Daily Practice · GCSE Computer Science
September 2013 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in September 2013, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in September 2013
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 2013Give one example of an optical secondary storage device.
- 2nd September 2013A user reads the same email on a phone and a tablet, and deleting it on one deletes it on the other. Which protocol is in use and why?
- 3rd September 2013State the term used for realistic data that a program would be expected to handle during normal use.
- 4th September 2013A table called members has fields memberId, firstName, lastName and joinYear. Write an SQL statement that adds a new record with memberId 12, firstName 'Priya', lastName 'Shah' and joinYear 2026.
- 5th September 2013State the difference between lossy and lossless compression.
- 6th September 2013State the condition that must be met before a binary search can be used on an array.
- 7th September 2013A logic circuit has inputs C and D. C feeds into a NOT gate; the output of the NOT gate and D feed into an OR gate, giving output Y. Write the Boolean expression for Y and state its value when C = 1 and D = 0.
- 8th September 2013Convert the hexadecimal number FF to an 8-bit binary number.
- 9th September 2013Which piece of network hardware connects a LAN to another network such as the internet, directing data packets based on IP address?
- 10th September 2013Name the translator used for assembly language and describe how it differs from a compiler.
- 11th September 2013Convert the denary number 45 to hexadecimal.
- 12th September 2013What does the acronym CPU stand for?
- 13th September 2013State what the term malware means.
- 14th September 2013Explain what happens if a program tries to read index 5 of an array declared with 5 elements.
- 15th September 2013An uncompressed file is 6000 KB. After lossless compression it is 1500 KB. Calculate the compression ratio in the form n:1 (original size : compressed size).
- 16th September 2013Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 17th September 2013Which piece of UK legislation controls how organisations must store and use people's personal data?
- 18th September 2013Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 19th September 2013State the correct order of the three operations used to read data from a text file.
- 20th September 2013Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 21st September 2013Define the term protocol.
- 22nd September 2013A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 23rd September 2013A table called products has fields productId, name, price and stock. Write an SQL statement that changes the price of the product with productId 7 to 15.99.
- 24th September 2013State one function carried out by the operating system of a computer.
- 25th September 2013In computational thinking, what is meant by the term 'decomposition'?
- 26th September 2013Given A = 1 and B = 1, state the value of A AND B.
- 27th September 2013Convert the denary number 200 to hexadecimal, showing your working.
- 28th September 2013Define a peer-to-peer network.
- 29th September 2013Explain the purpose of a breakpoint.
- 30th September 2013Convert the denary number 5 to a 4-bit binary number.