WhatPulse is designed for those curious about how much actual PC work is done by logging exactly what you are doing while working.

WhatPulse measures your keyboard/mouse usage, downloads/uploads, and uptime. It compiles the statistics and allows you to transmit them to the website so you can analyze your computing life, compete against or with your friends, and compare your statistics to other people. It can provide you with a keystroke by keystroke tally of, most frequently used apps and which apps utilize the greatest amount of bandwidth.

WhatPulse works by tracking pressed keys, mouse clicks, used bandwidth, and the uptime of your system. The latest versions of WhatPulse included some anti-cheat measures, including 50 keys per second maximum. Unlike keyloggers, WhatPulse does not actually record the order in which keys are pressed but instead counts the number of times keys are pressed.

WhatPulse Features:

Count Keys & Clicks

History of Keys & Clicks per Day

Keyboard & Mouse Heat Maps

Per Application Keys & Clicks

Count Network Traffic

Real-Time Network Traffic Chart

History of Network Traffic per Day

Count Uptime

Count Uptime per Application

Similar:

How to Find Your System Up Time in Windows

How to Show Your Internet Upload, Download, and Usage on the Taskbar

Limitations:
Requires an account to use and even to obtain the price. The freeware version includes all the features listed above. The premium includes those as well as features listed below:

Data Visualisation (charts)

Unlimited Data & Pulse Retention

Share Keyboard & Mouse Heat Maps Online

Per Application Keyboard & Clicks Heat Map

Detailed Keyboard & Mouse History

Export Keyboard & Mouse History to CSV

Per Application Network Traffic

Per Protocol Network Traffic

Per Country Network Traffic

Export Network Traffic History to CSV