Unit 4: Digital impacts
Week	Theory	Practical	Additional learning experiences (or homework)
	recap all theory and skills from: Unit 1: Creating With Code Unit 2: Application and Data Solutions Unit 3: Digital Innovation data interchange formats: CSV XML | XML parts JSON | JSON parts more CSV examples more JSON examples	API principles: simple API sample 1 API sample 2 RESTful API sample 3	hashing passwords request client server
	exam materials table - useful for IA3 - interchange formats, API, REST, encryption, plus information below (URI / encoding)
	External assessment Digital methods for exchanging data Complex digital data exchange problems and solution requirements Prototype digital data exchanges exam study materials - click back

Binary
base2=[0,1]
23	22	21	20
8	4	2	1
1	0	1	1
8	0	2	1
11

Binary → 7-bit ASCII
base2=[0,1]
26	25	24	23	22	21	20
64	32	16	8	4	2	1
1	0	0	0	0	0	1
1	0	0	0	0	0	1
65 → A

Decimal
base10=[0,1,2,3,4,5,6,7,8,9]
103	102	101	100
1000	100	10	1
4	5	0	9
4000	500	0	9
4509

Hexadecimal (for SHA-256 hash)
base16=[0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f]
[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
163	162	161	160
4096	256	16	1
		b (i.e. 11)	8
		11*16=176	8
184

confirmation requirements for internal assessment 3:

item	file	type	max size
Summative internal assessment 3 (IA3): Project — folio (25%)	ISMG	PDF	5 MB
	written response: document 8-10 A3 pages code 2-4 A4 pages	PDF	5 MB
	video of functionality: 1-2 minutes	MP4 MOV or AVI	500 MB
	video script	PDF	5 MB