{"id":11,"date":"2019-09-03T13:15:42","date_gmt":"2019-09-03T13:15:42","guid":{"rendered":"http:\/\/learnlearn.uk\/alevelcs\/?page_id=11"},"modified":"2020-04-10T07:21:34","modified_gmt":"2020-04-10T07:21:34","slug":"as-level","status":"publish","type":"page","link":"https:\/\/learnlearn.uk\/alevelcs\/as-level\/","title":{"rendered":"CIE A-Level Computer Science (9608)"},"content":{"rendered":"<div class=\"responsive-tabs\">\n<h2 class=\"tabtitle\">1.1<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit 1.1 &#8211; Information Representation<\/h2>\n<h3>1.1.1 Data Representation<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/binary-denary-hexadecimal-number-bases\/\">Binary, Denary and Hexadecimal Number Bases<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/binary-decimal-prefixes\/\">Binary and Decimal Prefixes<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/ones-twos-compliment\/\">One&#8217;s Compliment and Two&#8217;s Compliment<\/a><\/li>\n<li>Binary Addition and Subtraction<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/binary-coded-decimal\/\">Binary Coded Decimal<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/ascii-extended-ascii-unicode\/\">ASCII, Extended ASCII and Unicode<\/a><\/li>\n<\/ul>\n<h3>1.1.2 Multimedia \u2013 Graphics, Sound<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/bitmap-images\/\">Bitmap Images<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/vector-images\/\">Vector Images<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/vector-images\/\">Bitmaps vs Vectors<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/encoding-sound\/\">Encoding Sound<\/a><\/li>\n<\/ul>\n<h3>1.1.3 Compression<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/media-compression\/\">The need for compression<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/media-compression\/\">Lossy vs Lossless encoding<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/media-compression\/\">How compression works for different media types<\/a><\/li>\n<\/ul>\n\n<\/div><h2 class=\"tabtitle\">1.2<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit 1.2 &#8211; Communication<\/h2>\n<h3>1.2.1 Networks including the internet<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/lan-vs-wan\/\">LAN vs WAN<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/client-server-vs-peer-peer\/\">Client-Server vs Peer to Peer<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/thin-thick-clients\/\">Thin and Thick Clients<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/wired-wireless-networks\/\">Wired and Wireless Networks<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/network-hardware\/\">Network Hardware<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/bit-streaming\/\">Bit Streaming<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/world-wide-web-internet\/\">WWW and the Internet<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/world-wide-web-internet\/\">Internet Hardware<\/a><\/li>\n<\/ul>\n<h3>1.2.2 IP Addressing<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/ip-addresses\/\">IP Addresses<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/ip-addresses\/\">Public vs Private IP Addresses<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/ip-addresses\/\">Static Vs Dynamic IP<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/urls-and-dns\/\">URLs &amp; DNS<\/a><\/li>\n<\/ul>\n<h3>1.2.3 Client &amp; Server Side Scripting<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/client-server-side-scripting\/\">How simple web pages are served<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/client-server-side-scripting\/\">Client Side Scripting<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/client-server-side-scripting\/\">Server Side Scripting<\/a><\/li>\n<\/ul>\n\n<\/div><h2 class=\"tabtitle\">1.3<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit 1.3 &#8211; Hardware<\/h2>\n<h3>1.3.1 Computers and their components<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/input-devices\/\">Input Devices<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/output-devices\/\">Output Devices<\/a><\/li>\n<li>Primary Storage<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/secondary-storage-devices\/\">Secondary Storage Devices<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/embedded-systems\/\">Embedded Systems<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/virtual-reality-augmented-reality\/\">Virtual and Augmented Reality<\/a><\/li>\n<li>Buffers<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/ram-rom\/\">RAM and ROM<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/sram-vs-dram\/\">SRAM vs DRAM<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>1.3.2 Logic Gates and Logic Circuits<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/logic-gates\/\">Logic