An automated library book-sorting system uses different hardware components. Each type of component has an identifier code as shown in the table:
| Code | Component |
|---|---|
| RF | RFID Reader |
| BS | Book Scanner |
| SG | Sorting Gate |
A program is written to initialize and route books through these components. The program:
VerifyReaderCode() to check whether the entered code is valid.AssignBookToShelf() using a combined assignment key.01 readerCode = input("Enter reader code to initialize")
02 if (VerifyReaderCode(readerCode)) then
03 shelfNumber = input("Enter target shelf identifier")
04 assignmentKey = readerCode + shelfNumber
05 AssignBookToShelf(assignmentKey)
06 endif
Give the identifier of a variable used in the program.
Practise OCR GCSE Computer Science Programming fundamentals with exam-style questions for GCSE Computer Science. 100 questions, matched to the OCR GCSE Computer Science (J277) specification and written in Component 01 and Component 02 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.