Capacitor code and units
A ceramic says 104, the datasheet said 0.1 µF and the schematic says 100 nF. All three are the same capacitor, so this prints every unit at once rather than converting between two of them.
100 nF
104 → 10 × 10^4 pF = 100 nF
The four everybody has in a drawer
pF
100,000
nF
100
µF
0.1
mF
0
100 nF is 100000 pF, 100 nF, 0.1 µF — and 104 on the part. A ceramic this size is unpolarised, and the number printed on it is before the voltage coefficient: a Y5V part at half its rated volts can be down by most of its value.