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Section 1

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Batch systems

Front

1 / 25

iOS Dev Swift

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6 years ago

Date created

Mar 1, 2020

Cards (25)

Section 1

(25 cards)

Batch systems

Front

jobs entered as a whole and in sequence

Back

Network Manager

Front

Coordinates the services required for multiple systems to work cohesively together

Back

Random access memory (RAM)

Front

In charge of main memory

Back

Hybrid systems

Front

- Combination of batch and interactive - Light interactive load

Back

Real-time systems

Front

- Reliability is critical - Used in time-critical environments

Back

Cooperation Issues

Front

- No single manager performs tasks in isolation - Each element of an operating system

Back

1940s

Front

- Computers operated by programmers presiding from the main console

Back

Read-only memory (ROM)

Front

Holds firmware: programming code Non-volatile - Contents retained when the power is turned off

Back

1980s

Front

- More flexible hardware - Operating system functions - Evolution of personal computers and high-speed communications

Back

1990s

Front

Demand for Internet capability Increased networking Increased tighter security demands Multimedia applications

Back

Device Management

Front

- In charge of connecting with every available device

Back

File Management

Front

- In charge of tracking every file in the system - Enforcing user/program resource access restrictions - Controlling user/program modification restrictions - Allocating space for a file on secondary storage - Retrieving files efficiently

Back

Network operating systems

Front

- Special class of software - Wireless networking capability

Back

1970s

Front

Main memory physical capacity limitations

Back

User Interface

Front

- Portion of the operating system - Graphical user interface (GUI) - Command line interface

Back

Embedded systems

Front

- Computers placed inside other products

Back

Interactive systems

Front

- allow multiple jobs - Faster turnaround than batch systems

Back

User Interface

Front

Allows the user to issue commands to the operating system

Back

1950s: second generation

Front

- Computer operators - Job scheduling - Expensive time lags between CPU and I/O devices - I/O devices (tape drives and disks): gradually became faster - Control unit placed between I/O and CPU as a buffer: reduced speed discrepancy

Back

Processor Management

Front

-In charge of allocating Central Processing Unit -Tracks process status -Comparable to a traffic controller

Back

Operating system

Front

Manages all hardware and all software and controls

Back

Manager tasks

Front

Monitor the system's resources continuously Allocate a resource Deallocate a resource

Back

Network Management

Front

- Included in operating systems with networking capability - Authorizes users to share resources

Back

Cloud Computing

Front

- Practice of using Internet-connected resources - Operating system maintains responsibility - Role of the operating system

Back

1960s

Front

- Speed caused problems with slower I/O devices - Multiprogramming: many programs loaded and sharing the CPU

Back