Amazing #02
14 июля 1998 |
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At leisure - answers to frequently asked questions about your Amiga.
Music by Andrew Fer RESPONDS TO THE MOST FREQUENTLY ASKED QUESTIONS! -WILL AMIGO releasing? -At the present time are made: 1. Amiga International Firm in Europe and QuikPak in USA: A1200 Magic (details, below) A1200 Surfer A4000T/040 A4000T/060 (A6000) 2. The German firm Eagle Computer produces the model: Eagle 1200TE, Eagle 1200TE/040 Eagle 1200TE (Eagle 1200TE + Blizzard 1230/IV) Eagle 1200TE (Eagle 1200TE + Blizzard 1260) Eagle 4000TE, as well as kits for the upgrade A1200 in the A1200T (Shuttle Boards) 3.Nemetskaya Micronik company produces: A1300 (A1200T/ZorroII) A1500 (A1200T/ZorroIII), as well as kits for upgrades in A1200T A1200 4. Firm Silent Paw Productions produced models Amiga-Laptop: PAWS1200 PAWS4000 5. Several firms in Velikobretanii also received a license to manufacture Clone Amigo. In the second quarter of 1998, German firm Phase 5 digital products planned start your computer the next generation - A / BOX. Sample characteristics: all computer components "protection" in single chip, 128-bit internal bus, PowerPC processor at up to 500Mhz, separate video memory for windows two video outputs, two video inputs, 4 physical channel 16-bit audio. -What is the difference from the AMIGA AMIGA Surfer Magic? -A1200 Surfer = A1200Magic +2 "270Mb HDD + Modem 14400 external + suite Internet +100 free hours in the ibm.net. -What are the characteristics A1200? 1.AGA-chip having sleuyuschie Features: . schedule 1 to 8 bits per pixel, . mode HAM8 (16 million colors) . hardware sprites and 16 colors with a transparent color and a resolution that does not depend on the screen resolution, . Hardware implementation of block persylok, vector graphics and shading of polygons. sanctioned and independent scrolling of two screens - dual playfield, . RISC-processor (Copper), which monitors moving the beam across the screen and allowing change the graphics mode on the fly, . arbitrary control frequencies of developable weave, . the ability to synchronize from an external vieosignala, . 14-bit stereo 2.Dvunapravleeny parallel port (Centronics) 3.Video output RGB (digital TTL 4-bit and analog) 4.Nizkochastotny PAL (NTSC) video output 5.Vysokochastotny PAL (NTSC) output (For antenna TV input) 6.Skorostnoy serial port RS232C 7.Stereo audio output is automatically switched to mono when you connect only one channel 8.Interfeys for external drive (up to three devices) 9.Dva size sockets controller (similar to SEGA) and mouse (Bus Mouse) 10.IDE ATA interface (for 2.5 "and 3.5" drives) 11.PC-CARD (PCMCIA) interface (for example, Ethernet-cards) 12.Vstroennaya membrane keypad ( () 13.Diskovod 3.5 "880Kb 14.Intereys processor bus (Trapdoor-slot) to connect the accelerator to the processor 68030/040/060/PowerPc, fast-memory, clock Real-Time and Fast SCSI-2 controller. AMIGA 4000T incorporates: 1.Protsessor Motorola 68040 25 Mhz 2.Kontroller fast-memory 3.Fast SCSI-2 controller 2.Diskovod 3.5 "1.76Mb 5.Sloty ZorroIII-32-bit asynchronous bus avtokonfiguriruemaya Everything else is similar to that for A1200, except the absence of pal (Ntsc) encoder and videomodulyatora. Instead of Trapdoor-slot installed CPU-slot into which you installed motherboard with the processor. AMIGA 4000T/060 instead of the board 68040/25 equipped 68060/50. -WHAT IS GENLOCK? -This is a fee or a separate device allows you to "impose" the image of computer to video. With its done by simply using the video montage: imposition of titles on video, was implemented by the Box computer generated imagery in film ... Total working principle is: the screen is drawn picture, one of the colors which is "transparent", ie instead of points this color will be seen vidiosignal. -Tell us briefly about OPPORTUNITIES Amigo. -Istorichski AMIGA was not devepoled as a set of boards for self-assembly, but as a single board is almost completely completed computer. The essentials - video, audio, keyboard controllers, floppy drives, ports - has been integrated in the chipset (chipset), which is the "heart" of any Amiga. And in a Motherboard postovlyaetsya that usually unlikely whether the need for most polzoeateley: Capture Cards, NICs, etc. The very first used in the Amiga OCS chipset (Original ChipSet) - already in 1984 the very first Amiga he made available 14bitny stereo and 4096 colors on the screen simultaneously with hardware compression (Mode HAM). In the next version - ECS (Enhanced) - added the possibility of arbitrary manipulated by the refresh rate (not only television frequencies) and new permission. And finally, a modern chipset (Actually it is quite old, released in 1992) - AGA (Advanced Graphics Architecture), formerly known as AA, completely removed all limits on color - Now in all modes available to 16 million colors. This whole line is maintained Software compatibility: the program is well written for older chipsets are fully functional in the new. All currently manufactured are based on the Amiga AGA chipset. On the other hand, the possibility chipset does not limit the graphics capabilities of the machine: if you want to receive "Crazy" just to have a permit or opportunity to connect more than one monitor, AMIGA easily extended graphics cards. Same goes for the sound - available multichannel audio card. -WHAT IS THE MODE HAM8? Mode-HAM (Hold and Modify) - is graphics mode with hardware compression. In the AGA-shnom mode HAM8 at eight physical bits per pixel in a video gets 18-bit screen, that is, 262,144 colors simultaneously. This compression - so called lossy compression, similar to a JPEG, a color point mode, HAM depends on the color dots to the left of her. Using this mode reduces the memory requirements for storing graphics and demands for speed hard drive for playing with his full-color animation (For VHS-quality animation, missing two with half megabytes per second). The disadvantage HAM regime is a practical impossibility to change certain areas of the picture: to change the picture, as a rule, necessary to bring it all over again. -What is Copper? -This is a RISC - the processor in the chipset. As befits a truly RISC - processor, it has only three operations, and implements its program - copperlist. Copper is the task of tracking the position of the beam on and perform certain operations when the beam is at fixed points. Due to different Copper portions of the screen may have different vieorezhimy and located in different places videopamya TUE. Ability to "offset" screens AmigaOS - Copper is also a merit. However, as many beautiful effects in demah and toys. -WHAT IS BLITTER? -This is another composes chipset. Blitter designed to "transfer" and overlay graphics, vector drawing, and painting the planes without the participation of CPU. Due to this during blittera processor can engage in "their affairs." , Which monitor will come to an AMIGO? -Almost any. The cheapest solution - the TV, it can be connected in three ways - at a high frequency (output RF modulator, the worst quality) to low frequency (output Comp) and RGB through SCART (best quality). Use any video monitor from the old Soviet and of bourgeois art (BC, Spectrum, Agate, ATARI, COMMODORE, etc.). In this case, obtained permission from 320 (362) to 1448 pixels per line, and 256-280 lines vertically. When using the so-called interlaced scanner can produce up to 576 lines - but and the image will flicker (this mode is used in television). SVGA Monitors from PC allow ispolzovat permission type 640x480, and if there Graphics Card - 800x600 or more (some instances can run at 800x600 to VGA). Multisync - monitors (this is the the best option for Amiga) allows use the above modes (including 800x600) without a graphics card.
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