Marianville · Grade 11 ICT
Sources · Attribution

Bibliography & Image Credits

Every image in this textbook is used under an open licence. Each entry below names the author, the licence, and links back to the original file on Wikimedia Commons. If you reuse any figure, keep the same attribution.

Term 1 · Computer Architecture

  1. Rows of server racks in a data centre operated by the Wikimedia Foundation.
    Ch 01 · Week 1
    Course Orientation & Fundamentals of Computer Administration

    A modern server room. Every rack here needs a system administrator to keep it running, cool and secure.

    Credit
    Victor Grigas
    Licence
    CC BY-SA 3.0
    Source
    Wikimedia Commons file page
  2. Screenshot of the htop system monitor showing CPU, memory and running processes.
    Ch 03 · Week 3
    Basic Management of Computer Systems

    htop is the Linux equivalent of Windows Task Manager — a routine tool for monitoring CPU, memory and processes on a live system.

    Credit
    Hisham Muhammad (htop project)
    Licence
    GPL-2.0 (screenshot: CC BY-SA 3.0)
    Source
    Wikimedia Commons file page
  3. Close-up of a hard disk platter with visible scratch marks caused by a head crash.
    Ch 04 · Week 4
    Maintenance, Diagnosis & Troubleshooting

    A hard-drive head crash — the read/write head has scored the platter. Exactly the kind of fault the 5-step troubleshooting cycle is designed to diagnose.

    Credit
    Alpha six / Wikimedia Commons
    Licence
    CC BY-SA 3.0
    Source
    Wikimedia Commons file page
  4. Three through-hole resistors showing their coloured tolerance bands.
    Ch 05 · Week 5
    Basic Electronic Components

    Through-hole resistors. The coloured bands encode the resistance value — one of the first component-reading skills.

    Credit
    Nunikasi / Wikimedia Commons
    Licence
    CC BY-SA 3.0
    Source
    Wikimedia Commons file page
  5. A collection of transistors of different shapes and packages.
    Ch 05 · Week 5
    Basic Electronic Components

    Transistors in different packages. All do the same core job — switch or amplify a signal — and billions of them sit inside every CPU.

    Credit
    Ulfbastel / Wikimedia Commons
    Licence
    CC BY-SA 3.0
    Source
    Wikimedia Commons file page
  6. A hand pressing a DDR memory module into a motherboard's RAM slot.
    Ch 06 · Week 6
    Installation & Configuration of Computer Electronics

    Installing a RAM stick. Line up the notch, press evenly on both ends until the side clips click — the technique practised in the lab.

    Credit
    Andrew Butko / Wikimedia Commons
    Licence
    CC BY-SA 3.0
    Source
    Wikimedia Commons file page
  7. Close-up of a Signetics NE555 timer IC in an 8-pin DIP package.
    Ch 07 · Week 7
    Data Books & Component Specifications

    The NE555 timer IC. Its datasheet lists pinout, voltage range and timing formulas — exactly the specs you learn to read this week.

    Credit
    Stefan506 / Wikimedia Commons
    Licence
    CC BY-SA 3.0
    Source
    Wikimedia Commons file page
  8. Diagram of an ideal square wave alternating between high and low voltage.
    Ch 08 · Week 8
    Timing Technology — Clocks, Crystals & Signals

    An ideal square wave — the shape of a computer clock signal. Each rising edge tells the CPU to move to its next state.

    Credit
    Omegatron / Wikimedia Commons
    Licence
    Public domain
    Source
    Wikimedia Commons file page
  9. Labelled diagram of a desktop motherboard showing CPU socket, RAM slots, chipset and expansion slots.
    Ch 09 · Week 9
    Revision — Computer Architecture (Topics 1 & 2)

    Labelled motherboard diagram. Use it to self-test: can you name every socket, slot and header without looking?

    Credit
    Moxfyre / Wikimedia Commons
    Licence
    CC BY-SA 3.0
    Source
    Wikimedia Commons file page
  10. Exploded diagram of a desktop personal computer with case, motherboard, PSU, drives and expansion cards.
    Ch 10 · Week 10
    End-of-Term 1 Assessment & Project Showcase

    Exploded view of a desktop PC. By the end of Term 1 you should be able to name every part and explain what it does.

    Credit
    Gustavb / Wikimedia Commons
    Licence
    CC BY-SA 3.0
    Source
    Wikimedia Commons file page

A note on licensing

Images are hotlinked from Wikimedia Commons via the stable Special:FilePath URL. Wikimedia explicitly permits reuse of Commons media on external sites, provided each image carries the author's name and its licence. Public-domain images have no restrictions; CC BY and CC BY-SA images require the credit shown above. Terms 2, 3 and 4 will be added here once their figures are researched.

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