
356
INDEX
key 259–60, 264–5, 266, 268, 305,
309–10, 313
lengths 264
names 263, 268
normalisation of data 304–5
presence checks 17–18
querying 274–6, 286, 288–91, 293
types 267
File Allocation Table 60
fileless malware 115
files
audio 312, 341, 342–3, 344
copying 60
databases 271–3, 310–15
handling 97–8
video 312, 325, 326–7
filters 330
financial forecasting 238, 239–40
financial planning 138
find duplicates query 289
FIND function 187–8
firewalls 16, 106–7, 117, 118, 119
First Normal Form (1NF) 304–5, 308
flat-file databases 256, 257, 304
flight simulators 247–9
FLoating point Operations Per Second
(FLOPS) 46
flowcharts 85, 98–102, 103
font colour 202, 297
font size 202, 296, 297, 302, 320, 324
font style 202, 296–7, 324
footers 152–3, 155, 156
foreign keys 259, 260, 261, 262, 265,
268–9
Form Wizard 296–301
format checks 19, 21
formatting
charts 224–5, 227
disk formatting 58
spreadsheets 150, 198–206, 235
formulae 148, 161–96
automatic recalculation 235–6, 237
charts 223
data dictionaries 309
databases 292–3, 308
formatting 204
Goal Seek 235
testing 206, 208, 209–10, 251–3
FORTRAN (Formula Translation) 52
forward chaining 143–5, 146
fractions 200
frame size 317–19
frames per second (fps) 331
fraud 9, 12–13, 14–15, 105, 109–12, 116
freeze panes 159, 160–1
functions 164–96
G
gaming 145
General Data Protection Regulation
(GDPR) 105
generic file formats 311–12
genetic analysis 50
geography 122
gesture-based interfaces 65, 66
.gif (graphics interchange format) files
59, 311
glasshouses 37, 70, 74–6, 84
global digital divide 125–6
Goal Seek 235, 240, 253–4
goals 142–3, 144
government websites 133
graphical user interfaces (GUIs) 61, 63,
64, 65–6
graphics interchange format (.gif) 59,
311
graphics processing units (GPUs) 47
graphs 72, 222–31, 236, 237, 240, 315
greenhouses 37, 70, 74–6, 84
gridlines 153, 155
grouping data 294–5
guidance systems 39–40
H
hackers 9, 12, 14–16, 107–8, 114, 116–17
handshakes 12–13, 15
hard disks
encryption 10, 13–14
storage 2, 56, 57–8
hardware
device drivers 55–6
digital divide 120
mainframe computers 42–3, 44–9,
51–2, 233
management information systems
315
online processing 40
supercomputers 43–7, 49–52
hash function 23
hash total 23, 24, 25
headers 152–3, 154, 156
health 129–30
heat maintenance 47
heuristic-based detection 58
HEX2BIN function 191
HEX2DEC function 191
hexadecimal values 23–4
hiding rows/columns 157
hierarchical database management
systems 314
high-pass filters 339
HLOOKUP function 179–80, 182, 189
hosts files 109
HOUR function 194
HTML (Hypertext Markup Language) 312
HTTPS (Hypertext Transfer Protocol
Secure) 12, 13, 14–15, 110
humidity sensors 68, 69, 71, 75
I
IBM z15 43
identity theft 9, 15, 105, 116, 117, 118
IF function 171–2, 173, 178, 206
IFERROR function 173
IFS function 172, 173, 178
IF...THEN 136, 137, 140, 141, 142–5
IF...THEN...ELSE 86, 87–90, 98, 102
IIF function 287
images
compression 59
databases 303
file types 311–12
metadata 106
video editing 319, 320, 323
importing data
audio editing 332
databases 272, 289, 303
spreadsheets 149–50, 220, 237
INDEX function 182–3, 184–5, 189, 206
indexed sequential access 313–14
indices 161, 162
indirect data sources 2, 4–5, 6
industrial espionage 116–17
industrially developed nations 123,
125–6
industry statistics 48
inference engines 136–42, 144, 145
information
compared with data 1–2
digital skills 121
quality of 7–9
retrieval systems 315
see also data
infrared sensors 68, 78
infrastructure 121–2, 124–5
INPUT 86–9, 91–5, 97, 100, 103
input masks 266, 270, 309
inserting cells 156
insurance planning 138–9
INT function 167, 290
integers 167, 258, 267, 290
intellectual property 117
internet 5
digital divide 120–34
as expert system 135
hosts files 109
online shopping 35–7, 108, 125–6,
132–3
see also websites
Internet of Things (IoT) 83, 115
internet protocol (IP) 11
internet service providers (ISPs) 110
interpreters 53–5
interviews 2, 3, 4, 5, 7
investment analysis 137–8
invoices 34, 238, 273, 299–300
IP addresses 106–7, 109
IPsec (internet protocol security) 16
ISERROR function 173
ISNONTEXT function 189
ISNUMBER function 188
ISTEXT function 188
J
job opportunities 130–1
.jpg (JPEG) files 59, 311
Jusqueen supercomputer 50
Juwels supercomputer 50