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

title1

Answer
Correct identification of the labelled items:
A. Analogue signal/sound wave (1)
B. Sample interval (1)
C. Amplitude (1)

Sampling

Answer
An explanation that makes reference to the following points:
• (Higher sampling frequencies) generate more sampling data (1)
• which increases memory/storage requirements (1)
• and gives a more accurate digital representation (of the original signal) (1)?