A PC or 'Desktop" computer is a machine/electronic device that receives data and outputs data after performing various sequence of operations. A personal computer consists of a monitor, keyboard, mouse, modem that includes the hard drive, processor, RAM. The first computer was invented by a German engineer who goes by the name of Konrad Zuse. Zuse used the device mainly for mathematic calculations. There are many different types of desktop/PC's to include All-in-One in which is just the monitor and modem built in one. All PCs run off an operating system which is a software that manages the file system, memory and all networking functions. Common operating systems are to include Microsoft Windows, MacOS, or Linux. The PC also has application software to make up the personality of the computer. The application software is what the users interact with to include web browsers, word processors, and music/media players.
A Laptop also called a notebook, almost like a personal computer intended to be portable, to be able to take your laptop places. A laptop is smaller than a desktop computer, the laptop folds like a folder with the upper portion consisting of a thin screen and the bottom portion included the keyboard speakers and trackpad. The size and power use limits the use of the laptops.
A tablet is type of portable PC without the use of a mouse or keyboard with touchscreen feature display maybe around 7 to 8 inches or larger that can be controlled by your finger or stylus pen. Most tablets included cameras, a microphone, and an accelerometer that track the devicesactual orientation of the screen. Some tablets may have a detached keyboard. The tablets had many disadvantages compared to the PC's and Laptops because they have less computing power and no capability or space for any upgrades. A mid-tier tablet will run you about 200-400 dollars.
The first PC was introduced to us as the MITS Altair 8800 made debut in 1975. The Altair 8800 used an Intel 8080 8-bit CPU that ran at 2 MHz the microcomputer was intended to be purchased through build it yourself kits. The kit was priced at $439, today costing $1953.92, unassembled. Assembled price was $621.00, today costing $2,763.97. Following that year in 1976 Microsoft and Apple were founded and the Apple II was introduced with its own monitor and keyboard.By the mid-2000s the growth shifted from desktops to laptops
The first laptop was introduced as the Osborne 1 in 1981. The Osborne 1 weighed 24 lbs. with a five inch screen, modem, and two floppy disk drives at a whopping $1,795. The portable PC was invented by a guy whom goes by the name of Lee Felsenstein. Battery-powered PCs (laptops) only had just 2% worldwide market share in 1986. According to Wikipedia around 109 million notebook PCs shipped worldwide in 2007, a growth of 33% compared to 2006. In 2008, it was estimated that 145.9 million notebooks were sold, and that the number would grow in 2009 to 177.7 million. The third quarter of 2008 was the first time when worldwide notebook PC shipments exceeded desktops, with 38.6 million units versus 38.5 million units.
The first real PC style tablet was brought to the market by Microsoft in 2002. This tablet used a stylus to interact with the touch-screen and ran Windows XP tablet edition, according to "thefactsite.com" due to their weight the tablet had very little success. It was manufactured by Compaq and View Sonic. Years down the road in 2010 Apple iPad took over with their 9.7 inch display, 10hr battery life and a 1GHz A4 processor.