Review Article
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] |
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