Computer Science - 4CP0 PearsonEdexcel

Hardware

Akopọ

Underneath every app, game and website sits the same handful of physical components doing the same handful of jobs: something that carries out instructions, something that holds them while they are used, something that stores them long-term, and something that gets data in and results out. Understanding how these pieces of hardware fit together, and what makes some computers faster than others, is the foundation for everything else in this course.

In this lesson you will learn how the CPU, memory, storage and input/output devices work together, the differences between RAM, ROM, cache and virtual memory, how the fetch-decode-execute cycle carries out a stored program, what makes one CPU faster than another, how data is physically stored on different types of media, and why some devices use embedded systems instead of a general-purpose computer.

Awọn Afojusun

  1. Understand the function of the hardware components of a computer system (central processing unit (CPU), main memory, secondary storage, input and output devices) and how they work together
  2. Understand the function of different types of memory (random-access memory (RAM), read-only memory (ROM), cache, virtual memory)
  3. Understand the concept of a stored program and the role of components of the CPU (control unit (CU), arithmetic/logic unit (ALU), registers, clock, address bus, data bus, control bus) in the fetch-decode-execute cycle (the Von Neumann model)
  4. Understand factors that affect the performance of the CPU (clock speed, number of processor cores, size of cache, type of cache)
  5. Understand how data is stored on physical devices (magnetic, optical, solid state)
  6. Understand the concept of storing data in the cloud and other contemporary secondary storage
  7. Understand the need for embedded systems and their functions

Akọ̀wé Ẹ̀kọ́

Every computer system, from a smartphone to a supercomputer, is built from the same categories of hardware working together.

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Ìdánwò Ẹ̀kọ́

Oriire fun ipari ẹkọ lori Hardware. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.

Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.

Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.

  1. Which type of memory is volatile and holds the programs and data currently in use? A) ROM B) RAM C) Cache D) Optical storage Answer: B
  2. Which CPU component performs arithmetic and logical operations? A) Control unit B) Arithmetic/logic unit C) Clock D) Address bus Answer: B
  3. Which bus carries the address of the memory location the CPU wants to access? A) Data bus B) Control bus C) Address bus D) System bus Answer: C
  4. Which factor allows a CPU to process more than one instruction at exactly the same time? A) A higher clock speed alone B) A larger ROM C) Having multiple processor cores D) A smaller cache Answer: C
  5. Which storage technology stores data using transistors that are switched on or off, with no moving parts? A) Magnetic B) Optical C) Solid state D) Cloud Answer: C

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
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O wa lori Android, Windows, macOS, ati Linux

O wa lori ohun elo Green Bridge

Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.

Awọn akọsilẹ ẹkọ ni kikun pẹlu awọn aworan apejuwe
Oluranlọwọ ẹkọ ti AI ṣe agbara rẹ
Kọ ẹkọ laisi intanẹẹti, nigbakugba, nibikibi
O wa lori Android, Windows, macOS, ati Linux

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Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Hardware? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.

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