Computer Systems Hardware

Hardware Computer Systems Standard Grade Computing Studies Computing Department, Calderside Academy

Software Computer Systems Standard Grade Computing Studies Calderside Academy Computing Department

What is software ,[object Object],[object Object],[object Object],[object Object],[object Object]

More on software ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Operating System ,[object Object],[object Object],[object Object],[object Object],[object Object]

Modern Operating Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Standard Functions of the OS. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

More OS - Standard Functions ,[object Object],[object Object],[object Object]

Resource allocation ,[object Object],[object Object],The resource allocation system also ensures that all programs running on the system receive as much processing time as possible.

OS - Special Functions ,[object Object],[object Object],[object Object],[object Object]

OS - Different modes of processing ,[object Object],[object Object],[object Object],[object Object],[object Object]

OS - Different modes of processing (cont.) ,[object Object],[object Object],[object Object]

OS - Different modes of processing (cont.) ,[object Object],[object Object],[object Object],For example, some word processors print files in the background, enabling you to continue editing while files are being printed.

The Filing System ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Types of filing system ,[object Object],[object Object],[object Object],[object Object],[object Object],A Hierarchical Filing Structure C:/ D:/               Computer Drives Folders Files

Types of access ,[object Object],[object Object],[object Object],[object Object],[object Object]

Systems Software ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Low Level Languages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

High Level Languages ,[object Object],[object Object],[object Object],[object Object]

Common features of High Level Languages ,[object Object],[object Object],[object Object]

Common features of High Level Languages ,[object Object],[object Object]

Types of translator ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Types of translator ,[object Object],[object Object],[object Object],[object Object],[object Object]

Assembly Language ,[object Object],[object Object],[object Object]

Types of translator ,[object Object],[object Object],[object Object],LDA #28 PRN #76 CLE #1 JMP #8 011000011100 101001001100 100100000001 110100001000 Assembler

Types of High Level Language ,[object Object],[object Object],[object Object],[object Object]

Computer System - Block Diagram ,[object Object],[object Object],Data Flow Processor Output Input Backing Storage

Advanced types of Input ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Optical Character Recognition ,[object Object],[object Object],[object Object]

Advanced types of Input ,[object Object],[object Object],[object Object],[object Object]

More on Output Devices. ,[object Object],[object Object],[object Object],[object Object],Laser printers are more expensive , produce high quality printouts, can produce 8 to 12 pages in a minute and are almost silent when they are working. ,[object Object],[object Object],[object Object]

More on Output Devices ,[object Object],[object Object],[object Object],[object Object]

More on Output Devices ,[object Object],[object Object],Other speech synthesis programs can tell the user what they are doing (for example floor announcements in a speaking elevator). Hello, I am Hal!

More on Backing Storage ,[object Object],Tape cheap Floppy disc CD / RW USB memory stick. Portable

What is the CPU ,[object Object],[object Object],[object Object],Memory Control PROCESSOR Data Flow Central Processing Unit ALU.Arithmetic and Logic Unit ROM RAM Control unit

RAM and ROM ,[object Object],[object Object],[object Object],[object Object]

More about the Processor ,[object Object],[object Object],[object Object]

Binary Everywhere! ,[object Object],[object Object],[object Object],[object Object]

Storing Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Storing large numbers ,[object Object],[object Object],[object Object],[object Object]

Floating Point Representation ,[object Object],[object Object],Mantissa Exponent The Mantissa is the number to be stored rounded to a few places and with the point moved. The Exponent is the number of places we must move the point to the right in order to get back our original number, 24510 . What must you know? Large numbers can be stored in a computer using floating point representation. The number is broken into two halves. The first half (the mantissa) is the number rounded to a few places and the second half (the exponent) is the number of places the point must be moved to create the original number!

Storing Text ,[object Object],[object Object],[object Object],[object Object],[object Object]

Storing Graphics ,[object Object],[object Object],[object Object]

Character Set ,[object Object],[object Object],[object Object],[object Object]

Control Characters ,[object Object],[object Object],[object Object]

More on Memory ,[object Object],[object Object],[object Object]

Capacity ,[object Object],445 floppy discs = 1 CD-ROM

Types of Access ,[object Object],[object Object],[object Object]

Non-magnetic storage ,[object Object],[object Object],[object Object]

Virtual Reality ,[object Object],[object Object],[object Object],[object Object]

Multimedia ,[object Object],[object Object],[object Object]

[object Object],100.11100 10011100 * 2 3

Computer Systems Hardware

Recommandé

Recommandé

Contenu connexe

Tendances

Tendances (20)

En vedette

En vedette (20)

Similaire à Computer Systems Hardware

Similaire à Computer Systems Hardware (20)

Dernier

Dernier (20)

Computer Systems Hardware