Computer Operating System

The latest articles related to Computer Operating System

Device file – Implementation

By definition, device nodes correspond to resources that an operating-system kernel has already allocated. Unix identified those resources by a ”major number” and a ”minor number”, both stored as part of the structure of a node. The assignment of these numbers occurs uniquely in different operating systems and on different computer platforms. Generally, the major [...]

File Allocation Table – Introduction

File Allocation Table (FAT) is a computer file system architecture now widely used on many computer systems and most memory cards, such as those used with digital cameras. FAT file systems are commonly found on floppy disks, flash memory cards, digital cameras, and many other portable devices because of their relative simplicity. Performance of FAT [...]

Control-C – Introduction

Control-C is a common computer command. It is generated by pressing the key while holding down the key on a computer keyboard. The equivalent key combinations on Mac OS computers is Command-C. In graphical user interface environments that use the control key to control the active program, control-C is often used to copy highlighted text [...]

Jupiter Ace – Introduction

Jupiter Cantab was formed by Richard Altwasser and Steven Vickers. Both had been on the design team for the Sinclair ZX Spectrum. Altwasser did some work on the development of the ZX-81 and in the design of the hardware of the Spectrum. Vickers adapted and expanded the 4K ZX-80 ROM to the 8K ZX-81 ROM [...]

Symmetric Multi-Processing – Advantages and disadvantages

SMP has many uses in science, industry, and business which often use custom-programmed software for multithreaded (multitasked) processing. However, most consumer products such as word processors and computer games are written in such a manner that they cannot gain large benefits from concurrent systems. For games this is usually because writing a program to increase [...]

Download.ject – Attack of June 23, 2004

Computer criminals placed Download.ject on financial and corporate websites running IIS 5.0 on Windows 2000, breaking in using a known vulnerability. (A patch existed for the vulnerability, but many administrators had not applied it.) The attack was first noticed June 23, although some researchers think it may have been in place as early as June [...]

Software cracking – Industry response

Apple Computer has begun incorporating a Trusted Platform Module into their Apple Macintosh line of computers, and making use of it in such applications as Rosetta. Parts of the operating system not fully x86-native run through the Rosetta PowerPC binary translator, which in turn requires the Trusted Platform Module for proper operation. (This description applies [...]

Commodore 1541 – Introduction

Commodore 1541 disk drive, with open disk slot. This version uses a Newtronics drive mechanism, and the rotating lever is used to hold the disk in place.:$endImage–> The Commodore 1541 (aka CBM 1541, and originally called VIC-1541), made by Commodore International, was the best-known floppy disk drive for the Commodore 64 home computer. The 1541 [...]

Process (computing) – Introduction

process is an instance of a computer program that is being executed. It contains the program code and its current activity. Depending on the operating system (OS), a process may be made up of multiple threads of execution that execute instructions concurrently. A computer program is a passive collection of instructions, a process is the [...]

Run time (computing) – Introduction

run time, run-time, runtime, or execution time refers most literally to the time during which a program is running (executing). It contrasts to other phases of program development and use, such as compile time, link time, load time, etc. Closely linked to this most basic sense is the state of the entire system on which [...]

Bleeping Computer – Community

Members, Volunteers and Staff As of 24 July, there are 373,262 registered members, of which the vast majority are ‘regular’ members. However, a significant proportion of the membership also includes members who work for the site, in varied roles, as volunteers. Some examples of such volunteer roles are the Malware Response Team and Trainees and [...]

Symbolic link – Introduction

symbolic link (also ”symlink” or ”soft link”) is a special type of file that contains a reference to another file or directory in the form of an absolute or relative path and that affects pathname resolution. Symbolic links were already present by 1978 in mini-computer operating systems from DEC and Data General’s RDOS. Today they [...]

Software calculator – Platforms

Software calculators are available for many different platforms, and they can be: * A program loaded onto and run on a computer as a separate, self-contained package. These can be for single or multiple operating systems. * An on-line calculator, implemented on a web page, where it is run from a server computer and accessed [...]

ETA10 – Operating systems and applications

The ETA10 series could run either ETA’s EOS operating system, which was widely criticized for various problems, or a port by Lachman Associates, a software personnel firm, of UNIX System V (Release 3). While EOS suffered a reputation for poor quality, ETA’s UNIX was better received by customers. Use of the ETA10 was rather complicated, [...]









Go To Top »