Array
(
    [0] => Array
        (
            [title] => About Mister Spectrum
            [description] => Learn about Mister Spectrum, a historical reference and research project dedicated to the Sinclair ZX Spectrum and its programming, hardware and history.
            [keywords] => about Mister Spectrum, ZX Spectrum, Sinclair Spectrum, ZX Spectrum BASIC, ZX Spectrum history, programming, peripherals, retro computing
            [category] => Site Information
            [url] => /pages/about.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [1] => Array
        (
            [title] => Acorn Atom vs ZX Spectrum BASIC Keyword Comparison
            [description] => Compare and convert BASIC keywords between the Acorn Atom and ZX Spectrum. A side-by-side reference for retro programmers working across both 8-bit systems.
            [keywords] => Acorn Atom BASIC, ZX Spectrum BASIC, BASIC keyword comparison, convert BASIC programs, 8-bit BASIC compatibility, retro computing
            [category] => Language Translation
            [url] => /pages/AtomBASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [2] => Array
        (
            [title] => BBC BASIC vs ZX Spectrum BASIC | Keyword Comparison
            [description] => A detailed comparison of BBC BASIC and ZX Spectrum BASIC keywords, syntax and programming differences. A reference for converting and understanding 8-bit BASIC dialects.
            [keywords] => BBC BASIC vs ZX Spectrum BASIC, BBC BASIC keywords, ZX Spectrum BASIC comparison, 8-bit BASIC differences, retro computing programming
            [category] => Language Translation
            [url] => /pages/BBCBASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [3] => Array
        (
            [title] => Comparison of BASIC Keywords – ZX Spectrum vs Non‑Sinclair Microcomputers
            [description] => Compare BASIC keywords and commands of the ZX Spectrum with those of other non‑Sinclair microcomputers, including the Commodore 64, Acorn Atom, BBC Micro/Electron, Dragon, Oric, and Camputers Lynx.
            [keywords] => ZX Spectrum BASIC, non‑Sinclair BASIC, BASIC keyword comparison, Commodore 64 BASIC, C64 BASIC, Acorn Atom BASIC, BBC Micro BASIC, Oric BASIC, Dragon 32 BASIC, Camputers Lynx BASIC, programming reference
            [category] => Menus
            [url] => /pages/NonSinclairKeywords.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [4] => Array
        (
            [title] => Dragon & TRS-80 CoCo BASIC vs ZX Spectrum BASIC | Keyword Comparison
            [description] => Compare Dragon 32/64 and TRS-80 Color Computer BASIC with ZX Spectrum BASIC. A cross-platform keyword and syntax reference for 8-bit programmers.
            [keywords] => Dragon BASIC, TRS-80 Color Computer BASIC, CoCo BASIC, ZX Spectrum BASIC comparison, 8-bit BASIC differences, retro computing programming
            [category] => Language Translation
            [url] => /pages/DRAGONBASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [5] => Array
        (
            [title] => on-this-day
            [description] => 
            [keywords] => 
            [category] => Uncategorised
            [url] => /pages/on-this-day.php
            [modified] => 1788374291
            [modifiedText] => 2 September 2026
        )

    [6] => Array
        (
            [title] => QL SuperBASIC Keywords
            [description] => A detailed overview of QL SuperBASIC keywords, including examples and syntax for programming on the Sinclair QL. Compare with ZX Spectrum BASIC keywords.
            [keywords] => QL SuperBASIC, Sinclair QL, programming keywords, BASIC comparison, retro computing, QL syntax
            [category] => Language Translation
            [url] => /pages/QLSuperBASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [7] => Array
        (
            [title] => ROM Cartridge Interfaces
            [description] => ROM cartridge interfaces for the ZX Spectrum.
            [keywords] => 
            [category] => Uncategorised
            [url] => /pages/rom-cartridge-interfaces.php
            [modified] => 1787687900
            [modifiedText] => 25 August 2026
        )

    [8] => Array
        (
            [title] => Search
            [description] => Search the Mister Spectrum archive.
