 
 <prompt> text: ```Wen di board no get any embedded components e dey more correctly called printed wiring board (PWB) or etched wiring board. But, di term printed wiring board don fall out of use. A PCB wey get electronic components inside am dey called printed circuit assembly (PCA), printed circuit board assembly or PCB assembly (PCBA). IPC prefer make dem call assembled boards circuit card assembly (CCA), and for assembled backplanes make dem call am backplane assemblies. Di term PCB dey informally used for both bare and assembled boards.

At first, PCBs dey designed manually by creating a photomask on top clear mylar sheet, usually two or four times di true size. Starting from di schematic diagram di component pin pads dey laid out on top di mylar and then traces dey routed to connect di pads. Rub-on dry transfers of common component footprints dey increase efficiency. Traces dey made with self-adhesive tape. Pre-printed non-reproducing grids on top di mylar dey assist for layout. To fabricate di board, di finished photomask dey photolithographically reproduced onto a photoresist coating on top di blank copper-clad boards.

Answer dis series of questions:

1. How PCBs first dey designed?
2. Wetin dem dey call am if board no get any embedded parts?
3. Wetin be di acronym for am?
4. E get another name?
5. Wetin dem dey call am when electronic parts dey inside?
6. E get other names?
7. Wetin be IPC preferred term?
8. Wetin be di term preferred for backplanes?
9. How PCBs dey manually created?
10. How much bigger pass di real size?
11. Wetin dem dey use make traces?
12. Wetin dey help for di layout?
13. How board dey fabricated?
14. E dey used formally for assembled boards?
15. How component pin pads dey laid out?
16. Wetin dey route am to connect di pads?
17. Wetin term no dey used much again?
18. Wetin di term informally dey used for?
19. E dey opaque?
20. Wetin kind of transfers dey used?``` <response>: ```1. manually
2. printed wiring board
3. PWB
4. etched wiring board
5. printed circuit assembly
6. printed circuit board assembly or PCB assembly (PCBA
7. circuit card assembly
8. backplane assemblies
9. creating a photomask on a clear mylar sheet
10. two or four times
11. component pin pads
12. Pre-printed non-reproducing grids on the mylar
13. finished photomask was photolithographically reproduced onto a photoresist coating on the blank copper-clad boards.
14. No
15. on the mylar
16. traces
17. printed wiring board
18. bare and assembled boards.
19. No
20. Rub-on dry transfers``` 