Or imagine that you are using your own computer and that you are going to write to a Norwegian acquaintance named Bjørn.
How do you do?
Yes, in some programs you can choose to insert characters and otherwise of course you can change the language on the keyboard by choosing Settings, Time and language. However, this can feel unnecessarily cumbersome if you just want to insert a single letter. A simpler solution is to use something called ascii codes.
This code can be typed on any keyboard via the numeric part, i.e. the part with numbers on the right. Just press Num cap to activate the numeric keypad, otherwise the keys are used as arrows. Then hold down the Alt key and enter a three- or four-digit code. When you release Alt, you see the correct letter.
For example, do you write Everything+0197 then you get the letter Å while Everything+0216 gives you a Norwegian/Danish Ø.
For more characters – check our table below.

Numbers
0 = Alt+048
1 = Alt+049
2 = Alt+050
3 = Alt+051
4 = Alt+052
5 = Alt+053
6 = Alt+054
7 = Alt+055
8 = Alt+056
9 = Alt+057
Capital letters (Swedish/Finnish alphabet)
A = Alt+065
B = Alt+066
C = Alt+067
D = Alt+068
E = Alt+069
F = Alt+070
G = Alt+071
H = Alt+072
I = Alt+073
J = Alt+074
K = Alt+075
L = Alt+076
M = Alt+077
N = Alt+078
O = Alt+079
P = Alt+080
Q = Alt+081
R = Alt+082
S = Alt+083
T = Alt+084
U = Alt+085
V = Alt+086
W = Alt+087
X = Alt+088
Y = Alt+089
Z = Alt+090
Å = Alt+0197
Ä = Alt+0196
Ö = Alt+0214
Small letters (Swedish-Finnish alphabet)
a = Alt+097
b = Alt+098
c = Alt+099
d = Alt+0100
e = Alt+0101
f = Alt+0102
g = Alt+0103
h = Alt+0104
i = Alt+0105
j = Alt+0106
k = Alt+0107
l = Alt+0108
m = Alt+0109
n = Alt+0110
o = Alt+0111
p = Alt+0112
q = Alt+0113
r = Alt+0114
s = Alt+0115
t = Alt+0116
u = Alt+0117
v = Alt+0118
w = Alt+0119
x = Alt+0120
y = Alt+0121
z = Alt+0122
å = Alt+0229
ä = Alt+0228
island = Alt+0246
Norwegian/Danish letters
Æ = Alt+0198
Ø = Alt+0216
æ = Alt+0230
ø = Alt+0248
Letters in other languages
Š = Alt+0138
Œ = Alt+0140
Ž = Alt+0142
š = Alt+0154
œ = Alt+0156
z = Alt+0158
Ÿ = Alt+0159
þ = Alt+0254
À = Alt+0192
Á = Alt+0193
 = Alt+0194
à = Alt+0195
Ç = Alt+0199
È = Alt+0200
É = Alt+0201
Ê = Alt+0202
Ë = Alt+0203
Ì = Alt+0204
Í = Alt+0205
Î = Alt+0206
Ï = Alt+0207
Ð = Alt+0208
Ñ = Alt+0209
Ò = Alt+0210
Ó = Alt+0211
Ô = Alt+0212
Õ = Alt+0213
× = Alt+0215
Ù = Alt+0217
Ú = Alt+0218
Û = Alt+0219
Ü = Alt+0220
Ý = Alt+0221
Þ = Alt+0222
ß = Alt+0223
à = Alt+0224
á = Alt+0225
â = Alt+0226
ã = Alt+0227
ç = Alt+0231
è = Alt+0232
é = Alt+0233
ê = Alt+0234
ë = Alt+0235
ì = Alt+0236
í = Alt+0237
î = Alt+0238
ï = Alt+0239
ð = Alt+0240
ñ = Alt+0241
ò = Alt+0242
ó = Alt+0243
ô = Alt+0244
õ = Alt+0245
ù = Alt+0249
ú = Alt+0250
û = Alt+0251
ü = Alt+0252
ý = Alt+0253
ÿ = Alt+0255
Currencies
€ = Alt+0128
£ = Alt+0163
$ = Alt+036
Punctuation and more
! = Alt+033
” = Alt+034
# = Alt+035
% = Alt+037
& = Alt+038
‘ = Alt+039
( = Alt+040
) = Alt+041
* = Alt+042
+ = Alt+043
= Alt+044
– = Alt+045
. = Alt+046
/ = Alt+047
: = Alt+058
; = Alt+059
< = Alt+060
= = Alt+061
> = Alt+062
? = Alt+063
@ = Alt+064
[ = Alt+091
= Alt+092
] = Alt+093
^ = Alt+094
_ = Alt+095
` = Alt+096
{ = Alt+0123
| = Alt+0124
} = Alt+0125
~ = Alt+0126
‚ = Alt+0130
ƒ = Alt+0131
„ = Alt+0132
… = Alt+0133
† = Alt+0134
‡ = Alt+0135
ˆ = Alt+0136
‰ = Alt+0137
‹ = Alt+0139
‘ = Alt+0145
‘ = Alt+0146
” = Alt+0147
” = Alt+0148
• = Alt+0149
– = Alt+0150
— = Alt+0151
˜ = Alt+0152
™ = Alt+0153
› = Alt+0155
¡ = Alt+0161
¢ = Alt+0162
¤ = Alt+0164
¥ = Alt+0165
¦ = Alt+0166
§ = Alt+0167
¨ = Alt+0168
© = Alt+0169
ª = Alt+0170
« = Alt+0171
¬ = Alt+0172
® = Alt+0174
¯ = Alt+0175
° = Alt+0176
± = Alt+0177
² = Alt+0178
³ = Alt+0179
´ = Alt+0180
µ = Alt+0181
¶ = Alt+0182
· = Alt+0183
¸ = Alt+0184
¹ = Alt+0185
º = Alt+0186
» = Alt+0187
¼ = Alt+0188
½ = Alt+0189
¾ = Alt+0190
¿ = Alt+0191
÷ = Alt+0247