A fully descriptive and consise summary for everything you need to know, simply in as little words as possible for Computer Science OCR A level Paper 1.
The document is 32 pages long, and it was typed out by myself while studying for an A*. It is definitely the resourse which will provide you w...
CONTENTS
1.1 The characteristics of contempary processors ................................................................................................. 4
1.1.1 Structure and Function of the processor ................................................................................................... 4
Magnetic ......................................................................................................................................................... 6
RAM & ROM ................................................................................................................................................... 6
1.2 Software and software development ............................................................................................................... 8
1.2.1 Systems software ....................................................................................................................................... 8
Types of operating systems ............................................................................................................................ 8
Stages of compilation ................................................................................................................................... 11
Nature of applications .................................................................................................................................. 12
Open-Source vs Closed-Source ..................................................................................................................... 12
1.2.3 Software Development ............................................................................................................................ 13
Writing and following algorithms ................................................................................................................. 13
, 2
1.2.4 Types of Programming language ............................................................................................................ 14
Procedural language ..................................................................................................................................... 14
Assembly language ....................................................................................................................................... 14
Modes of adressing memory ........................................................................................................................ 14
1.3 Exchanging Data ............................................................................................................................................. 16
1.3.1 Compression, encryption and hashing .................................................................................................... 16
Structured query language ........................................................................................................................... 17
Networks and Protocols ............................................................................................................................... 19
The internet structure .................................................................................................................................. 20
DNS ............................................................................................................................................................... 20
Client server .................................................................................................................................................. 20
1.3.4 Web technologies .................................................................................................................................... 23
Lossy vs Lossless ........................................................................................................................................... 23
Bitwise manipulation and masks .................................................................................................................. 26
Character sets ............................................................................................................................................... 26
1.4.2 Data structures ........................................................................................................................................ 26
Trees ............................................................................................................................................................. 27
1.5 Legal, moral and ethical issues ....................................................................................................................... 28
1.5.1 Computing related legislation.................................................................................................................. 28
The data protection act 1998 ....................................................................................................................... 28
The computer misuse act 1990 .................................................................................................................... 29
The copyright, design and patents act 1988 ................................................................................................. 29
The regulation of investigatory powers act 2000 ......................................................................................... 29
1.5.2 moral and ethical issues .......................................................................................................................... 29
Computers in the workforce ......................................................................................................................... 29
Automated decision making ......................................................................................................................... 29
Censorship and the internet ......................................................................................................................... 30
Analyse Personal Information ...................................................................................................................... 30
Privary and offensive communications ........................................................................................................ 31
Layout, Colour Paradigms and Character sets .............................................................................................. 31
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