Hardware, software and file management: HSC Industrial Technology Multimedia Technologies

What this dot point is asking

Multimedia production depends on hardware to capture, process, store and output media, and software to create and assemble it. NESA expects you to describe these tools, the file formats they use, and how digital assets are managed and backed up. This practical infrastructure knowledge keeps your Major Project running smoothly and safely, and it is examined in the written paper.

Capture hardware

Media must first be captured into the computer:

• Cameras capture still images and video.
• Microphones and audio interfaces capture sound.
• Scanners digitise printed images and documents.
• Graphics tablets let artists draw directly into the computer.

The quality of captured media sets a ceiling on the finished product, so capture hardware is chosen to suit the quality the brief needs.

Processing hardware

Multimedia is demanding on the computer, especially video and 3D work. A capable system needs a fast processor, ample memory (RAM) to handle large media, a strong graphics processor for video and 3D, and fast storage so editing is responsive. Underpowered hardware slows production and can make video and animation editing impractical, which is why hardware specification matters in planning a project.

Storage and output hardware

• Storage uses internal drives plus external drives, network storage and removable media for the large files multimedia produces, with extra capacity for backups.
• Output uses screens and monitors for visual work, speakers and headphones for audio, projectors for presentation, and printers where hard copy is needed.

Calibrated, good-quality output devices matter because you can only judge and present work as well as your screen and speakers let you.

Software types

Different software handles different media and tasks:

• Imaging software for creating and editing raster and vector graphics.
• Audio software for recording, editing and mixing sound.
• Video editing software for assembling and editing footage.
• Animation software for 2D and 3D animation.
• Authoring and web tools for assembling everything into the interactive product.

A multimedia project typically moves media through several of these in turn, so understanding what each does helps you plan the workflow.

File formats and compression

Each media type has formats suited to different needs, balancing quality against file size: vector and raster image formats, lossy and lossless audio and video formats, and exchange formats for sharing. Compression reduces size for storage and delivery at some cost to quality. Choosing the right format and compression for each asset, working in high quality and delivering in compressed form, keeps both quality and performance acceptable.

Asset and file management

A multimedia project generates many files, so managing them is a real skill:

• Organisation: logical folders and clear, consistent file names so assets can be found.
• Version control: keeping track of versions so work is not overwritten or lost.
• Backups: regular backups to separate storage so a drive failure or mistake does not destroy the project.

Many projects are lost to a single failed drive or an overwritten file, so disciplined management and backup are as important as the creative work. In your folio, show that you organised and backed up your assets, because that professionalism is part of sound project management.