            [keywords] => search,zx spectrum
            [category] => Uncategorised
            [url] => /pages/search.php
            [modified] => 1788282774
            [modifiedText] => 1 September 2026
        )

    [9] => Array
        (
            [title] => search-api
            [description] => 
            [keywords] => 
            [category] => Uncategorised
            [url] => /pages/search-api.php
            [modified] => 1788283101
            [modifiedText] => 1 September 2026
        )

    [10] => Array
        (
            [title] => Terms of Use
            [description] => Mister Spectrum Terms of Use, copyright, disclaimer, privacy policy and information about cookies and tracking technologies.
            [keywords] => Mister Spectrum, Terms of Use, copyright, disclaimer, privacy policy, cookies, ZX Spectrum
            [category] => Site Information
            [url] => /pages/terms.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [11] => Array
        (
            [title] => The Amstrad Spectrum Computers
            [description] => The history and development of the Amstrad-built ZX Spectrum computers, from the ZX Spectrum +2 and +3 to the +2A and +2B, and the later revival of the Spectrum.
            [keywords] => 
            [category] => Uncategorised
            [url] => /pages/Amstrad_Spectrum.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [12] => Array
        (
            [title] => Timex Sinclair 2068 BASIC Commands and Comparison
            [description] => Guide to Timex Sinclair 2068 BASIC commands with comparison to ZX Spectrum BASIC. Syntax differences, extended commands and programming reference for TS2068 systems.
            [keywords] => Timex Sinclair 2068 BASIC, TS2068 BASIC commands, TS2068 vs ZX Spectrum BASIC, Timex Sinclair programming, Spectrum BASIC comparison, retro computing reference
            [category] => Spectrum Variants
            [url] => /pages/TS2068BASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [13] => Array
        (
            [title] => YS MegaBASIC Extended Keywords
            [description] => Complete list of YS MegaBASIC extended keywords for ZX Spectrum. These additional commands complement standard Spectrum BASIC for advanced programming.
            [keywords] => YS MegaBASIC, ZX Spectrum BASIC, extended keywords, retro computing, Spectrum programming
            [category] => Spectrum Variants
            [url] => /pages/YSMegaBASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [14] => Array
        (
            [title] => ZX Printer Simulator
            [description] => Interactive ZX Spectrum Printer simulator with a 256-dot scan engine.
            [keywords] => ZX Spectrum, ZX Printer, printer simulator, LPRINT, COPY, Sinclair
            [category] => Uncategorised
            [url] => /pages/zx-printer.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [15] => Array
        (
            [title] => ZX Spectrum +128K Extra BASIC Keywords Explained
            [description] => The extra keywords of +128K models
            [keywords] => +128K BASIC, +3 BASIC, +2, +2A, +2B, ZX Spectrum BASIC, Keywords, Operators, Delimeters, Commands, Functions
            [category] => Spectrum Variants
            [url] => /pages/128KKeywords.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [16] => Array
        (
            [title] => ZX Spectrum 16K and 48K
            [description] => A history of the original 16K and 48K ZX Spectrum, covering its development, hardware revisions, memory, display, keyboard, sound, software, peripherals and development into the ZX Spectrum+.
            [keywords] => ZX Spectrum, 16K, 48K, ZX Spectrum 16K, ZX Spectrum 48K, ZX Spectrum+, Sinclair, Spectrum history, Spectrum hardware
            [category] => Uncategorised
            [url] => /pages/spectrum-16k-48k.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [17] => Array
        (
            [title] => ZX Spectrum Attribute Explorer
            [description] => Explore ZX Spectrum colour attributes using INK, PAPER, BRIGHT and FLASH controls.
