100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Summary 9618 Chapter 4: Processor fundamentals £3.49   Add to cart

Summary

Summary 9618 Chapter 4: Processor fundamentals

 7 views  0 purchase

4.1: CPU Architecture 4.2 Assembly language 4.3 Bit manipulation

Preview 2 out of 13  pages

  • No
  • Chapter 4
  • September 10, 2024
  • 13
  • 2022/2023
  • Summary
book image

Book Title:

Author(s):

  • Edition:
  • ISBN:
  • Edition:
All documents for this subject (7)
avatar-seller
siennathompson1
4 Processor Fundamentals
4.1 Central Processing Unit (CPU) Architecture

Show understanding of the basic Von Neumann model for a computer
system and the stored program concept
In a classic Von Neumann computer, instructions and data are both
stored in the same shared memory space and have one system bus
connecting them. One address bus, one control bus and one data bus.




Stored program concept:



Show understanding of the purpose and roles of the Arithmetic and
Logic Unit (ALU), Control Unit (CU) and system clock, Immediate Access
Store (IAS)

The ARITHMETIC LOGIC UNIT (ALU) handles the data processing
inside the CPU.
It consists of two types of processing:

1. Arithmetic operation - it performs standard arithmetic operations
such as addition, subtraction, multiplication

2. Logic operation - it deals with logic and comparisons such as 'is this
value greater than that value' the answer is always either 'true' or




4 Processor Fundamentals 1

, 'false'.

The result can be stored anywhere in memory with the relevant
command. But for efficient programming, the result tends to be stored
in the accumulator register. Along with the answer, a flag is set by the
status register.


The CONTROL UNIT has three main jobs

1. It controls the way data moves around the CPU by controlling the
buses.

2. It controls and monitors the flow of data between the CPU and other
components such as input devices, memory, graphics card etc

3. It executes the instructions provided by the program.

The collection of instructions it can carry out is called the 'instruction
set' of the CPU. The instruction set is hard-wired into the CPU when it
was designed.


SYSTEM CLOCK:




A CPU is a sequential machine i.e. a processing core within it carries
out one instruction at a time. To coordinate this action, the CPU has an
internal quartz crystal clock that runs at a certain speed (the clock
frequency or more commonly referred to as 'clock speed’).The higher
the clock frequency, the faster the CPU can run and the more
instructions that can be processed every second.


IMMEDIATE ACCESS STORE:




4 Processor Fundamentals 2

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller siennathompson1. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £3.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

73216 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£3.49
  • (0)
  Add to cart