Biometric-Based Attendance Tracking System for Education Sectors: A Literature Survey on Hardware Requirements

Table 2

A comparison of the performance of various microcontroller platforms.

Performances/characteristics	80C51	PIC	ATmega	ARM	DSP
Bus width	8-bit	8/16/32-bit	8/32-bit	32/64-bit	Uncommon bus width
Memory architecture	Harvard/tunable to Von Neumann	Harvard	Harvard	Harvard/Harvard first level memory system	Modified Harvard
Instruction set architecture	CISC	RISC	RISC	RISC	RISC
Speed	12 clocks per instruction cycle	4 clocks per instruction cycle	1 clock per instruction cycle	1 clock per instruction cycle	1 clock per instruction cycle
Power consumption	High	Low	Low	Low	Low
Bare chip cost (based on the microcontroller chip listed in Table 1)	$4-$9	$4-$5	$1-$13	$3-$8	$14-$29
Biometric modalities for attendance systems	Iris [76]; fingerprint [43]	Fingerprint [54, 79]	Fingerprint [18, 35, 38, 39, 82]; face [51, 81]	Fingerprint [42, 44, 48]; face [45, 46, 62]	Fingerprint [75, 88]