Computer Science - 0478 CIE

Computer Architecture

Gbogbo ọrọ náà

Inside every computer is a single chip that does the actual thinking: the central processing unit. It does not work by magic but by repeating one tireless three-step routine billions of times a second, fetching an instruction, decoding it, then carrying it out. Understanding that cycle, and the small set of registers and units that perform it, is the key to explaining how any program runs.

In this lesson you will learn the role of the CPU and the microprocessor, walk through the fetch-decode-execute cycle component by component on a Von Neumann machine, and see how cores, cache and clock speed change performance. You will also meet the instruction set and the embedded systems that quietly run the devices around you.

Ebumnobi

  1. 1 (a) Understand the role of the central processing unit (CPU) in a computer (b) Understand what is meant by a microprocessor
  2. 2 (a) Understand the purpose of the components in a CPU, in a computer that has a Von Neumann architecture (b) Describe the process of the fetch-decode-execute (FDE) cycle, including the role of each component in the process
  3. 3 Understand what is meant by a core, cache and clock in a CPU and explain how they can affect the performance of a CPU
  4. 4 Understand the purpose and use of an instruction set for a CPU
  5. 5 Describe the purpose and characteristics of an embedded system and identify devices in which they are commonly used

Akọmọ Ojú-ẹkọ

The CPU is the part of a computer where data and instructions are actually processed, a little like the brain processing what your senses take in. Almost every other 0478 topic, from running software to handling interrupts, depends on understanding the cycle the CPU performs and the components that carry it out. Examiners ask you to name those components, state their roles, and explain how cores, cache and clock speed affect performance, so precise vocabulary here pays off across the whole paper.

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

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Ọ dị na Android, Windows, macOS, na Linux

Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Computer Architecture. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

  1. Which register holds the address of the next instruction to be processed? A. MDR B. CIR C. Program counter (PC) D. Accumulator Answer: C
  2. What are the three stages of the cycle a CPU uses to process an instruction? A. read, write, store B. fetch, decode, execute C. input, process, output D. open, run, close Answer: B
  3. Which component performs the mathematical and logical operations? A. Control unit B. Arithmetic logic unit (ALU) C. Memory address register D. Program counter Answer: B
  4. Increasing the number of cores in a CPU improves performance mainly because it can: A. store more data permanently B. run more fetch-decode-execute cycles at the same time C. increase the clock speed automatically D. reduce the size of the instruction set Answer: B
  5. Which is the best example of an embedded system? A. a desktop PC B. a laptop C. the controller inside a washing machine D. a cloud server Answer: C

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
Onye inyeaka mmụta AI
Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla
Ọ dị na Android, Windows, macOS, na Linux

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
Onye inyeaka mmụta AI
Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla
Ọ dị na Android, Windows, macOS, na Linux

Meecha Ajụjụ Ule Ọmarịcha

Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Computer Architecture? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.

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