Gates<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/logic-gates\/\">Logic Circuits<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/logic-gates\/\">Truth Tables<\/a><\/li>\n<\/ul>\n\n<\/div><h2 class=\"tabtitle\">1.4<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit 1.4 &#8211; Processor Fundamentals<\/h2>\n<h3>1.4.1 Central Processing Unit (CPU) Architecture<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/von-neumann-architecture\/\">VON Neumann Architecture<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/von-neumann-architecture\/\">Registers<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/von-neumann-architecture\/\">ALU,CU,IAS, System Clock<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/von-neumann-architecture\/\">Busses<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/the-cpu\/\">CPU Performance Factors<\/a><\/li>\n<li>Motherboard Ports<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/fetch-execute-cycle\/\">Fetch\u00a0 &#8211; Execute Cycle<\/a><\/li>\n<li>Interrupts<\/li>\n<\/ul>\n<h3>1.4.2 Assembly Language<\/h3>\n<ul>\n<li>Assembly Language Vs Machine Code<\/li>\n<li>Assembly Process Stages<\/li>\n<li>Grouping Instruction Sets<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/modes-of-addressing\/\">Modes of addressing<\/a><\/li>\n<\/ul>\n<h3>1.4.3 Bit manipulation<\/h3>\n<ul>\n<li>Binary Shifts<\/li>\n<li>Bit Manipulation<\/li>\n<\/ul>\n\n<\/div><h2 class=\"tabtitle\">1.5<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit 1.5 &#8211; System Software<\/h2>\n<h3>1.5.1 Operating System<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/purpose-operating-system\/\">Purpose of an Operating System<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/purpose-operating-system\/\">Management tasks<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/utility-software\/\">Utility Software<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/library-programs\/\">Program Libraries<\/a><\/li>\n<\/ul>\n<h3>1.5.2 Language Translators<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/assembler-software\/\">Assembler Software<\/a><\/li>\n<li>Compilers<\/li>\n<li>Interpreters<\/li>\n<\/ul>\n\n<\/div><h2 class=\"tabtitle\">1.6<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit 1.6\u00a0&#8211; Security, privacy and data integrity<\/h2>\n<h3>1.6.1 Data Security<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/security-privacy-integrity-data\/\">Security, Privacy and Integrity<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/security-privacy-integrity-data\/\">Data and System Security<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/computer-network-threats\/\">Computer &amp; Network Threats<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/threat-reduction-measures\/\">Security \/ Threat reduction measures<\/a><\/li>\n<\/ul>\n<h3>1.6.2 Data Integrity<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/validation-and-verification\/\">Methods of data validation<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/validation-and-verification\/\">Methods of data verification<\/a><\/li>\n<\/ul>\n\n<\/div><h2 class=\"tabtitle\">1.7<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit 1.7 &#8211; Ethics and Ownership<\/h2>\n<h3>1.7.1 Ethics and Ownership<\/h3>\n<ul>\n<li>Need for ethics and purpose<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/copyright-legislation\/\">Copyright legislation<\/a><\/li>\n<li>Software Licences<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/ethical-implications-artificial-intelligence\/\">Ethical implications of artificial intelligence<\/a><\/li>\n<\/ul>\n\n<\/div><h2 class=\"tabtitle\">1.8<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit 1.8 &#8211; Databases<\/h2>\n<h3>1.8.1 Database Concepts<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/limitations-file-based-systems\/\">Limitations of file based systems<\/a><\/li>\n<li>Features of a relational database<\/li>\n<li>Relational database model<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/entity-relationship-diagrams\/\">Entity relationship diagram<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/1st-2nd-3rd-normal-form\/\">Normalisation process<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/1st-2nd-3rd-normal-form\/\">First, Second, Third Normal Form<\/a><\/li>\n<\/ul>\n<h3>1.8.2 Database Management System (DBMS)<\/h3>\n<ul>\n<li>Features of a database management system<\/li>\n<li>DBMS Software Tools<\/li>\n<\/ul>\n<h3>1.8.3 Data Definition Language (DDL) and Data Manipulation<br \/>\nLanguage (DML)<\/h3>\n<ul>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/database-definition-language\/\">Role of Data Definition Language<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/database-manipulation-language\/\">Role