Computer-Science-A-level-Ocr
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3-3-networks8 主题
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3-2-databases7 主题
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3-1-compression-encryption-and-hashing4 主题
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2-5-object-oriented-languages7 主题
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2-4-types-of-programming-language4 主题
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2-3-software-development5 主题
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2-2-applications-generation6 主题
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2-1-systems-software8 主题
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1-3-input-output-and-storage2 主题
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1-2-types-of-processor3 主题
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1-1-structure-and-function-of-the-processor1 主题
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structuring-your-responses3 主题
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the-exam-papers2 主题
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8-2-algorithms-for-the-main-data-structures4 主题
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8-1-algorithms10 主题
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7-2-computational-methods11 主题
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7-1-programming-techniques14 主题
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capturing-selecting-managing-and-exchanging-data
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entity-relationship-diagrams
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data-normalisation
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relational-databases
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hashing
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symmetric-vs-asymmetric-encryption
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run-length-encoding-and-dictionary-coding
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lossy-and-lossless-compression
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polymorphism-oop
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encapsulation-oop
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inheritance-oop
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attributes-oop
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methods-oop
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objects-oop
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capturing-selecting-managing-and-exchanging-data
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6-5-thinking-concurrently2 主题
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6-4-thinking-logically2 主题
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6-3-thinking-procedurally3 主题
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6-2-thinking-ahead1 主题
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6-1-thinking-abstractly3 主题
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5-2-moral-and-ethical-issues9 主题
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5-1-computing-related-legislation4 主题
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4-3-boolean-algebra5 主题
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4-2-data-structures10 主题
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4-1-data-types9 主题
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3-4-web-technologies16 主题
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environmental-effects
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automated-decision-making
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computers-in-the-workforce
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layout-colour-paradigms-and-character-sets
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piracy-and-offensive-communications
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analysing-personal-information
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monitoring-behaviour
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censorship-and-the-internet
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artificial-intelligence
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the-regulation-of-investigatory-powers-act-2000
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the-copyright-design-and-patents-act-1988
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the-computer-misuse-act-1990
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the-data-protection-act-1998
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adder-circuits
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flip-flop-circuits
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simplifying-boolean-algebra
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environmental-effects
device-drivers
Device Drivers
What is a device driver?
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A device driver is a piece of software that enables communication between an operating system and specific hardware devices such as:
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Printers
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Graphics cards
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Network cards
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Device drivers allow the OS to control and interact with those devices
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Because many external devices have embedded system software, a driver bridges the gap between a major operating system and a tiny hardware OS
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Device drivers make it possible to perform specific operations on the hardware e.g. a printer driver enables the OS to send print commands and manage print jobs
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Most hardware manufacturers write their own device driver software, meaning a single operating system may have several printer drivers installed
Worked Example
Adding a DVD drive to a computer often requires the installation of a piece of software called a device driver.
State the purpose of a device driver.
[1]
How to answer this question:
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Pick one example of a hardware device and describe what happens between it and the operating system
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Explain that this is made possible through device driver software
Answer:
Example answer that gets full marks:
The purpose of a device driver is to enable the operating system to interact with and control a hardware device. For example, a printer would have an associated device driver so the OS could send or receive data from a printer system.
Acceptable answers you could have given instead:
The purpose of a device driver is to enable communication between an operating system and external hardware.
Responses