Main Components of Computer Systems

What is the purpose of an analogue to digital converter (ADC)?

• To convert digital data into analogue data

• To convert analogue data into digital data

• To store data permanently

• To process data

What are the four key components of a typical computer system?

• CPU, RAM, ROM, Hard Disk Drive

• CPU, RAM, ROM, Graphics Card

• CPU, RAM, ROM, Network Card

• CPU, RAM, ROM, Power Supply

What is the main difference between RAM and ROM?

• RAM is permanent memory, while ROM is temporary

• RAM is volatile, while ROM is non-volatile

• RAM can be read from, while ROM can be written to

• RAM is faster than ROM

What does the BIOS do when the computer is turned on?

• Loads the operating system into RAM

• Checks if all devices are present and functional

• Stores the date and time

• All of the above

What is the purpose of backing storage?

• To store data temporarily

• To store data permanently

• To process data

• To convert data

What is the main function of an input device?

• To display output from the computer

• To allow data to be entered into a computer

• To store data permanently

• To process data

What is the main difference between input and output devices?

• Input devices send data to the computer, output devices receive data

• Input devices receive data from the computer, output devices send data

• Input devices are more complex than output devices

• Output devices are used to enter data into the computer

What are the general tasks for a typical operating system?

What are the four different types of user interface offered by operating systems?

What is a command line interface (CLI)?