Materials...
There is a COMP2Revison Guide and a Computing2 (<old but similar spec) booklet plus Crosswords.
and further resources ... AS Technical A2 Technical

By the end of half term (Autumn) read / learn the first 3 Units of Computing2, that is
2.1: Fundamentals of Computer Systems
2.2: Fundamental Hardware Elements of Computers
2.3: Machine Level Architecture

Spring term from the Bond and Langfield Textbook...Unit 2

7 Machine-Level Architecture p136-
including...
7.1 Logic Gates p137-p145
7.2 Computer architecture p146-157
7.3 Basic Machine code p158-162 See the 6502 assembler! The Op Codes + Instruction Set.

8 Computer Systems
8.1 Hardware Devices p163-180
8.2 Classification of Software p181-185

After Spring half term...

9. The Internet
9.1 Structure of the Internet p186-201
9.2 Website Design p202-213

Easter break...

10. Consequences of uses of Computers p214 - 220

Summer Term
Exam style questions p221-p241
Sample / Past papers.

Past Papers

COMP2-QP-JAN09 COMP2-QP-JUN09 COMP2-QP-JAN10 COMP2-QP-Jun10

Past Paper Answers

COMP2-MS-JAN09 COMP2-MS-JUN09 COMP2-MS-JAN10 COMP2-MS-JUN10