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AQA AS LEVEL COMPUTER SCIENCE PAPER 1 QUESTION PAPER 2023 (7516/1). DOWNLOAD OFFICIAL AND VERIFIED AQA AS LEVEL COMPUTER SCIENCE PAPER 1 QUESTION PAPER 2023 ON www.leakedexams.com.
 1 A security system uses a motion sensor, a keypad and an alarm bell.
The system operates as follows:
• the system is initially off
• when the system is switched on it goes into sensing mode
• the system can be switched off at any time by entering the correct code on the
keypad
• if the system detects movement while in sensing mode it goes into alert mode
• after the system has been in alert mode for 10 seconds, it enters the alarm bell
ringing mode
• if an incorrect code is entered on the keypad, once the system has been switched
on, the system remains in its current mode.
| Author | OCR KING |
| Published | 30 Jul 2024 |
| Included files | |
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