Unit 1.1 System Architecture Flashcards Preview

Computer Science (OCR) > Unit 1.1 System Architecture > Flashcards

Flashcards in Unit 1.1 System Architecture Deck (24)
Loading flashcards...
1
Q

What is hardware?

A

Physical components of a computer system

2
Q

Give three examples of input devices

A

Keyboard, Mouse and Touchpads

3
Q

Give three examples of output devices

A

Speakers, Headhpones and printers

4
Q

Give three examples of storage devices

A

Floppy disk, Hard disk drive and Magnetic card

5
Q

Give two examples of processing devices

A

Motherboard and Sound card

6
Q

Who was John von Neumann

A

He was a Hungarian gentlemen who came up with the idea of modern computer architecture, he was also a mathematician

7
Q

What does the term ‘computer architecture’ mean

A

Set of rules and methods that describe the functionality, organisation and implementation of compter systems

8
Q

What are the two basic premises of ‘Von Neumann’ architecture

A

Data and programs are stored in the same location.

Data and programs are saved as binary

9
Q

What does CPU stand for

A

Central Processing Unit

10
Q

What is the purpose of the CPU

A

Carries out all of the processing of instructions

11
Q

What is it made up of?

A

Made up of transistors (Small electronic switch)

12
Q

What determines the speed of the CPU?

A

Clock Chip determines the speed and it controls the timing of signals. It works by containing quartz, which vibrates at a constant rate when an electric current is applied to it

13
Q

What speed would a typical processor work at?

A

4-6 GHZ (Giga hertz)

14
Q

How many instructions per second is this?

A

Four billion instructions per second.

15
Q

What process does the CPU continually carry out?

A

The CPU continually carries out the fetch-decode-execute-cycle

16
Q

What happens after the computer is switched on?

A

The order in which a computer searches for non-volatile data storage devices containing program code to load the operating system

17
Q

PT.1)

What are the two vital components of the CPU?

A

Ram is a type of computer memory that can be accessed randomly. Its location is close to the motherboard and CPU to reach the computers processors.

18
Q

PT.2)

What are the two vital components of the CPU

A

Motherboard is a printed circuit board containing the principal components of a computer. It offers the connections that help all the components of a computer working together, and it allows all the parts of the computer to receive power and communicate with one another.

19
Q

How do data and control signals move around and between components?

A

Buses

20
Q

What are the 3 main types?

A

Data bus
Control bus
Address bus

21
Q

What is a register

A

A register is a temporary storage area built into a CPU. Some registers are used internally and cannot be access outside the processor; while others are user-accesible

22
Q

PT.1)

State the main 5

A

Accumulator stores the results of calculations carried out by the ALU

23
Q

PT.2)

State the main 5

A

Current instructions register stores the most recently fetched instruction while it is waiting to be decoded and executed

24
Q

PT.3)

State the main 5

A

Memory Address Register stores the location of where da