a$)$How does computerized accounting differ from non$-$computerised accounting? $(6$ marks$)$ b$)$What are the main security issues in computerised accounting? $(6$ marks$)$ c$)$What are the main ethical issues in computerised accounting? $(6$ marks$)$ d$)$Discuss the benefits of computerized payroll accounting programmes which can be realized by an accountant. $(7$ marks$)$ Total $25$ marks