processor

12. Main Memory Memory type: This is the kind of memory present. As it regards to Random Access Memory (RAM), some examples include: DDR1, DDR2, DDR3 DDR – Double Data Rate Memory Speed: This refers to the speed or rate at which a particular memory type operates. Example: 1600 MHz, 1333 MHz. Note: The greater RAM speed the better but bare in mind that when selecting a RAM speed, the speed of the CPU also has to be taken into consideration. Memory Size: This is the amount of information a particular memory type can hold. As it regards to RAM, some examples are: 512 MB, 2 GB, 4GB, 8GB Number of Modules: This the amount of Physical RAM sticks (modules) that a particular devices possess. Example: 2 DIMM DIMM – Dual in line Memory Module

13. Secondary Storage Memory Type: As it regards to secondary storage, this is any other storage media present which is not RAM or ROM. This includes, HDD (Hard Disk Drives, SSD (Solid state Drives), Memory Cards etc. Memory Size: These sizes are much larger than RAM sizes. Examples 500 GB, 1 TB Note: 1024 GB = 1 TB Interface Type: This refers to how the secondary storage communicates with the CPU. Examples include: IDE (Integrated Drive Electronics), SATA(Serial AT Attachment), SCSI (Small Computer System Interface)

14. Mother Board Expansion Slots: These are slots available on a computer’s motherboard that allow the connection of additional modules that can enhance or add functionality to the computer’s performance. Examples: PCI (Peripheral Components Interconnect); AGP (Accelerated Graphics Port); PCIe (Peripheral Components Interconnect express) Ports: These are openings on computers that allow the connections to the outside world. Example: USB 2.0; FireWire, VGA, HDMI FireWire is used to transfer data from digital camcorders

15. Expansion Ports • To connect a peripheral device to an expansion card, you plug a cable from the device into the expansion port • Expansionport - any connector that passes data in and out of a computer or peripheral device

16. Power plug socket Keyboard port Mouse port USB ports DB-9 serial port Parallel port (printer) Speaker and microphone jacks Monitor port Modem port Network port

17. HDMI • HDMI (High-Definition Multimedia Interface) • HDMI is a digital replacement for existing analog video standards. HDMI-compliant device include; computer monitor, video projector, and digital television. • can be used for any uncompressed video format, including standard, enhanced, high definition, and 3D video signals; with up to 8 channels of compressed or uncompressed digital audio. • HDMI can use HDCP (High-bandwidth Digital Content Protection) to encrypt the signal if required by the source device. CSS, CPRM and AACS require the use of HDCP on HDMI when playing back encrypted DVD Video, DVD Audio, HD DVD and Blu-ray Disc

18. HDMI Connectors • There are 5 types of HDMI Connectors. • Type A, B, C, D, E • Type A Standard HDMI Connector • Type B has a 2 TMDS links. (Dual Link HDMI) for Supper High Resolutions >4K • Type C is a smaller Version of Type A • Type D is a Micro Version of Type A • Type E is for Automotive applications Type E Automotive

19. Ports • Socket for connecting external devices • Four common ports • Serial • Parallel • USB • FireWire

20. Cables • Connect Input/Output devices • Mouse • Keyboard • Printer • Monitor • Newer cables • AGP • graphics monitor • USB • joy stick; scanner • HPSB • video camera

22. Monitor Monitor Size – This is the physical dimensions of the display screen for a particular device. Example 5.5” refers to 5.5 inches Resolution: This is the number of pixels within a monitor. It is commonly stated as follows: # pixels in horizontal direction x # pixels in vertical direction (1268 x 720) Note: A greater resolution provides a better quality image

23. Operating System This is a system software that is the interface between computer hardware and software. It manages the computer’s resources. Examples: Android 6.0 (Marshmallow); iOS; Microsoft Windows XP; Windows NT; Ubuntu; Linux

24. TASK B • Identify the following from the specifications given: • RAM size • Type of device • CPU type • RAM type • CPU speed • Secondary storage type • Operating system • Secondary storage capacity • RAM speed • Port • MacBook Pro (Silver, Space gray) • 13.3-inch (diagonal) LED-backlit display with IPS technology (2560x1600) • 2.3 GHz dual-core intel Core i5, Turbo Boost up to 3.6 GHz with 64 MB of eDRAM • 128GB SSD • 8GB of 2133MHZ LPDDR3 onboard memory • Intel Iris Plus Graphics 640 • USB 3.1 Gen 2 (up to 10 Gbps) • macOS High Sierra

25. Troubleshooting Troubleshooting is the process of identifying and fixing problems. Computer troubleshooting may involve hardware or software and can sometimes involve both at the same time. The basic process of troubleshooting is to check the most general possible problems first, and then gradually check for more specific problems. Please click on the link below and make notes on the topic: https://canvas.instructure.com/courses/955530/assignments/3758445

26. Task C • Form 4 groups. • Your group is the IT/Computer Science Department for one of the following companies: • Acer • Flow • BlackPoint (Smart Television Division) • Apple Tablet Division • You have 10 minutes to research the hardware specifications of one device that is sold or handled by your company. • Identify a sales representative from your group who will try to convince me to buy this product based on the hardware specifications.

27. Assignment • Read pages 27-28 of their textbook and complete the exercise which follows.