Computer Science 9618/13 — October/November 2021
Cambridge AS Level · Theory Fundamentals · worked solutions for every part, with the mark scheme
8
questions
75
marks
90
minutes
Topics Information Representation · Security, Privacy and Data Integrity · Communication · Hardware · Ethics and Ownership · System Software · +2 more
Q1Information RepresentationFree sample
(a)
5M
Draw one line from each binary value to its equivalent (same) value on the right.
(b)
(i)2M
Perform the following binary addition. Show your working.
10101010
+ 00110111
(ii)1M
State how an overflow can occur when adding two binary integers.
(c)1M
Convert the hexadecimal value F0 into denary.
The rest of this paper
7 more questions- Q2Security, Privacy and Data Integrity9M
- Q3Hardware8M
- Q4Ethics and Ownership · System Software14M
- Q5Databases · Security, Privacy and Data Integrity10M
- Q6Processor Fundamentals8M
- Q7Information Representation · Communication8M
- Q8Communication9M
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