Unit 3 Inside the system.

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Presentation transcript:

Unit 3 Inside the system

Three tasks What are on a motherboard? Get your hands dirty! Label the components Group 1, 5 Group 2, 9 Group 3, 10 Group 4, 11 Group 6, 12 Group 7 Group 8 Install a DIMM memory module (without breaking it!) Connect optical disc drive/floppy disk drive to the motherboard (don’t worry about power supply at the moment) FFC (flexible flat cable)

1. CPU/CPU socket 2. Memory slots 3. Northbridge 4. Southbridge 5. Power connector 6. FDD connector (short for Floppy Disk Drive) 7. IDE connector (short for Integrated Drive Electronics) 8. PCI or PCI Express slots 9. Rear I/O panel 10. Heatsink

Open the computer case Power supply unit Heatsink Cooling fan SDRAM, DRAM, DDR, DDR2 CPU BIOS DIMM memory slot Power connector Graphics processing unit (GPU) Northbridge Southbridge PCI slot PCI express slot DIMM: Dual Inline Memory Module DRAM: dynamic random access memory DDR: double data rate RAM DDR2, DDR2 SIMM: single in-line memory module SDRAM: Synchronous dynamic random access memory PIC (peripheral component interconnect)

DMI (direct media interface)

System-on-a-chip (SoC) www.intel.com (2013)

rewindblog.com (2007)

www.hardwarecanucks.com, July 2009

Learning objectives To understand the structure and functions of the CPU To distinguish between RAM and ROM To understand how memory is measured (bits, bytes, KB, MB, GB, TB, PB) To use relative pronouns correctly

Central processing unit

Registers Program counter (PC, instruction pointer or instruction address register) a processor register that indicates where the computer is in its instruction sequence. Depending on the details of the particular computer, the PC holds either the address of the instruction being executed, or the address of the next instruction to be executed. Instruction register (IR) Holding the instruction currently being executed

How memory is measured ASCII http://www.ascii-code.com/ Uses 7-digit binary numbers (128 possible characters or symbols) to represent letters of alphabets, numbers, punctuation marks and symbols, special functions, such as the carriage return Can ASCII be used to encode Chinese characters? Petabyte (PB) = “two power fifty” or “two to the power of fifty” =1 followed by 15 zeros

Take-home assignment 2 (group, Unit 4) Upload to ftp:\\163.25.117.117\upload\ckuo\ScientificEnglish\Assignment2 Deadline Friday, 17th April 2015, 5:00pm Late submission will not be accepted! PowerPoint slides, max. 5 Go to http://www.pcworld.co.uk/gbuk/index.html Find ONE laptop, desktop, or tablet that you want to buy Copy link, photo, key features Why choose this product in particular?