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软件开发商队伍 - 黑莓有过吗?
本帖最后由 WiFi 于 2019-6-20 11:45 编辑 / t: R" H. }; E. r+ f; A
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: G. k0 C, H0 ?8 Y3 |软件开发商队伍 - 黑莓有过吗?! p/ i6 |; i0 H! Q
BB本质上是和赛班,WinCE/WinMo同样的老一代专用系统。期望它们能够有完善的现代应用程序本身就是奢望。
% k& U+ m5 w4 `* N) U( d$ WiOS给安卓,WinMo指明了现代手机系统的方向。安卓没有负担,而且OS底子本来就好,可以立刻修改应用框架/应用层向iOS靠拢。WinMo由于底层OS是WinCE内核, 本来是为龙球(DragonBall)设计的(比如:最多支持32个进程)。到了Windows Phone 7后实在是没有办法支持完整/丰富的应用框架,不得不在Windows Phone8转到Windows NT内核。其实微软的Lift (应用框架) & Shift (内核到NT)战略执行是比较成功的。WP7的应用90%以上可以直接在WP8上跑。可惜比安卓晚了两年。而且仍然坚持收费。死的很难看。
, V" Z# m' H/ [2 Y# B; [BB的困境和WinCE一样。转QNX也是不得已。关键是iOS/安卓已经有枪了,你仍然使用冷兵器。就算你可以一个打8个,也禁不住一个小屁孩给你一枪。$ j1 m R9 Y( m7 g
( @6 u- ~$ g: z. R关于DragonBall的规格:Wiki:
) {0 y8 d( H' h( G; u2 pThe processor is capable of speeds of up to 16.58 MHz and can run up to 2.7 MIPS (million instructions per second), for the base 68328 and DragonBall EZ (MC68EZ328) model. It was extended to 33 MHz, 5.4 MIPS for the DragonBall VZ (MC68VZ328) model,[2] and 66 MHz, 10.8 MIPS for the DragonBall Super VZ (MC68SZ328).# Z5 K, Y% l# T" y0 u2 w
It is a 32-bit processor with 32-bit internal and external address bus (24-bit external address bus for EZ and VZ variants) and 32-bit data bus.[3] It has many built-in functions, like a color and grayscale display controller, PC speaker sound, serial port with UART and IRDA support, UART bootstrap, real time clock, is able to directly access DRAM, Flash ROM, mask ROM, and has built-in support for touch screens.( d1 r+ a+ ^. k2 g; y
4 C3 G2 z7 s7 ?0 K# D6 L对比第一台安卓手机HTC Dream用的是高通MSM7201A:
1 @4 n1 S; o+ z. s3 ^0 N2 l+ pMSM7201A 528 MHz:
: ?' v, [6 D! h: E$ vIntegrated ARM11™ applications processor and ARM9™ modem
- l0 O2 E( D( dQDSP4000™ and QDSP5000™ high-performance digital signal processors (DSP)( l1 o, ^# `! F
528 MHz ARM11 Jazelle™ Java® hardware acceleration |
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