Hardware

Servers (Dell, IBM, Compaq, HP, Total Peripherals, Macintosh)
Desktops (Dell, IBM, Macintosh, Compaq, Digital, NEC, Epson, HP)
Notebooks (Dell, IBM, Acer, Compaq, Digital, NEC, Epson, HP, Macintosh)
Peripherals (Scanners (HP), Printers (wide range), Modems (numerous), Plotters (HP, Epson), WLan)
Network (Cisco, Intel, 3Com)

Software

OS (MS DOS (2.0 to 6.2), MS Windows (1.0 to 3.1), MS NT (3.51, 4.0, 5.0 [Win2k, XP, Win2k3]) 6 [Win2k8], Netware (2.15 to 5.0)
Backoffice (SQL Server (7.0, 2k), Site-Server (2.0), MS Terminal Server, IIS (4.0 to 6.0), MS Sharepoint, Citrix Metaframe (1.8, Xpe, Farm), Project Server, Sharepoint Portal and Team Services, MS SBS
Productivity (MS Office (4.3 to 2010), Lotus Smartsuite, MS Project (97 to 2010))
Commercial (SAP, Epicor (Platinum), Quantum Treasury, ANZ and Westpac Transaction products, Bloomberg, Bridge, AccPac Suite)
Helpdesk (Helpweb, Compass (Compaq), Trackit)
Email (Exchange (4.0 to 2000), Outlook (97 to 2010), cc:Mail, Lotus Notes (4.0))
Document Management (RecFind, Aurora Library Management)
Utilities (Backup (Backup Exec, Arcserve), Antivirus (McAfee, Trend, Norton, Norman, Sophos), Management (DMS, SMS, DMI)
Development (VBScript, html, Kixtart, asp, Java, VBA, Javascript, T-SQL, Visual Basic (3.0 to 6.0), Interdev, Director, C#.Net)
Virtualisation (ESX 3.5, 4.0)
Email Management (EMC SourceOne)
Deduplication (EMC Avamar)
SAN Management (EMC Navisphere, Replication Manager)

Network

Miscellaneous

radio communication (HF, VHF, UHF, Microwave, Satellite)
aircraft navigational aid systems (NDB, DME, VOR, ILS)
control facilities (voice and equipment switching systems, telephony, telemetry, telex, data communication)
test equipment (CRO, specialised RF-phase analysis, audio & RF signal generation, digital signal analysis)
voice communication (PABX, VoIP, IVR)

IT Considerations "Inductions, abductions and deductions with respect to Information Technology"