Hardware requirements for running C21

Installation issues of 21st Century Accounting software.

Hardware requirements for running C21

Postby Customer Service » February 1st, 2012, 7:51 pm

21st Century Accounting follows the recommendation for all Windows users: when you buy computer hardware, get as much computing power as you can afford, especially as much memory as possible.

21st Century Accounting itself has a relatively small "footprint" in terms of disk space and memory requirements, but the Windows support for any application is memory-intensive. The more memory your computer has, the more satisfied you will be with the performance of all your applications, including Payroll for Adagio.

Networking performance also profits from additional memory on the computer you use as your Server.


If you already have C21
If you already have C21, and are purchasing a new computer, then be aware that the following information is for version 11 of Pervasive PSQL, the database engine used by the 21st Century Accounting. If you have a different version, check with us about hardware requirements.

Workgroup Edition
    Minimum hardware requirement:
      CPU: Pentium III, 500 MHz or better Intel-compatible processor
      RAM: 335 MB
      Disk space: 500 MB
      CD-ROM drive
      Internet access required for product activation

    Supported Operating systems:
      Windows 8 (not RT)
      Windows 7
      Windows Server 2008 R2 SP1 64-bit
      Windows Server 2008
      Windows Small Business Server 2011
      Windows Small Business Server 2008
      Windows Server 2003
      Windows Vista
      Windows XP (with Service Pack 3)
      Windows 10 - Must have PSQL version 12 or higher
      Windows Server 2016 - Must have PSQL version 12 or higher

Client/Server Edition, SERVER computer
    Minimum Hardware Requirement:
      Windows 32-bit :
        Pentium 4, 1.1GHz
        RAM: 1 GB
        Disk Space: 500 MB
      Windows 64-bit
        CPU: Athlon64, Opteron, Xeon, other Intel EM64T
        RAM: 2 GB
        Disk Space: 500 MB
      CD-ROM drive
      Internet access required for product activation
    Supported Operating Systems:
      Windows 8 (not RT)
      Windows 7 (not Home Premium)
      Windows Server 2008 R2 SP1 64-bit
      Windows Server 2008
      Windows Small Business Server 2011
      Windows Small Business Server 2008
      Windows Server 2003
      Windows Vista (not Home)
      Windows 10 - Must have PSQL version 12 or higher
      Windows Server 2016 - Must have PSQL version 12 or higher

Client/Server Edition: CLIENT computer
    Minimum Hardware Requirement:
      Windows 64-bit
        CPU: Athlon64, Opteron, Xeon, other Intel EM64T
        RAM: 1 GB
        Disk Space: 500 MB
      Windows 32-bit
        Pentium III, 500 MHz
        RAM: 128MB
        Disk Space: 250 MB
      CD-ROM drive
      Internet access recommended
    Supported Operating Systems:
      Windows 8 (not RT)
      Windows 7
      Windows Server 2008 R2 SP1 64-bit
      Windows Server 2008
      Windows Small Business Server 2011
      Windows Small Business Server 2008
      Windows Server 2003
      Windows Vista
      Windows XP
      Windows 10 - Must have PSQL version 12 or higher
      Windows Server 2016 - Must have PSQL version 12 or higher
Customer Service
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