Computers

Lab Computer

All TSG-supported research labs have been equipped with a Dell Precision T-series computer. You can find the exact type of your lab computer printed on the front of the case. The current models are the 3640 and 5820, of which you can view the simplified specifications below. Consult a member of the TSG if you are not sure which computer you have been using for your past research.


	Dell Precision 3640	Dell Precision 5820
CPU	Corei5-10600 (6C, 12T, 4.1Ghz)	Intel Core i9-10900X (10C, 20T, 3.7Ghz)
Memory size	32GB	32GB
Graphics Card	Intel Graphics UHD 630	in consultation

Software

Keyboard


	Corsair Vengeance K70
Keyboard Layout	US-International QWERTY
Key Switches	Cherry MX Red
Actuation Force	45cN
Polling Rate	1000Hz
Chassis	Black anodized aluminum
USB Pass-through	Yes (USB 2.0)
Multimedia Controls	Yes
Backlight	Yes, can be switched on/off per key. Red
Win Lock	Yes
Test Results
Button response time	1ms

Please see our keyboard page for detailed information about using the keyboard backlight for experiments.

Keyboard Layout

The keyboard mapping in Windows is set to United States-International. Installed languages are Dutch and English, the default is Dutch. To switch between languages or keyboard mappings, click the 'language and keyboard' icon in the tray and choose the option that you prefer.

NOTE: one thing you should keep in mind is the fact that, when you change the active keyboard input language, this is done for the application which is currently opened. If you open another application, the input language used is the default one and you will have to switch it again.

Special characters: press " followed by a, e, i, o, or u to get ä, ë, ï, ö, ü
Press ' followed by a, e, i, o, or u to get á, é, í, ó, ú.
Press ` followed by a, e, i, o, or u to get à, è, ì, ò, ù.
Press ^ followed by a, e, i, o, or u to get â, ê, î, ô, û.
Press ' followed by c to get ç.
Press ~ followed by n to get ñ.
Pressing ", ', `, ^ or ~ followed by spacebar will result in a single ", ', `, ^ or ~. Most likely, you can just continue typing: if the next character doesn't exist with an accent character, ", ', `, ^ or ~ will preceed the next character; for example pressing ' followed by s will result in the expected 's.

Press and hold AltGr (right Alt on our lab keyboard), then press s, and you will get ß as result.

Tip: if you think it is annoying that a single press on ' or " does not result in the character, think that you probably also need a ' or a " at the end of a string. Then, press ', or " twice to get double quotationmarks. Then use the left arrow to move the carret between the quotation marks and type the string between the quotation marks.

Mouse

Labs are equipped with a Logitech G203 mouse as standard. Other models (G500S, G700S) are available on request.


	Logitech G500S	Logitech G700S	Logitech G203
Features
Handedness	Right	Right	Ambidextrous
Weight (g)	121	153	85
Connection
Wireless	No	Yes (Wire optional)	No
Cable Length / Wireless Range (m)	2.0	10.0	2.1
Interface	USB 2.0	2.4GHz RF, USB 2.0	USB 2.0
Tracking
Tracking Technology	Laser	Laser	Laser
Resolution	200 - 8200 dpi (127-3.1 μm)	200 - 8200 dpi (127-3.1 μm)	200 - 8000 dpi
Image Processing (Mpix/s)	12	12
Max. Acceleration (g)	30	30	>25
Max. Velocity (m/s)	4.19	4.19	>5
Responsiveness
USB Data Format (bits/axis)	16	16	16
Polling Rate (Hz)	1000	1000	1000
Sleep Mode	Disabled	Disabled	Disabled
Glide
Coefficient of Friction, Dynamic (μ)	0.09	0.09
Coefficient of Friction, Static (μ)	0.14	0.09
Max. Tuning Weight (g)	27	27

Mouse Sensitivity

The sensitivity of the Logitech mice can be changed by pressing the DPI button(s), located below the scroll wheel (G203) or next to the left mouse button (G500s/G700s). A window should pop up on screen telling you the current DPI level (dots per inch). If you want to set the sensitivity at a custom value or wish to prevent participants from changing the sensitivity level (accidentally or otherwise), please consult the TSG.