Daily Practice · GCSE Computer Science
February 2026 - GCSE Computer Science 5-a-day
Every GCSE Computer Science sheet published in February 2026, with answers. Systems, data representation, networks, algorithms and programming.
Every sheet in February 2026
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 2026Define the term 'pixel'.
- 2nd February 2026Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
- 3rd February 2026Which piece of UK legislation makes it a criminal offence to gain unauthorised access to a computer system?
- 4th February 2026Evaluate the expression 23 DIV 4.
- 5th February 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.
- 6th February 2026A 1 TB hard disk drive costs 40 pounds. A 500 GB solid-state drive costs 60 pounds. Calculate the cost per gigabyte of each device, and state which is cheaper per GB. Use 1 TB = 1000 GB.
- 7th February 2026Define the term protocol.
- 8th February 2026A 'quantity' field on a website must only accept whole numbers from 1 to 10. Which validation check identifies that 15 has been entered?
- 9th February 2026A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
- 10th February 2026A row of 8 pixels is WWWBBBWW. Use run-length encoding to encode this row as pairs of (colour, run length).
- 11th February 2026An array contains [9, 2, 6], to be sorted using insertion sort. Show the state of the array after each new element has been inserted into its correct position.
- 12th February 2026Complete: NOT 0 = ?
- 13th February 2026Convert the denary number 39 to an 8-bit binary number, showing your working.
- 14th February 2026State what LAN stands for.
- 15th February 2026Explain the purpose of a breakpoint.
- 16th February 2026An 8-bit register stores the value 01100000 (denary 96). State the resulting 8-bit binary value after a left shift by 1 place, and state whether an overflow occurs.
- 17th February 2026Which CPU register holds the address of the next instruction to be fetched?
- 18th February 2026Distinguish between the network security threats known as phishing and pharming.
- 19th February 2026Explain why a running maximum should be initialised to the first element of the array rather than to 0.
- 20th February 2026A row of pixels is encoded using run-length encoding as: 3W 4B 3W. State the original row of pixels it represents.
- 21st February 2026A photo file is 3.5 MB in size. Calculate its size in kilobytes (KB). Use 1 MB = 1000 KB.
- 22nd February 2026A streaming company records which shows each user watches and uses this to recommend similar shows. Explain one ethical concern this could raise, even if the company only uses the data to improve recommendations.
- 23rd February 2026State the most appropriate data type for storing a person's shoe size if only whole sizes (e.g. 7, 8, 9) are allowed.
- 24th February 2026Give one specific way this code could be refined without changing what it does: a = 5, b = 3, c = a + b, PRINT c
- 25th February 2026Give one example of an optical secondary storage device.
- 26th February 2026Name the four layers of the TCP/IP model in order from the one closest to the user.
- 27th February 2026State the term used for realistic data that a program would be expected to handle during normal use.
- 28th February 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.