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Exam questions by topic

Edexcel curriculum (2015)


Algorithms

Application sof'wre​

Ascii

Binary

Cache

Client-Server

Cloud

Compression

Computational think

CPU

Cyber security

Database

Fetch-d-e cycle

Embedded system

Encryption

Environment

Ethics

File size

Flow chart

Hexadecimal

High Level language

ISP/Internet

Law & Legislation

Logic

Magnetic HDD

Networking

Open source

Operating system

Optical storage

Peer to peer

Pictures (data rep)

Protocols

Run length encoding

RAM

ROM

Simulation software

Solid state HD

Sound

Stored program

Utility Sof'wre

Open source

Picture
Answer
​Indicative content:

Monetary cost:
? Open source software is often developed by a non-profit community and is free to use.
? Proprietary software is usually purchased from a software company who licenses its use.

Availability of source code:
? Open source software can be distributed and modified without permission. Anyone can fix bugs and create updates, without any need to wait for a new release.

Availability of support:
? Open source software usually has help available from the community of experts who are interested and contribute to forums.
? Proprietary development software will not have issues with ongoing parallel developments as updates / changes are controlled, avoiding confusion between versions.
? Proprietary development software will be supported by the originators.

Stability, reliability, suitability
? Open source is based on open standards that are accessible to everyone - avoids compatibility problems.
? Open source code is continually analysed by a large community of experts and therefore is stable / reliable.
? Proprietary development software will be less vulnerable to malicious users who could exploit the level of access provided to open source code.

title2

Answer
​

title3

Answer

title4

Answer

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  • Exam boards
    • OCR past papers >
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      • Binary
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      • Fetch decode execute cycle
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      • Flow chart
      • Hexadecimal
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      • Magnetic HDD
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      • Operating system
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      • Images (Data representation)
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      • ROM
      • Run length encoding
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      • Stored program concept
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