of Data Manipulation Language<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/database-definition-language\/\">SQL Language<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/database-definition-language\/\">SQL DDL Queries<\/a><\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/database-manipulation-language\/\">SQL DML Queries<\/a><\/li>\n<\/ul>\n\n<\/div><h2 class=\"tabtitle\">2.1<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit\u00a0 2.1 &#8211;\u00a0Algorithm Design and Problem-Solving<\/h2>\n<h3>2.1.1 Algorithms<\/h3>\n<ul>\n<li>Computational thinking:\n<ul>\n<li>Abstraction, Decomposition, Sequencing<\/li>\n<\/ul>\n<\/li>\n<li>Algorithms<\/li>\n<li>Identifier names and tables<\/li>\n<li>Pseudo-code<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/stepwise-refinement\/\">Step-wise refinement<\/a><\/li>\n<li>Logic statements<\/li>\n<\/ul>\n<h3>2.1.2 Structure Chart<\/h3>\n<p><a href=\"https:\/\/learnlearn.uk\/alevelcs\/structure-charts\/\">Structure Charts<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3>2.1.3 Corrective Maintenance<\/h3>\n<p>&nbsp;<\/p>\n<h3>2.1.4 Adaptive Maintenance<\/h3>\n<p>&nbsp;<\/p>\n\n<\/div><h2 class=\"tabtitle\">2.2<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit 2.2 &#8211; Data Representation<\/h2>\n<h3>2.2.1 Data Types<\/h3>\n<ul>\n<li>Selection of data types<\/li>\n<li>Record Structures<\/li>\n<\/ul>\n<h3>2.2.2 Arrays<\/h3>\n<ul>\n<li>1 Dimensional Arrays<\/li>\n<li>2 Dimensional Arrays<\/li>\n<li>Linear Search and Bubble Sort Algorithms<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/array-lower-upper-bounds-slicing\/\">Lower and Upper Bounds<\/a><\/li>\n<\/ul>\n<h3>2.2.3 Files<\/h3>\n<ul>\n<li>Read and writing read files<\/li>\n<\/ul>\n<h3>2.2.4 Introduction to Abstract Data Types (ADT)<\/h3>\n<ul>\n<li>Introduction to abstract data types<\/li>\n<li><a href=\"https:\/\/learnlearn.uk\/alevelcs\/stack-queues-linked-lists\/\">Stack, Queue and Linked List<\/a><\/li>\n<\/ul>\n\n<\/div><h2 class=\"tabtitle\">2.3<\/h2>\n<div class=\"tabcontent\">\n\n<h2>Unit 2.3 &#8211; Programming<\/h2>\n<h3>2.3.1 Programming Basics<\/h3>\n<ul>\n<li>Writing Pseudocode<\/li>\n<\/ul>\n<h3>2.3.2 Transferable skills<\/h3>\n<h3>2.3.3 Selection<\/h3>\n<h3>2.3.4 Iteration<\/h3>\n<h3>2.3.5 Built in functions<\/h3>\n<h3>2.3.6 Structured Programming<\/h3>\n<ul>\n<li>Procedures<\/li>\n<li>Functions<\/li>\n<li>Input Parameters<\/li>\n<li>Efficient code<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n\n<\/div><h2 class=\"tabtitle\">2.4<\/h2>\n<div class=\"tabcontent\">\n\n<h2>2.4 &#8211; Software Development<\/h2>\n<h3>2.4.1 Programming<\/h3>\n<p><a href=\"http:\/\/learnlearn.uk\/alevelcs\/integrated-development-environments\/\">Integrated Development Environments<\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>2.4.2 Program Testing<\/h3>\n<p><a href=\"https:\/\/learnlearn.uk\/alevelcs\/syntax-runtime-logical-errors\/\">Syntax, Runtime &amp; Logical Errors<\/a><\/p>\n<h3>2.4.3 Testing Strategies<\/h3>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n\n<\/div><h2 class=\"tabtitle\">Syllabus<\/h2>\n<div class=\"tabcontent\">\n\n<p><a href=\"https:\/\/www.cambridgeinternational.org\/Images\/415023-2020-syllabus.pdf\">June 2020 AS Level Syllabus<\/a><\/p>\n\n<\/div><h2 class=\"tabtitle\">Past Papers<\/h2>\n<div class=\"tabcontent\">\n\n<p><a href=\"https:\/\/pastpapers.papacambridge.com\/?dir=Cambridge%20International%20Examinations%20%28CIE%29\/AS%20and%20A%20Level\/Computer%20Science%20-%209608\">Past Papers &amp; Mark Schemes<\/a><\/p>\n<\/div><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Unit 1.1 &#8211; Information Representation 1.1.1 Data Representation Binary, Denary and Hexadecimal Number Bases Binary and Decimal Prefixes One&#8217;s Compliment and Two&#8217;s Compliment Binary Addition and Subtraction Binary Coded Decimal ASCII, Extended ASCII and Unicode 1.1.2 Multimedia \u2013 Graphics, Sound Bitmap Images Vector Images Bitmaps vs Vectors Encoding Sound 1.1.3 Compression The need for compression&hellip;&nbsp;<a href=\"https:\/\/learnlearn.uk\/alevelcs\/as-level\/\" class=\"\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">CIE A-Level Computer Science (9608)<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"neve_meta_sidebar":"full-width","neve_meta_container":"","neve_meta_enable_content_width":"on","neve_meta_content_width":100,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CIE A-Level Computer Science (9608) - A Level Computer Science<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/learnlearn.uk\/alevelcs\/as-level\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CIE A-Level Computer Science (9608) - A Level Computer Science\" \/>\n<meta property=\"og:description\" content=\"Unit 1.1 &#8211; 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