            [keywords] => ZX Spectrum, attributes, ATTR, INK, PAPER, BRIGHT, FLASH, RGB, colour
            [category] => Utilities
            [url] => /pages/attribute-explorer.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [18] => Array
        (
            [title] => ZX Spectrum Backplane, Card Frame & Modular Expansion Systems
            [description] => 
            [keywords] => 
            [category] => Uncategorised
            [url] => /pages/expansion-test.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [19] => Array
        (
            [title] => ZX Spectrum Backplane, Card Frame & Modular Expansion Systems
            [description] => A historical catalogue of ZX Spectrum backplane, card frame and modular expansion systems including Velleman, USP, MUKBUS, Gordon Microframe and Basicare products available in the 1980s.
            [keywords] => ZX Spectrum backplane, Spectrum card frame, Spectrum modular expansion, Velleman K2616, USP backplane, MUKBUS, Gordon Microframe, Basicare expansion, retro computing hardware
            [category] => Hardware
            [url] => /pages/expansion.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [20] => Array
        (
            [title] => ZX Spectrum BASIC Keywords & Commands
            [description] => Comprehensive reference of ZX Spectrum BASIC keywords, commands, statements, and comparisons with other Sinclair BASIC variants on Mister Spectrum.
            [keywords] => ZX Spectrum, BASIC keywords, Sinclair BASIC, Spectrum commands, BASIC statements, programming reference, keyword comparison
            [category] => Menus
            [url] => /pages/keywords.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [21] => Array
        (
            [title] => ZX Spectrum BASIC Tape Commands: LOAD, SAVE, VERIFY & MERGE
            [description] => Complete guide to ZX Spectrum BASIC tape commands including LOAD, SAVE, VERIFY and MERGE. Syntax explanations, examples and cassette storage programming reference.
            [keywords] => ZX Spectrum LOAD, ZX Spectrum SAVE, ZX Spectrum VERIFY, ZX Spectrum MERGE, Spectrum tape commands, ZX Spectrum cassette storage, Spectrum BASIC programming
            [category] => Language Translation
            [url] => /pages/TapeStatements.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [22] => Array
        (
            [title] => ZX Spectrum BASIC vs Camputers Lynx BASIC Comparison
            [description] => Detailed comparison of ZX Spectrum BASIC keywords and Camputers Lynx BASIC commands, highlighting differences, similarities, and usage between the two systems.
            [keywords] => ZX Spectrum BASIC, Lynx BASIC, Sinclair BASIC, Camputers Lynx, BASIC comparison, programming keywords, retro computing, Spectrum programming
            [category] => Language Translation
            [url] => /pages/LynxBASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [23] => Array
        (
            [title] => ZX Spectrum BASIC vs Oric 1 and Oric Atmos BASIC Comparison
            [description] => Detailed comparison of ZX Spectrum BASIC with Oric 1 and Oric Atmos Extended BASIC keywords and commands, highlighting similarities, differences, and programming variations between the systems.
            [keywords] => ZX Spectrum BASIC, Oric 1 BASIC, Oric Atmos BASIC, Oric Extended BASIC, BASIC keyword comparison, Sinclair BASIC vs Oric BASIC, retro computing programming reference
            [category] => Language Translation
            [url] => /pages/oricBASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [24] => Array
        (
            [title] => ZX Spectrum Display Effects Explorer
            [description] => Explore ZX Spectrum OVER, INVERSE, transparent attributes, contrast, BRIGHT and FLASH using interactive 8x8 character grids.
            [keywords] => ZX Spectrum, Display Effects, OVER, INVERSE, Transparent, Contrast, INK 8, PAPER 8, INK 9, PAPER 9, BRIGHT, FLASH
            [category] => Utilities
            [url] => /pages/display-effects-explorer.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [25] => Array
        (
            [title] => ZX Spectrum Expansion Systems (Part 2)
            [description] => A historical archive of additional ZX Spectrum expansion systems including Forth cartridges and specialist hardware products from the 1980s.
