Workbench 1.0
Workbench 2.04

These GUIs don’t have this feature.

DeskTop 1.1
GS/OS 5.0.4
GS/OS 6.0.1

These GUIs don’t have this feature.

BeOS R5.0.1 PE

Task manager in BeOS R5.0.1 PE (Team Monitor)

CDE 1.5 in Solaris 9

Task manager in CDE 1.5 in Solaris 9 (Window List)

GEOS 2 for C64
GEOS 2.1 for Apple II
GeoWorks Ensemble 2.0
NewDeal Office 3 Eval.
BreadBox Ensemble Lite

These GUIs don’t have this feature.

GNOME 2.2.0 in RedHat 9

Task manager in GNOME 2.2.0 in RedHat 9 (System Monitor)

IRIX 5.3

This feature is not yet documented on this site.

Lisa OS 1.0
Lisa OS 3.1

These GUIs don’t have this feature.

System 1.1
System 3.0
System 4.2
System 7.0
System 7.5.3
Mac OS 8.0
Mac OS 9.0

These GUIs don’t have this feature.

Mac OS X DP

Task manager in Mac OS X DP (Processes)

Task manager in Mac OS X DP (Process Listing)

Mac OS X DP 2

Task manager in Mac OS X DP 2 (Processes) with thanks to Steven Troughton-Smith

Mac OS X DP 3

This feature is not yet documented on this site.

Mac OS X DP 4

Task manager in Mac OS X DP 4 (Process Listing)

Mac OS X Public Beta

Task manager in Mac OS X Public Beta (Process Listing)

Mac OS 10.0.4

Task manager in Mac OS 10.0.4 (Process Listing)

Mac OS 10.1

Task manager in Mac OS 10.1 (Process Listing)

Mac OS X Jaguar

Task manager in Mac OS X Jaguar (Process Listing)

Mac OS X Panther

Task manager in Mac OS X Panther (Activity Monitor)

OPENSTEP 4.2

Task manager in OPENSTEP 4.2 (Processes)

Rhapsody DR2

Task manager in Rhapsody DR2 (Processes)

MS OS/2 1.30.1

Task manager in MS OS/2 1.30.1 (Task List)

OS/2 2.1

Task manager in OS/2 2.1 (Window List)

OS/2 Warp 3

Task manager in OS/2 Warp 3 (Window List)

OS/2 Warp 4

Task manager in OS/2 Warp 4 (Window List)

QNX 6.2.1 NC

Task manager in QNX 6.2.1 NC (System Process Inspector)

ArthurOS 1.2

This GUI doesn’t have this feature.

RISC OS 3.11

Task manager in RISC OS 3.11 (Tasks) This task manager incorporates an interesting feature: dragging the red bars will change the memory allocation.

RISC OS 3.7

Task manager in RISC OS 3.7 (Tasks) This task manager incorporates an interesting feature: dragging the red bars will change the memory allocation.

Sibo/Psion Series 3a
Sibo/Psion Siena

These GUIs don’t have this feature.

EPOC R5/Psion Revo

Task manager in EPOC R5/Psion Revo with thanks to Daniel Beardsmore This window can be invoked by tapping the name of the currently running application (top right corner).

EPOC R5/Psion Series 7

Task manager in EPOC R5/Psion Series 7 This window can be invoked by tapping the name of the currently running application (top right corner).

Windows 1.01
Windows 2.03

These GUIs don’t have this feature.

Windows 3.0

Task manager in Windows 3.0 (Task List)

Windows 3.1
WfW 3.11

Task manager in Windows 3.1 (Task List)

Windows NT 3.1 Workstation

Task manager in Windows NT 3.1 Workstation (Task List)

Windows NT 3.51 Workstation

Task manager in Windows NT 3.51 Workstation (Task List)

Windows 95
Windows 95B

Task manager in Windows 95 (Close Program)

Windows NT 4.0 Workstation
Windows NT 4.0 Server

Task manager in Windows NT 4.0 Workstation (Windows NT Task Manager)

Windows 98

Task manager in Windows 98 (Close Program)

Windows 98 SE

Task manager in Windows 98 SE (Close Program)

Windows 2000 Pro
Windows 2000 Advanced Server

Task manager in Windows 2000 Pro (Windows Task Manager)

Windows Me

Task manager in Windows Me (Close Program)

Whistler 2257

Task manager in Whistler 2257 (Windows Task Manager)

Windows XP Pro

Task manager in Windows XP Pro (Windows Task Manager)

Windows Server 2003 Web

This feature is not yet documented on this site.

Longhorn 4015

Task manager in Longhorn 4015 (Windows Task Manager)