Final answer:
CF and XD cards are categorized as Old Technology while SD cards are considered New Technology. Card relevance has evolved over time due to factors like size, speed, and capacity, reflecting advances and shifts in technology.
Step-by-step explanation:
To categorize each memory card based on technology age:
- CF cards (Compact Flash) - Old Technology: CF cards were one of the earlier types of memory cards used in digital cameras but have generally been superseded by smaller, faster, and higher-capacity cards.
- SD cards (Secure Digital) - New Technology: SD cards are widely used today and are considered the industry standard for portable storage in digital cameras, smartphones, and other devices.
- XD cards (Extended Digital) - Old Technology: XD cards were introduced by Olympus and Fujifilm for their digital cameras but are not highly popular and have been largely replaced by SD cards.
Memory cards not only differ in form factor but also in storage capacity and speed class ratings. For instance, a class 10 SD card has a minimum data transfer rate of 10 megabytes per second (MBPS), while a class 2 has 2 MBPS. Speed class becomes critical when shooting high-quality photos or high definition video. Updating technology and preferences in memory cards reflect the evolutionary model of technological changes, which include periods of innovation and stabilization as described by Anderson and Tushman.