Section 5: Computer systems + databases

Question 1

What is a computer system

Answer 1

consists of hardware and software that work together to process data

Question 2

Hardware

Answer 2

physicl stuff that make up the computer eg monitor or cpu

Question 3

software

Answer 3

programs the computer system runs

Question 4

application software

Answer 4

programs that help the user perform specific tasks

Question 6

embedded system

Answer 6

computers built into other devices

Question 7

CPU

Answer 7

processes all of the data and instructions that make the system work

Question 8

characteristics that affect the processing power of the cpu

Answer 8

clock speed, number of cores, cache size and type

Question 9

5 main parts of the cpu

Answer 9

-control unit
-arithmetic logic unit
-cache
-clock
-buses

Question 10

Role of the control unit (CU)

Answer 10

manage fetch decode execute cycles and controls flow of data inside and outside the cpu

Question 11

role of the ALU

Answer 11

completes calculations, performs logic operations (AND, NOT OR) and binary shifts.

Question 12

CACHE in the cpu

Answer 12

stores regularly used data so the cpu can access it quicker next time it is needed.
have very low capacity and is expensive compared to secondary storage and ram