Input devices such as keyboards, mice, presenters or barcode scanners are indispensable for interacting with computers and other electronic devices. Keyboards are available in many different designs, from wired to wireless models and special gaming keyboards. Mice also come in many styles, including wireless and ergonomic models. Presenters and barcode scanners are specially designed for specific applications and facilitate work in different environments, from offices to warehouses and retail shops. Choosing the right input device depends on individual needs and requirements. It is important to carefully consider what functions and features the desired input device should have to ensure optimal performance and ease of use.

Interesting facts from the field of input devices

Document scanner

The IRIScan document scanner is a line of portable document scanners developed by the IRIS company. These scanners allow users to digitise documents, images and other originals quickly and easily.

Some of the key features of the IRIScan document scanner are:

  • Portability: the scanners are lightweight and compact, making them ideal for use on the go. They can easily be carried in a bag or backpack.
  • Scan quality: The IRIScan scanners offer good scan quality and can capture both black and white and colour documents. They also support the creation of searchable PDF files.
  • Automatic Document Feeder (ADF): Some models have an automatic document feeder that makes it easy to scan multi-page documents. This enables fast scanning without having to place each sheet individually.
  • Wireless connectivity: Many of the IRIScan scanners support wireless connections such as Wi-Fi or Bluetooth, allowing users to send their scanned documents directly to mobile devices or computers.
  • OCR software: The scanners often come with Optical Character Recognition (OCR) software that can convert scanned text into editable digital files. This allows text to be copied and pasted or the scanned content to be edited.

There are different models and variants of the IRIScan document scanner, offering different features and specifications. Call us, we will be happy to advise you!

Document scanner

Barcode scanner

A barcode scanner is an electronic device designed to read and interpret barcodes. Barcodes are machine-readable codes consisting of a series of black and white stripes found on various products, packaging or labels. They are used to store and transmit information such as product codes, prices and stock levels.

Here is some important information about barcode scanners:

  • Types of barcode scanners: there are different types of barcode scanners, including pen scanners, laser scanners, CCD (Charged Coupled Device) scanners and imager scanners. Each type has its own modes of operation and applications.
  • Mode of operation: Barcode scanners use a light source (e.g. LED or laser) to illuminate the barcode and a sensor to detect the reflected light intensity. By interpreting the different light and dark areas of the barcode, the scanners can read the information it contains.
  • Barcode types: There are different types of barcodes, including linear barcodes such as the EAN-13 (European Article Number) code and the UPC (Universal Product Code) code, as well as 2D barcodes such as the QR (Quick Response) code. Barcode scanners can usually read multiple barcode types, but some specialised scanners specialise in specific barcode types.
  • Areas of application: Barcode scanners are used in a variety of areas including retail, logistics, warehousing, healthcare, libraries and more. They enable fast and accurate product data capture, inventory tracking and pricing.
  • Wired vs. wireless: Barcode scanners are available in wired and wireless versions. Wired scanners connect to the computer or POS system via USB, RS-232 or PS/2 ports. Wireless scanners use wireless technologies such as Bluetooth or WLAN to connect to a receiving device.
  • Integration and software: Barcode scanners can be integrated into various software and system environments. They often work with point-of-sale (POS) systems, warehouse management systems and other enterprise applications. The scanners deliver the scanned data as keyboard input or via special interfaces to the connected systems.

There are a variety of barcode scanner models on the market that differ in functionality, range, durability and price. The selection of a barcode scanner depends on the specific requirements and intended use. Give us a call, we will be happy to advise you!



Keyboards are one of the most important input devices for computers and allow you to enter text, commands and other characters into the computer. Here is some information about computer keyboards:

  • Key layout: most computer keyboards follow the QWERTY key layout, which is named after the first six letters of the top row of letters. However, there are alternative key layouts such as the AZERTY layout (used in some European countries) or the QWERTZ layout (used in Germany and some other countries).
  • Alphanumeric keys: Computer keyboards contain a series of alphanumeric keys that represent letters, numbers and special characters. These keys include the entire alphabet, the digits 0-9 and special characters such as punctuation marks, symbols and punctuation marks.
  • Function keys: Keyboards usually have a number of function keys (F1 to F12) assigned to different functions. These function keys are often used by software programmes to perform special commands or actions.
  • Modifier keys: There are special keys such as Shift, Alt and Ctrl (Control) that function as modifier keys. Pressing a modifier key in combination with another key can produce different functions or characters. For example, the combination of Ctrl+C creates a copy of the selected text.
  • Additional keys: Modern keyboards often include additional keys, such as a Windows key to open the Start menu, or special multimedia keys to control audio and video playback or volume.
  • Wired vs. wireless: Keyboards are available in both wired and wireless versions. Wired keyboards use a physical connection such as USB or PS/2, while wireless keyboards connect to the computer via wireless technologies such as Bluetooth or a USB radio receiver.
  • Mechanical vs. membrane keyboards: Keyboards can use either mechanical or membrane switches. Mechanical keyboards have individual mechanical switches under each key that provide tactile feedback and an audible click. Membrane keyboards use a rubber membrane with conductive traces to detect keystrokes and are usually quieter and flatter.
  • Gaming keyboards: For gamers, there are special gaming keyboards that offer additional features such as programmable macro keys, backlighting, anti-ghosting and special gaming modes to enhance the gaming experience.

This information provides a basic overview of computer keyboards. There are many different keyboard models on the market, varying in design, ergonomics, features and prices. Choosing a keyboard depends on individual preferences, requirements and intended use. Give us a call, we will be happy to advise you!

Keyboards wired, German

Keyboards wireless, German

Keyboard-mouse combinations, German

Mice, wired

Mice, wireless

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