Computer Science 9618/11 — May/June 2022
Cambridge AS Level · Theory Fundamentals · worked solutions for every part, with the mark scheme
Topics Security, Privacy and Data Integrity · Information Representation · Hardware · Databases · System Software · Ethics and Ownership · +1 more
Computers store data in binary form.
State the difference between a tebibyte and a terabyte.
Convert the signed denary value –100 into an 8-bit two’s complement binary integer.
Working .....................................................................................................................................
Answer ............................................................................
Convert the denary number 251 into hexadecimal. Show your working.
Working .....................................................................................................................................
Answer ............................................................................
Add the following unsigned binary integers.
0 1 0 1 0 0 0 0
+ 0 0 1 1 1 1 1 0
The rest of this paper
5 more questions- Q2Hardware20M
- Q3Security, Privacy and Data Integrity7M
- Q4Databases · Security, Privacy and Data Integrity19M
- Q5System Software · Ethics and Ownership9M
- Q6Processor Fundamentals15M