            [keywords] => ZX Spectrum expansion, Spectrum Forth cartridge, Currah μSource, Skywave Spectrum Forth, 1980s Spectrum hardware, retro computing archive
            [category] => Hardware
            [url] => /pages/expansion2.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [26] => Array
        (
            [title] => ZX Spectrum Floating-Point Number Explorer
            [description] => Explore the ZX Spectrum five-byte floating-point and short integer formats, including the famous INT -65536 behaviour.
            [keywords] => ZX Spectrum floating point, five byte floating point, short integer, INT -65536, ZX Spectrum INT bug
            [category] => Uncategorised
            [url] => /pages/floating-point.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [27] => Array
        (
            [title] => ZX Spectrum Input Devices & Controllers
            [description] => A historical overview of ZX Spectrum input devices including keyboards, joysticks, light pens, graphics tablets and specialist controllers available during the 1980s.
            [keywords] => ZX Spectrum input devices, Spectrum joystick, Spectrum light pen, Spectrum keyboard, Spectrum mouse, 1980s peripherals, retro computing hardware
            [category] => Hardware
            [url] => /pages/input_devices.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [28] => Array
        (
            [title] => ZX Spectrum Joystick Interfaces & ROM Cartridge Interfaces
            [description] => Explore our comprehensive list of ZX Spectrum joystick interfaces and ROM cartridge interfaces. Compare AGF, Kempston, Protec, and Sinclair peripherals for your Spectrum.
            [keywords] => ZX Spectrum, joystick interfaces, ROM cartridge interfaces, AGF, Kempston, Protec, Sinclair, Spectrum peripherals, retro gaming, classic computers
            [category] => Hardware
            [url] => /pages/joystickif.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [29] => Array
        (
            [title] => ZX Spectrum Keyboard Explorer
            [description] => Interactive ZX Spectrum keyboard explorer showing key legends, BASIC keywords, SYMBOL SHIFT functions and keyboard matrix information.
            [keywords] => 
            [category] => Uncategorised
            [url] => /pages/zx-keyboard.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [30] => Array
        (
            [title] => ZX Spectrum Keyboard Matrix
            [description] => Explore the ZX Spectrum 16K and 48K keyboard matrix.
            [keywords] => ZX Spectrum,keyboard,matrix,ULA,keyboard interface
            [category] => Utilities
            [url] => /pages/keyboard-matrix.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [31] => Array
        (
            [title] => ZX Spectrum Keyboards & Keyboard Accessories
            [description] => Browse our comprehensive collection of ZX Spectrum keyboards and accessories. Compare original, professional, and overlay keyboards for your Spectrum.
            [keywords] => ZX Spectrum, keyboards, keyboard accessories, replacement keyboards, professional keyboards, overlay keyboards, Spectrum peripherals, retro computing, classic computers
            [category] => Hardware
            [url] => /pages/keyboards.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [32] => Array
        (
            [title] => ZX Spectrum Memory Map Explorer
            [description] => Explore the ZX Spectrum memory layout and see how ROM, display memory, system variables, RAM, dynamic memory and hardware expansions affect the Z80 memory map.
            [keywords] => ZX Spectrum memory map, Spectrum memory, 48K memory map, 16K Spectrum, 128K Spectrum, ZX Spectrum RAM, ZX Interface 1, ZX Printer
            [category] => Utilities
            [url] => /pages/memory-map.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [33] => Array
        (
            [title] => ZX Spectrum MIDI Interfaces & MIDI Keyboards
            [description] => Discover MIDI interfaces and MIDI keyboard peripherals for the ZX Spectrum. Explore hardware and sound expansion options to connect MIDI devices with your Spectrum system.
            [keywords] => ZX Spectrum, MIDI interface, MIDI keyboards, MIDI peripherals, Spectrum MIDI hardware, retro computing, sound expansion
            [category] => Hardware
            [url] => /pages/MIDI.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [34] => Array
        (
            [title] => ZX Spectrum Peripherals Overview
            [description] => Explore a comprehensive guide to ZX Spectrum peripherals including keyboards, joystick interfaces, light pens, MIDI hardware, sound amplifiers, synthesizers, expansion systems and more.
