STM OCR GCSE Computer Science: Section 1, Test 1

1. Which of these contains instructions used by the CPU when a computer is booting up?

• Hard disk drive

• RAM

• ROM

• Internet

Which part of the CPU performs operations such as AND, OR and NOT?

• Arithmetic Logic Unit (ALU)

• Control Unit (CU)

• Memory Data Register (MDR)

• Memory Address Register (MAR)

A device driver is a piece of software which...

• ... provides a three course meal

• ... provides a user interface

• ... allows an OS to interact with internal hardware or peripherals

• ... manages user files and applications

Which of the following types of storage media are commonly used by businesses to achieve large amounts of data?

• Hard disk drive

• Optical disc

• Magnetic tape

• Pen and Paper

Processor registers temporarily hold small amounts of data needed by...

• ... the CPU

• ... RAM

• ... the monitor

• ... the hard disk drive

Which of these types of storage generally has the highest cost per gigabyte?

• Solid state drives

• Optical Storage

• Hard disk drives

• Magnetic tape

True of False - "In the Von Neumann architecture, the same memory unit is used for data and instructions"

• True

• False

An operating system helps with file management by...

• ...compressing every file

• ... arranging the files into a hierarchical structure

Which of these contain an embedded system (select more than one)

• Smartphone

• Dishwasher

• Laptop

• Washing machine

• Tablet

Harambe uses compression software on a file. What are the benefits of compressing the file? (select more than one)

• Increases the size of the file

• Increases the quality of the file

• Makes the file more secure

• Reduces the size of the file, so takes up less storage space

• Should be quicker to transfer over the internet