Computer Science - 4CP0 PearsonEdexcel

Programming Languages

Bayani Gaba-gaba

A processor only ever executes one thing: streams of binary numbers called machine code. Nobody writes real programs that way any more, yet every program that runs, however it was written, ends up as exactly that. This lesson explains the layers between a programmer's source code and the machine code the processor actually obeys, and the trade-offs behind each layer.

You will compare high-level and low-level languages, meet machine code and assembly language directly, and work through how compilers, interpreters and assemblers each translate source code differently, with different consequences for speed, portability and debugging.

Manufura

  1. Understand what is meant by high-level and low-level programming languages and understand their suitability for a particular task
  2. Understand what is meant by an assembler, a compiler and an interpreter when translating programming languages and know the advantages and disadvantages of each

Takardar Darasi

A processor's instruction set only understands binary patterns: machine code. Every program a computer runs, whatever language it was written in, must eventually exist as machine code specific to that processor before it can execute. The question a programmer faces is not whether to reach machine code, but how directly to write towards it.

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Nazarin Darasi

Barka da kammala darasi akan Programming Languages. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.

Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.

Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.

  1. Which of the following is the lowest-level form a program can take? A) High-level language source code B) Assembly language C) Machine code D) Pseudocode Answer: C
  2. What translates assembly language into machine code? A) A compiler B) An interpreter C) An assembler D) An operating system Answer: C
  3. Which statement about a compiler is correct? A) It translates and runs one statement at a time B) It translates the whole program before it is run and produces an executable file C) It only works with low-level languages D) It cannot report more than one error Answer: B
  4. An interpreter reaches a statement containing an error. What does it do? A) Ignores the error and continues to the next statement B) Reports all errors in the program at once C) Stops at that statement and reports the error immediately D) Automatically corrects the error Answer: C
  5. Which of these is the strongest reason to choose a high-level language over a low-level language for most general application software? A) High-level languages always run faster B) High-level languages are easier to write and are not tied to one processor's instruction set C) High-level languages need no translator at all D) High-level languages give more direct control over memory addresses Answer: B

Akwai a cikin manhajar Green Bridge

Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.

Cikakkiyar bayanan darasi tare da zane-zane
Mataimakiyar koyo da AI
Yi karatu ba tare da intanet ba, a kowane lokaci, a ko'ina
Akwai a Android, Windows, macOS, da Linux

Akwai a cikin manhajar Green Bridge

Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.

Cikakkiyar bayanan darasi tare da zane-zane
Mataimakiyar koyo da AI
Yi karatu ba tare da intanet ba, a kowane lokaci, a ko'ina
Akwai a Android, Windows, macOS, da Linux

Yi Aikin Tambayoyin Gwaji

Kana son yin aikin tambayoyin gwaji kan Programming Languages? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.

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