4.2. Types of programming language, translators and integrated development environments (IDEs)
A subsection of Computer Science, 2210, through 4. Software
Listing 10 of 20 questions
Five statements about interpreters and compilers are shown in the table below. Study each statement. Tick (✓) to show whether the statement refers to an interpreter or to a compiler. Statement Interpreter Compiler creates an executable file that runs directly on the computer more likely to crash the computer since the machine code produced runs directly on the processor easier to debug since each line of code is analysed and checked before being executed slow speed of execution of program loops it is more difficult to modify the executable code, since it is in machine code format State why a compiler or an interpreter is needed when running a high-level program on a computer. Give one benefit of writing a program in a high-level language. Give one benefit of writing a program in a low-level language. Study the following three sections of code. A: 1 0 1 0 1 1 0 1 1 1 0 0 1 1 1 0 1 0 1 1 0 1 1 1 B: LDA X INC X STA Y C: FOR x ← 1 TO 10 READ n ENDFOR Identify, using the letters A, B or C, which of the above codes is an example of assembly code, high-level language code or machine code: Assembly code High-level language code Machine code
2210_s15_qp_12
THEORY
2015
Paper 1, Variant 2
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Annie writes a paragraph of text as an answer to an examination question about programming languages. Using the list given, complete Annie’s answer by inserting the correct six missing terms. Not all terms will be used. • Assembly • Converter • Denary • Hexadecimal • High-level language • Low-level language • Machine Code • Source Code • Syntax • Translator The structure of language statements in a computer program is called the . A programming language that uses natural language statements is called a . When programs are written in this type of language they need a to convert them into . A programming language that is written using mnemonic codes is called a . An example of this type of language is language.
2210_s19_qp_11
THEORY
2019
Paper 1, Variant 1
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A programmer writes a computer program using a high‑level language. Tick (3) one box to show which statement is correct about writing computer programs in a high‑level language. A Mnemonics are used to create instructions. B The computer program is harder to debug than a low‑level language program. C The computer program is machine independent. D The hardware of the computer can be directly manipulated. The programmer uses a compiler to translate the computer program. Describe how the compiler translates the computer program. Describe how the compiler reports errors. The programmer uses an integrated development environment (IDE) to create the computer program. One function of the IDE is that it has the built‑in compiler. Give three other common functions of an IDE.
2210_s23_qp_12
THEORY
2023
Paper 1, Variant 2
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Give two reasons why a programmer would choose to write code in a low-level language. High-level languages require either an interpreter or a compiler to translate the program. The table below lists a number of statements about language translators. Tick (3) to show which statements refer to interpreters and which refer to compilers. Statements Interpreter (3) Compiler (3) Translates the source code into machine code all at once Produces an executable file in machine code Executes a high-level language program one instruction at a time Once translated, the translator does not need to be present for the program to run An executable file is produced
2210_w16_qp_12
THEORY
2016
Paper 1, Variant 2
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Questions Discovered
20