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ROM: Read Only Memory
Used for storing fixed programs. Holds the SCOS.
Typically varies from 2KB to around 16 KB.
Once written, cannot be changed.
Occupies the least area.
PROM: Programmable Read Only Memory
Used for loading card serial number.
Very small, typically just 32 bytes.
Smart Card by itself is useless. Requires a reader.
Reader is often called the Read-Write Unit as it can read as well as write to the card.
Readers of two types:
Insertion Readers: Cheaper, but manual.
[Card Swipe Machine]
Motorized Readers: Automatic card capture and release. Costly. [Bank ATM Machines]
Cost of a reader varies from $10 to $100.
Readers often come with keypad for entry of PIN.
Chip is tamper_resistent.
Information stored on the card can be PIN protected and/or read write protected.
Capable of performing data encryption
Capable of processing info.
Post_issuance update of information and application.