The control unit is one part of the processor. Name the other two parts of the processor.
Data is stored in memory using bits. What is the largest positive number that can be stored
using 7 bits?
Describe two benefits of networking computers rather than having stand-alone computers.
Mr Williams uses a computer program to record the absences in his class. He types an X
beside the name of each absent pupil. At the bottom of the class list, the program shows the
total number of pupils absent.
Absent = 2
Which one of the following standard algorithms would the program have to use?
• Find minimum
• Count occurrences
• Input validation
• Find maximum
• Linear search
INT and RND are built-in calculations within most High Level Languages.
What is the correct term for built-in calculations?
Computer software normally comes with a technical guide and a user guide.
Suggest two contents you would expect to find in a “user guide”.
A conditional statement had been designed in pseudocode. It should display the word
“teenager” if an age is between 13 and 19 inclusive. The conditional statement is shown
IF age >= 13 OR age <= 19 THEN
show the word “teenager”
When the age 75 is entered the word “teenager” is displayed.
What mistake has been made in the pseudocode?
Describe the purpose of a string variable in a computer program.
Describe one use of a text editor during the software development process.
10 Computer viruses have become more common over the last 10 years.Describe two ways in
which computer viruses may be spread.
Int 2 Computing: Past Paper 2005
Mr Richardson is writing a quiz program for his pupils. A choice of answer is given and the
user must type the letter (A, B, C or D).
Question: What is the capital of France?
Enter your answer (A, B, C or D): B
To make sure that only A, B, C or D is accepted, Mr Richardson includes the following