OCR 275 Fundamentals of Computer Systems

A computer system is made up of hardware (physical components) and software (tells the hardware what to do) - True or False?

• True
• False

What is a computer?

• An electronic device that manipulates data.
• Electronic device that can receive data, process it, store and produce an output

What is meant by the term 'hardware'?

• The physical components that you can touch or pick up.
• Hardware gives instructions.

What is meant by the term 'software'?

• Software is the physical things you can pick up.
• Software gives instructions to the hardware.

Which of the following defines what is meant by an input device?

• Presents the results of processing.
• Converts analogue data into a digital form that a computer can understand.
• Hardware that is used for the long term storage of files (non-volatile).
• A program that runs on a computer system.

Which of the following defines what is meant by an Output device?

• Converts analogue data into a digital form that a computer can understand.
• A program that runs on a computer system.
• Hardware that is used for the long term storage of files (non-volatile).
• Presents the results of processing.

Which of the following defines what is meant by a Storage device?

• Presents the results of processing.
• Hardware that is used for the long term storage of files (non-volatile).
• A program that runs on a computer system.
• Converts analogue data into a digital form that a computer can understand.

Medical, planes and nuclear reactor computer systems are known as?

• Computer systems
• Mainframe computers
• Life critical systems
• Desktop computers

System availability is the % of time it is available for - True or False?

• True
• False

A way of measuring a systems reliability is to measure the time between system failures.  What is this called?

• Test-Retest Reliability
• MTBF - Mean Time Between Failure
• Parallel-Forms Reliability
• Internal Consistency Reliability