O Level Computer Science 2210 | P1 & P2 Workbook | with Solution| 2015-2020 | Sir Ali Akram

Section 1: Workbook Paper 1 (Theory of Computer Science)
1.1 Data Representation
1.1.1 Binary systems…………………………………………..………………………………………………………. 7
1.1.2 Hexadecimal…………………………………………..………………………………………………………… 21
1.1.3 Data storage…………………………………………..………………………………………………………… 28
1.2 Communication and Internet technologies
1.2.1 Data transmission…………………………………………..…………….…………………………………. 44
1.2.2 Internet principles of operation……………………………………….……..……………………….. 53
1.3 Hardware and software
1.3.1 Logic gates…………………………………………..……………………………….…………..…………….. 63
1.3.2 Computer architecture and the fetch-execute cycle………………..………………………. 82
1.3.3 Input Devices…………………………………………..………………………………….…………………… 91
1.3.4 Output devices…………………………………………..………………………………….………………. 111
1.3.5 Memory, storage devices and media…………………………………………..…..……………. 115
1.3.6 Operating systems…………………………………………..………………………………..….………. 126
1.3.7 High- and low-level languages and their translators………………………………….…… 127
1.4 Security…………………………………………..…………………………………………..……………....... 133
1.5 Ethics…………………………………………..………………………………………………………………….. 146
SOLUTION PAPER 1
Solution Binary systems…………………………………………..……………………………..………………….. 152
Solution Hexadecimal…………………………………………..…………………………………..……………….… 155
Solution Data storage…………………………………………..……………………………………..…………….… 157
Solution Data transmission…………………………………………..………………………………..…………… 161
Solution Internet principles of operation…………………………………………..……………..………… 163
Solution Logic gates…………………………………………..……………………………………………….………. 166
Solution Computer architecture and the fetch-execute cycle……………………………….…..… 171
Solution Input Devices…………………………………………..………………………………………………….… 173
Solution Output devices…………………………………………..……………………………………………….... 178
Solution Memory, storage devices and media…………………………………………..…………………. 179
Solution Operating systems…………………………………………..……………………………………..……. 182
Solution High- and low-level languages and their translators………………………………..…… 183
Solution Security…………………………………………..…………………………………………..…………….... 185
Solution Ethics…………………………………………..……………………………………………………………… 189

Section 2: Workbook Paper 2 (Practical Problem-solving and Programming)
2.1 Algorithm design and problem-solving
2.1.1 Problem - solving and design…………………………………………..…………………………….. 192
2.1.2 Pseudocode & Flowchart…………………………………………..………………………………….. 213
2.2 Programming
2.2.1 Programming Concepts…………………………………………..…………………………………….. 240
2.2.2 Data Structures; Arrays…………………………………………..……………………………………… 251
2.2.3 Databases…………………………………………..………………………………………………………….. 252
SOLUTION PAPER 2
Solution Problem - solving and design…………………………………………..……………………………. 272
Solution Pseudocode & Flowchart…………………………………………..……………………………….... 276
Solution Programming Concepts…………………………………………..………………………………..…… 281
Solution Data Structures; Arrays…………………………………………..……………………………………. 284
Solution Databases…………………………………………..………………………………………………………… 285
Syllabus……………………………………………………………………………………………………………. 289