Difference between revisions of "Personal computer"
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A '''personal computer''' is one designed for use by a single person at a time (even though it may be running a [[time-sharing]] [[operating system]] for technical reasons). | A '''personal computer''' is one designed for use by a single person at a time (even though it may be running a [[time-sharing]] [[operating system]] for technical reasons). | ||
| − | In comtemporary parlance (where the abbreviation '''PC''' is often used), the term generally refers to either a '''desk-top''' (fixed location) machine, or a '''lap-top''' (portable personal computer). | + | In comtemporary parlance (where the abbreviation '''PC''' is often used), the term generally refers to either a '''desk-top''' (fixed location) machine, or a '''lap-top''' (portable personal computer). The term 'PC' is now usually a synonym for [[IBM-compatible PC]]'s. |
A '''note-pad''' is effectively a small lap-top, but one without a keyboard, using a [[touch-screen]] for user input. Recently, portable PC's have merged with portable phones, producing the now-ubiquitous [[smart-phone]]. | A '''note-pad''' is effectively a small lap-top, but one without a keyboard, using a [[touch-screen]] for user input. Recently, portable PC's have merged with portable phones, producing the now-ubiquitous [[smart-phone]]. | ||
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Changing technology made personal computers both possible, and also desirable, instead of sharing a [[mainframe]] using time-sharing - the previous model of computer usage. | Changing technology made personal computers both possible, and also desirable, instead of sharing a [[mainframe]] using time-sharing - the previous model of computer usage. | ||
| − | One principal driver of personal computers was the advent of high-performance | + | One principal driver of personal computers was the advent of high-performance displays (in particular, [[bit-mapped display]]s). While allowing all manner of powerful new applications, they used a lot of computing power to drive them. |
| − | displays (in particular, [[bit-mapped display]]s). While allowing all manner of powerful new applications, they used a lot of computing power to drive them. | ||
| − | This melded well with a fortuitous contemporary development, that of the microprocessor]]. Some early 'personal computers' (in the general sense of the term, that they were intended for use by one person at a time) were built out of many [[PCB]]s, like other computers of the era. | + | This melded well with a fortuitous contemporary development, that of the [[microprocessor]]. Some early 'personal computers' (in the general sense of the term, that they were intended for use by one person at a time) were built out of many [[integrated circuit]]s, held on a number of [[PCB]]s, like other computers of the era. |
| − | The earliest was probably the [[LINC]]; an even more influential early personal computer was the [[Xerox | + | The earliest was probably the [[LINC]]; an even more influential early personal computer was the [[Xerox Alto]], which pioneered the screen-based interface now ubiquitous among personal computers. |
Very slightly later, the first PC's (in the sense of 'small computer which an ordinary person could afford'), using the first microprocessor appeared. Eventually the two merged; the [[Apple]] [[Lisa]], although not commercially successful, pointed the way, and the Apple [[Macintosh]] confirmed the unification of the two groups of 'personal computers'. | Very slightly later, the first PC's (in the sense of 'small computer which an ordinary person could afford'), using the first microprocessor appeared. Eventually the two merged; the [[Apple]] [[Lisa]], although not commercially successful, pointed the way, and the Apple [[Macintosh]] confirmed the unification of the two groups of 'personal computers'. | ||
| + | |||
| + | ==See also== | ||
| + | |||
| + | * [[Datapoint 2200]] - the first mass-produced personal computer intended for ordinary people | ||
| + | * [[IBM-compatible PC]] | ||
| + | |||
| + | ==Further reading== | ||
| + | |||
| + | * Gordon Laing, ''Digital Retro: The Evolution and Design of the Personal Computer'', Sybex, Alameda, 2004 | ||
| + | * Michael Nadeau, ''Collectible Microcomputers'' (Schiffer Book for Collectors), Schiffer, Atglen, 2002 | ||
| + | |||
| + | [[Category: Computer Basics]] | ||
| + | [[Category: Personal Computers]] | ||
Latest revision as of 18:13, 12 June 2023
A personal computer is one designed for use by a single person at a time (even though it may be running a time-sharing operating system for technical reasons).
In comtemporary parlance (where the abbreviation PC is often used), the term generally refers to either a desk-top (fixed location) machine, or a lap-top (portable personal computer). The term 'PC' is now usually a synonym for IBM-compatible PC's.
A note-pad is effectively a small lap-top, but one without a keyboard, using a touch-screen for user input. Recently, portable PC's have merged with portable phones, producing the now-ubiquitous smart-phone.
Background
Changing technology made personal computers both possible, and also desirable, instead of sharing a mainframe using time-sharing - the previous model of computer usage.
One principal driver of personal computers was the advent of high-performance displays (in particular, bit-mapped displays). While allowing all manner of powerful new applications, they used a lot of computing power to drive them.
This melded well with a fortuitous contemporary development, that of the microprocessor. Some early 'personal computers' (in the general sense of the term, that they were intended for use by one person at a time) were built out of many integrated circuits, held on a number of PCBs, like other computers of the era.
The earliest was probably the LINC; an even more influential early personal computer was the Xerox Alto, which pioneered the screen-based interface now ubiquitous among personal computers.
Very slightly later, the first PC's (in the sense of 'small computer which an ordinary person could afford'), using the first microprocessor appeared. Eventually the two merged; the Apple Lisa, although not commercially successful, pointed the way, and the Apple Macintosh confirmed the unification of the two groups of 'personal computers'.
See also
- Datapoint 2200 - the first mass-produced personal computer intended for ordinary people
- IBM-compatible PC
Further reading
- Gordon Laing, Digital Retro: The Evolution and Design of the Personal Computer, Sybex, Alameda, 2004
- Michael Nadeau, Collectible Microcomputers (Schiffer Book for Collectors), Schiffer, Atglen, 2002
