Daily Practice · GCSE Computer Science

Daily Practice - GCSE Computer Science

Systems, data representation, networks, algorithms and programming.

12th October 2022

5 questions · GCSE · 123 questions in this band

1
SQL and Data Handling
A table called bookings has fields bookingId, customerName and eventDate. Write an SQL statement that deletes the booking with bookingId 45.
2
Trace Tables and Binary/Hex Conversions
Convert the 8-bit binary number 10110100 directly to hexadecimal by splitting it into nibbles.
3
Systems Architecture
Convert the denary number 156 to an 8 bit binary number.
4
Memory and Primary Storage
Order these from fastest access speed to slowest: RAM, cache, registers, secondary storage.
5
Secondary Storage
Give one example of an optical secondary storage device.

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