02 - IT Architecture Flashcards
1
Q
centralized computer (eg. mainframe)
A
From 1945 (ENIAC) to present
centralized processing
in/output w/ dummy terminals
2
Q
client/server
A
From 1983 to present
Processing is split between the server computer and the client computer
3
Q
N-tiered architecture
A
Work is balanced over several different levels:
- Presentation layer
- Application layer
- Business layer
- Data access layer
4
Q
web app vs native app
A
web apps: (eg. HTML)
- run on browser
- need internet access
- multiplatform
- responsive = adapts to size of screen
native apps:
- installed on device
- may or not need internet
- richer user interface
- specifically designed for a given platform (IOS, android…)
hybrid apps = part native, part web app
5
Q
3 types of architectural models
A
centralized computer
client/server
N-tiered architecture
