Module- 01 Concepts of IT 1.What is Hardware and Ans: Hardware: The term hardware refers to the physical components of our computer that we can physically touch. Such as the system unit, mouse, keyboard, monitor etc. 2. Write the types of some computers. Mainframe, PC, Mac, Laptop, Palmtop, PDA, Notebook. Mainframe computer: Mainframe computers are the big, powerful, expensive computers used in the background by most large organizations. PC: PC means Personal Computer. A personal computer (PC) or micro-computer is any general purpose computer whose size, capabilities, and price make it useful for individuals and which is intended to be operated directly by an end user Mac: The apple Mac is a PC. It uses different operating system, and requires special versions of application programs. Laptop/Notebook & Tablet PC: are small portable computers which can run on batteries as well as mains power. Palmtop: A small computer that literally fits in your palm. Palmtops are