            [keywords] => ZX Spectrum peripherals, Spectrum accessories, MIDI, light pens, joystick interfaces, keyboards, sound amplifiers, synthesizers, expansion systems, retro computing
            [category] => Menus
            [url] => /pages/peripherals.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [35] => Array
        (
            [title] => ZX Spectrum RND Generator
            [description] => A ZX Spectrum RND and RANDOMIZE calculator showing how the original Sinclair BASIC pseudo-random number generator works.
            [keywords] => ZX Spectrum, RND, RANDOMIZE, random number generator, pseudo-random, Sinclair BASIC, 65537, 75
            [category] => Utilities
            [url] => /pages/random-number.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [36] => Array
        (
            [title] => ZX Spectrum Screen Memory Calculator
            [description] => Interactive ZX Spectrum display file and attribute address calculator.
            [keywords] => ZX Spectrum, display file, screen memory, attribute memory
            [category] => Utilities
            [url] => /pages/screen-memory.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [37] => Array
        (
            [title] => ZX Spectrum Sound Amplifiers & Synthesizers
            [description] => Explore ZX Spectrum sound peripherals including sound amplifiers and sound synthesizers. Learn how these add‑ons improve beeper audio and provide multi‑channel sound through AY chips.
            [keywords] => ZX Spectrum sound, sound amplifiers, sound synthesizers, Spectrum audio peripherals, AY‑3‑8910, ZX Spectrum sound hardware, retro computing
            [category] => Hardware
            [url] => /pages/sound.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [38] => Array
        (
            [title] => ZX Spectrum Sound Simulator
            [description] => Simulate the ZX Spectrum BEEP command and ZX Spectrum 128K PLAY sound in your web browser. Convert BBC BASIC SOUND and Dragon 32/64 or TRS-80 CoCo SOUND commands to ZX Spectrum BEEP.
            [keywords] => ZX Spectrum,BEEP,PLAY,128K,AY sound,BBC BASIC SOUND,Dragon 32,Dragon 64,TRS-80 CoCo,SOUND simulator,ZX Spectrum BASIC
            [category] => Language Translation
            [url] => /pages/beep.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [39] => Array
        (
            [title] => ZX Spectrum Speech Synthesizers and Speech Recognition
            [description] => Explore ZX Spectrum speech synthesizers and speech recognition peripherals. Compare hardware add-ons that add voice output and speech capabilities to classic Spectrum systems.
            [keywords] => ZX Spectrum speech, speech synthesizer, speech recognition, Spectrum voice hardware, speech peripherals, retro computing, ZX Spectrum expansions
            [category] => Hardware
            [url] => /pages/speech.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [40] => Array
        (
            [title] => ZX Spectrum TAP Loader Simulator
            [description] => Load a ZX Spectrum TAP file and simulate the tape loading signal, oscilloscope, sound, Spectrum border and decoded loading blocks.
            [keywords] => ZX Spectrum,TAP,tape loader,LOAD,EAR,oscilloscope,tape signal,sound simulator,border
            [category] => Utilities
            [url] => /pages/tape-loader.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [41] => Array
        (
            [title] => ZX Spectrum UDG Designer
            [description] => Design ZX Spectrum User Defined Graphics with an 8x8 to 24x24 pixel grid, transformations and BASIC output.
            [keywords] => ZX Spectrum, UDG Designer, User Defined Graphics, Sinclair BASIC, UDG, 48K, 128K
            [category] => Utilities
            [url] => /pages/udg-designer.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [42] => Array
        (
            [title] => ZX Spectrum VAL$ Function Explained | String Conversion in Sinclair BASIC
            [description] => A detailed guide to the ZX Spectrum VAL$ function in Sinclair BASIC, explaining numeric to string conversion, differences from VAL, and use with DEF FN and user-defined functions.
