Do Some personal computers have external tape units?
All computers need some sort of operating system.
yes they do read disk. some require an external drive.
Yes. Some very old personal computers did not have them, but all modern ones do.
no it is not..
Generally speaking, Microsoft created the Windows Operating System, and computers that use Windows as their OS are considered PCs or Personal Computers. The term: "PC" was coined by IBM when they created the "Personal Computer". PC now relates to Intel-based computers and Microsoft happens to be the main Operating System provider that is Intel-based.
Yes. Notebook and tablet computers generally belong to two different categories of personal computing devices: those with a keyboard and without a touchscreen (notebook), and those without a keyboard but with a touchscreen (tablet). However, hybrid solutions are available. External keyboards can be connected to a tablet computer (such as an iPad), and some notebook or laptop computers feature touch-sensitive displays.
Depends what your interpretation of Personal Computers. In majority of cases PC's are referred to as running Windows, Linux etc, where as running Mac-Os is done on a Mac However Mac-OS can be put on non native "Macs" with some configuration.
Common types of DIMM Memory Modules used in computers are a 168 pin SDRAM Module, or a 184 pin DDR SDRAM. These boards are designed to be used in personal computers.
In some forms of outsourcing, a company hires an external vendor to create the software for its system, but operates the software on its own computers.
There are a number of tools used in RFID Asset tracking. Good tools include personal computers and laptops, tablet computers, smartphones and GPS devices.
Some portable AC units that do not require a hose for ventilation are the Evapolar Personal Air Cooler, the Zero Breeze Mark 2, and the Coolala Portable AC.
networked computers are just normal personal computers connect together businesses usually connect them in a network to fill business needs e.g. to provide Internet or to monitor productivity... so to answer you question most big business will have this and a fair few smaller business will have this setup or will have. The limitations is that in companies the regular users can not add programs and they do not have admin control, so they need their own computers to do some functions and the networked computers are highly monitered, so they may want privacy.