Daily Practice · GCSE Computer Science
July 2026 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in July 2026, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in July 2026
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st July 2026State what the term malware means.
- 2nd July 2026Explain why a running maximum should be initialised to the first element of the array rather than to 0.
- 3rd July 2026An 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).
- 4th July 2026Which of RAM and ROM is volatile, meaning its contents are lost when the power is removed?
- 5th July 2026Which piece of UK legislation controls how organisations must store and use people's personal data?
- 6th July 2026Given x = 5 and y = 8, state whether x < y AND x > 0 evaluates to True or False.
- 7th July 2026A programmer wants any syntax error in their program to be reported before the program starts running at all. State whether a compiler or an interpreter behaves this way, and explain why.
- 8th July 2026Give one reason why RAM on its own is not enough, and a computer also needs secondary storage.
- 9th July 2026Name the four layers of the TCP/IP model in order from the one closest to the user.
- 10th July 2026A password field requires between 6 and 12 characters. State two boundary data values that should be used to test this field.
- 11th July 2026A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
- 12th July 2026State one function carried out by the operating system of a computer.
- 13th July 2026In computational thinking, what is meant by the term 'decomposition'?
- 14th July 2026Given A = 1 and B = 1, state the value of A AND B.
- 15th July 2026Convert the denary number 39 to an 8-bit binary number, showing your working.
- 16th July 2026Define a peer-to-peer network.
- 17th July 2026A program compiles and runs but always outputs an average that is too small. State the type of error and explain why the translator did not report it.
- 18th July 2026Convert the denary number 5 to a 4-bit binary number.
- 19th July 2026A CPU has a clock speed of 4.0 GHz. Calculate how many clock cycles it completes in 2 seconds.
- 20th July 2026A simple cipher shifts every letter 2 places forward in the alphabet, wrapping around so Y becomes A and Z becomes B. Encrypt the plaintext CAT using this cipher.
- 21st July 2026An array named temps holds 12 values. State the index of the first item and the index of the last item.
- 22nd July 2026A mono sound clip has a sample rate of 4000 Hz and lasts 2 seconds. Calculate the total number of samples taken.
- 23rd July 2026State the type of program that is typically stored in ROM.
- 24th July 2026State one reason a small business might choose to use open source software instead of proprietary (closed source) software.
- 25th July 2026A FOR loop runs: total = 0, FOR i = 1 TO 4, total = total + i, NEXT i. State the value of total after the loop finishes.
- 26th July 2026Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
- 27th July 2026State the typical maximum capacity of a single-layer DVD.
- 28th July 2026State the difference between HTTP and HTTPS, and give one situation where HTTPS is essential.
- 29th July 2026State what is meant by a syntax error.
- 30th July 2026A 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.
- 31st July 2026What type of utility software reorganises files on a hard disk so fragmented parts are stored closer together?