4. Has a rigid cell wall made of peptidoglycan (except for the mycoplasma). This cell wall is thick in Gram-positive bacteria and thin in Gram-negative bacteria. It is the thickness of the peptidoglycan that accounts for the ability/lack of ability to retain the crystal violet used in the Gram stain.
Computer hardware is the physical parts or components of a computer, such as the monitor, mouse, keyboard, computer data storage, hard disk drive (HDD), graphic cards, sound cards, memory, motherboard, and so on, all of which are physical objects that are tangible.
Computer Parts Labeling Worksheet See how many of the parts of the computer you can label using the following key words. Monitor screen speakers CPU CD ROM mouse keyboard Space bar power button disk drive URL Internet 5. 1. 2. 3. 4. 6. 7. 8. 9. 11. 10. 12.he data that is entered into a computer. Examples of devices are a keyboard, mouse, touch screen, and scanner. A computer input device that uses a set of keys to put data into the computer. The computer-generated information that is displayed. Examples of devices are monitor, printer, speakers, and projector.