Answer:
A computer is defined as an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.
Four features of a computer would be CPU, GPU, Memory, and Motherboard.
Answer:
The answer is A. True.
Explanation:
Information systems security,refers to all the methods involved with assuring information integrity as well as keeping it confidential, and available.
It can also be defined as -
The detection and provisoon of solutions to security breaches.
Access controls, which prevents unauthorized system access.
Protection of information either in transit or in a storage area.
Answer:
Information
Explanation:
Good decisions are normally based on facts which are tangible information that can be analysed to show trends of key figures such as sales, income, production that are so critical in business. A well-designed and accurate database captures and stores these figures in an organised way which will enable the information or data to be analysed to make informed decisions.
Answer:
a. True
Explanation:
The three tiers in a three-tier architecture are:
Presentation Tier: Occupies the top level and displays information related to services available on a website. This tier communicates with other tiers by sending results to the browser and other tiers in the network.
Middle Tier: Also called the application tier, logic tier, business logic or logic tier, this tier is pulled from the presentation tier. It controls application functionality by performing detailed processing.
Data Tier: Houses database servers where information is stored and retrieved. Data in this tier is kept independent of application servers or business logic.
