4. Software
A section of Computer Science, 0478
Listing 10 of 64 questions
A programmer has designed a three‑dimensional (3D) interactive computer game. They are going to develop a program for the game. The program needs to run efficiently, but it must also be developed as soon as possible. Tick (✓) one box to identify whether the programmer should use a high‑level language or a low‑level language to develop the program. Explain the reasons for your choice. High‑level language Low‑level language Reasons for your choice If the programmer chooses a high‑level language, they can use a compiler or an interpreter to translate the high‑level language into a low‑level language. Describe the operation of a compiler and of an interpreter. Compiler Interpreter
0478_m23_qp_12
THEORY
2023
Paper 1, Variant 2
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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
0478_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.
0478_s19_qp_11
THEORY
2019
Paper 1, Variant 1
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Questions Discovered
64