1.1 systems architeture

Question 1

CPU

Answer 1

(Central processing unit) the part of the computer that proccesses the data and contains key components which make the computer work

Question 2

embedded system

Answer 2

a computer built into a device and is built for purpose meaning it only does a specific job.

Question 3

cooling fan

Answer 3

extracts hot air from the computer case to stop the risk of overheating it.

Question 4

optical drive

Answer 4

for read/writing of optical disks

Question 5

graphics card

Answer 5

handle graphics and image processing

Question 6

motherboard

Answer 6

the main circuit board in the computer where the hardware is connected

Question 7

CU

Answer 7

(control unit) uses the fetch-decode-execute cycle to execute program instructions. controls all data flow inside the CPU

Question 8

ALU

Answer 8

(arithmetic logic unit) does all the calculations for the computer.

Question 9

cache

Answer 9

it stores regularly used data so the CPU can access it quickly

Question 10

PC

Answer 10

(program counter) holds the memory address for each cycle of fetch-decode-execute.

Question 11

accumulator

Answer 11

stores the results of the ALU

Question 12

MAR

Answer 12

holds the address of where the data or instruction is located

Question 13

MDR

Answer 13

holds the actual instruction or data.

Question 14

memory

Answer 14

holds the program instructions and the program data

Question 15

clock

Answer 15

it governs the number of instructions carried out by a single processor core per second (measured in Hz)

Question 16

core

Answer 16

each core does the fetch-decode-execute cycle independently for its given instruction meaning the more cores the faster the processing speed.