Processors
Gbogbo ọrọ náà
Every digital device you use, from a smartphone to a supercomputer, relies on a processor to make things happen. The processor fetches instructions, works out what they mean, and carries them out, repeating this cycle billions of times each second. Understanding how it does this, and what determines how quickly it works, is central to choosing and evaluating any ICT system.
In this lesson you will learn how the central processing unit carries out its fetch-decode-execute cycle, what clock speed really measures, and why the number of cores matters. These concepts appear regularly on both Paper 1 and Paper 2 of the Edexcel IGCSE ICT examination.
Ebumnobi
- Understand the function of the processing unit (CPU)
- Know how the speed of a processor is measured
Akọmọ Ojú-ẹkọ
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.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Processors. 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.
- What does CPU stand for? A) Central Program Unit B) Central Processing Unit C) Computer Processing Unit D) Central Performance Unit Answer: B
- Which of the following is the correct order of the processor cycle? A) Execute, Fetch, Decode B) Decode, Fetch, Execute C) Fetch, Decode, Execute D) Fetch, Execute, Decode Answer: C
- A processor has a clock speed of 3 GHz. How many clock cycles does it complete per second? A) 3 million B) 3 billion C) 3 thousand D) 3 trillion Answer: B
- A dual-core processor has: A) Two separate computers B) Two independent processing units C) Twice the clock speed of a single-core D) Two monitors Answer: B
- Which type of processor would be most suitable for an embedded system in a microwave oven? A) Octa-core 4.0 GHz B) Quad-core 3.5 GHz C) Single-core low-power D) Dual-core 3.0 GHz 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.
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.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Processors? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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