Quantity   Component name
4 × Quad elex prototyping board Printed circuit board / Logic prototyping board
2 × 74LS181 Logic ICs / Arithmetic and Parity Functions
4 × 74HCT374 Logic ICs / Registers
1 × 74HCT273 Logic ICs / Registers
3 × 74HCT241 Logic ICs / Buffers, Drivers, Transceivers
2 × 74HCT04 Logic ICs / Gates
2 × 74HCT08 Logic ICs / Gates
1 × 74HCT32 Logic ICs / Gates
1 × 74HC182 Logic ICs / Arithmetic and Parity Functions