            [keywords] => ZX Spectrum VAL$, Sinclair BASIC VAL$, ZX Spectrum string conversion, ZX Spectrum VAL function, DEF FN ZX Spectrum, ZX Spectrum BASIC programming
            [category] => Articles
            [url] => /pages/VALstring.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [43] => Array
        (
            [title] => ZX Spectrum Variable Memory Explorer
            [description] => Explore how ZX Spectrum BASIC variables are stored byte-by-byte in memory.
            [keywords] => ZX Spectrum, variables, memory, BASIC, VARS, arrays, FOR NEXT, floating point
            [category] => Uncategorised
            [url] => /pages/variable-explorer.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [44] => Array
        (
            [title] => ZX Spectrum vs Commodore 64 BASIC Keyword Comparison
            [description] => Detailed comparison of ZX Spectrum BASIC and Commodore 64 BASIC keywords and commands, highlighting similarities, differences, and programming variations between the two systems.
            [keywords] => ZX Spectrum BASIC, Commodore 64 BASIC, C64 BASIC, BASIC keyword comparison, Sinclair BASIC vs Commodore BASIC, retro computing, programming reference
            [category] => Language Translation
            [url] => /pages/C64BASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [45] => Array
        (
            [title] => ZX Spectrum+
            [description] => The history of the ZX Spectrum+, covering its redesigned case, keyboard, hardware, compatibility, documentation, official upgrade and development into the 128K Spectrum.
            [keywords] => ZX Spectrum+, Spectrum Plus, Sinclair, Sinclair Research, ZX Spectrum, Spectrum keyboard, 48K Spectrum, ZX Spectrum 128K
            [category] => Uncategorised
            [url] => /pages/spectrumplus.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [46] => Array
        (
            [title] => ZX Spectrum+ 128K
            [description] => The ZX Spectrum+ 128K, developed with Investrónica for the Spanish market, introduced 128K of RAM, AY-3-8912 sound, 128K BASIC, memory paging and new facilities while retaining compatibility with the original ZX Spectrum.
            [keywords] => ZX Spectrum+ 128K, ZX Spectrum 128K, Sinclair Spectrum 128, Investrónica, Investronica, 128K Spectrum, Toastrack, AY-3-8912, PLAY, Silicon Disc, RAM paging
            [category] => Uncategorised
            [url] => /pages/spectrum128K.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [47] => Array
        (
            [title] => ZX80 BASIC Keywords
            [description] => Complete list of ZX80 BASIC keywords with explanations. Explore the original Sinclair ZX80 BASIC and its differences from later ZX Spectrum BASIC.
            [keywords] => ZX80 BASIC, Sinclair ZX80, ZX80 keywords, retro computing, early Sinclair BASIC
            [category] => Language Translation
            [url] => /pages/ZX80BASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [48] => Array
        (
            [title] => ZX80 Subroutines to Simulate ZX Spectrum Functions
            [description] => A collection of ZX80 BASIC subroutines designed to simulate selected ZX Spectrum functions, extending the capabilities of the original Sinclair ZX80.
            [keywords] => ZX80 BASIC, ZX Spectrum simulation, ZX80 subroutines, Sinclair programming, ZX80 enhancements
            [category] => Language Translation
            [url] => /pages/ZX80spectrumconv.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

    [49] => Array
        (
            [title] => ZX81 BASIC Keywords
            [description] => Complete list of ZX81 BASIC keywords with explanations. Explore Sinclair ZX81 BASIC and its relationship to ZX80 and ZX Spectrum programming.
            [keywords] => ZX81 BASIC, Sinclair ZX81, ZX81 keywords, retro computing, Sinclair BASIC programming
            [category] => Language Translation
            [url] => /pages/ZX81BASIC.php
            [modified] => 1787254464
            [modifiedText] => 20 August 2026
        )

)